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Source of Abstracts, 1970(CAS monitors nearly 12,000 publications)
% of total No. of Sourcepapers in CA Journals 85% from 2000 75% from 1212 50% from 340 30% from 250 (core journals)
25% from 50
TW5
Origin of Journal Abstracts, 1970 and 2005
CountryU.S. 27.4% 23.2%U.S.S.R. 23.6% 3.1%Japan 7.2% 11.2%Germany (E. & W.) 6.5% 6.9%U.K. 6.2% 4.2%France 4.1% 3.4%China — 14.1%All Others 25.0% 33.9%
72.6%
TW6
Language of Articles Abstracted 1966 and 2005
English 55% 83.2%Russian 21% 1.5%German 7% 1.3%French 5% 0.3%Japanese 3% 3.4%Chinese 0.5% 8.7%Other 8.5% 1.6%
TW7
Contents One Week…Biochemistry Sections1. History, education and documentation…...625672. General Biochemistry................................ 626233. Enzymes....................................................628834. Hormones and Related Subjects................630785. Radiation Biochemistry..............................633256. Biochemical Methods.................................634197. Plant Biochemistry......................................635678. Microbial Biochemistry...............................637479. Nonmammalian Biochemistry.....................6398110. Animal Nutrition..........................................6411911. Mammalian Biochemistry...........................6423512. Mammalian Pathological Biochemistry.......6452813. Immunochemistry.......................................6477115. Toxicology..................................................6485416. Pharmacodynamics....................................6491316. Fermentations............................................6533917. Foods.........................................................6541918. Plant-Growth Regulators............................6557919. Pesticides...................................................6571220. Fertilizers, Soils, and Plant Nutrition...........65897
TW14
Contents One Week…Organic Chemistry Sections21. General Organic Chemistry..............................…..6601322. Physical Organic Chemistry..............................….6602623. Aliphatic Compounds................................………..6626224. Alicyclic Compounds ............................................6043425. Noncondensed Aromatic Compounds..............…..6649926. Condensed Aromatic Compounds.........................6667027. HeterocycIic Compounds (One Hetero Atom)…... 6671428. Heterocyclic Compounds (More Than One Hetero
Atom..............................................................….... 6684929. Organometallic and Organometalloidal
Compounds ...............................................................................67007
30. Terpenoids ..........................................………....…6711731. Alkaloids ............................................................…6714932. Steroids ..........................................................……6716933. Carbohydrates........................................................6721634. Synthesis of Amino Acids, Peptides, and
Proteins..................................................................67230
TW15
…and Contents the next Week…• …include 12 sections of Macromolecular
Chemistry…Macromolecular Chemistry Sections35. Synthetic High Polymers.......…………………5590036. Plastics Manufacture and Processing………..5611037. Plastics Fabrication and Uses………………...5635538. Elastomers, Including Natural Rubber……….5643639. Textiles……………………………………….….5651940. Dyes, Fluorescent Whitening Agents, and
Photosensitizers…………………………………5666441. Leather and Related Materials………………..5672142. Coatings, Inks, and Related Products……….5674043. Cellulose, Lignin, Paper, and Other Wood Products
…………………………………………….…..…..5682444. Industrial Carbohydrates………………………5694445. Fats and Waxes………………………….……..5697946. Surface-Active Agents and Detergents………57000
TW16
…and Contents the next Week……18 sections are concerned with Applied Chemistry
and Chemical Engineering…Applied Chemistry and Chemical Engineering Sections47. Apparatus and Plant Equipment…………………………………5702948. Unit Operations and Processes………………………………….5707849. Industrial Inorganic Chemicals……………………………………5724550. Propellants and Explosives…………………………………. …...5734451. Petroleum, Petroleum Derivatives, and Related Products…….5736752. Coal and Coal Derivatives………………………………………..5751953. Mineralogical and Geological Chemistry………………………..5755654. Extractive Metallurgy………………………………………………5788555. Ferrous Metals and Alloys………………………………………...5797656. Nonferrous Metals and Alloys…………………………………….5822757. Ceramics…………………..………………………………….…….5854358. Cement and Concrete Products………………………………….5868559. Air Pollution and Industrial Hygiene……………………………..5879560. Sewage and Wastes………………………………………………5884061. Water………………………………………………………………..5889162. Essential Oils and Cosmetics…………………………………….5897063. Pharmaceuticals……………………………………………………5899664. Pharmaceutical
Analysis…………………………………………..59100
TW17
…and Contents the next Week……and finally 16 sections are concerned with Physical and
Analytical ChemistryPhysical and Analytical Chemistry Sections65. General Physical Chemistry…………………………………….59143
66. Surface Chemistry and Colloids……………………………..59440
67. Catalysis and Reaction Kinetics……………………………..5960068. Phase Equilibriums, Chemical Equilibriums, and Solutions…
5969169. Thermodynamics, Thermochemistry, and Thermal Properties……………………………………………………………..5989270. Crystallization and Crystal Structure……………………..……5997171. Electric Phenomena……………………………………..………6021272. Magnetic Phenomena…………………………………………...6064073. Spectra by Absorption, Emission, Reflection,or Magnetic
Resonance, and Other Optical Properties…………………….6077274. Radiation Chemistry, Photochemistry, and Photographic
Processes………………………………………………..61272
75. Nuclear Phenomena………………………………………..6144576. Nuclear Technology……………………………………………..6185977.
Electrochemistry………………………………………………….6208578. Inorganic Chemicals and Reactions…………………………...6230579. Inorganic Analytical Chemistry…………………………………6240380. Organic Analytical
Chemistry…………………………………...62532
TW18
Abstracts
• Often appear within a month of the date of publication of articles from major journals
• May appear anywhere from the date of publication of an article to one year later
• With the advent of online publishing, they may appear before the journal is printed (JBC PIP)…
• …and can disappear before publication if a paper is withdrawn
TW19b
A Typical Abstract: Title
TW20
55913s Optimal control of polymerization reactors. Hicks, James; Mohan, Amar; Ray, Willis Harmon (Dep. Chem. Eng., Univ. Waterloo, Waterloo, Ont.). Can. J. Chem. Eng. 1969, 47(6), 590-7 (Eng). The optimal control policy for continuous stirred tank polymn. reactors and the optimal control program for batch polymn. reactors are discussed. The first problem concerns detg. the temp. and initiator control policy which brings the reactor to the desired steady state while minimizing some objective functional (e.g. start-up time, cost of control action, etc.). The second problem is concerned with finding the temp. and initiator program so that the product from the batch reactor has the best possible mol. wt. distribution. Both free-radical polymn. and linear condensation polymn. examples are considered with mol. wt. distribution moments being used to characterize the polymer. Kinetic parameters typical of styrene are used for the free radical case, and realistic parameters are chosen for the condensation examples. Some of the potential gains possible through supervisory computer control of polymn. reactors are demonstrated. RCHC
A Typical Abstract: Authors and Institution Affiliation
55913s Optimal control of polymerization reactors. Hicks, James; Mohan, Amar; Ray, Willis Harmon (Dep. Chem. Eng., Univ. Waterloo, Waterloo, Ont.). Can. J. Chem. Eng. 1969, 47(6), 590-7 (Eng). The optimal control policy for continuous stirred tank polymn. reactors and the optimal control program for batch polymn. reactors are discussed. The first problem concerns detg. the temp. and initiator control policy which brings the reactor to the desired steady state while minimizing some objective functional (e.g. start-up time, cost of control action, etc.). The second problem is concerned with finding the temp. and initiator program so that the product from the batch reactor has the best possible mol. wt. distribution. Both free-radical polymn. and linear condensation polymn. examples are considered with mol. wt. distribution moments being used to characterize the polymer. Kinetic parameters typical of styrene are used for the free radical case, and realistic parameters are chosen for the condensation examples. Some of the potential gains possible through supervisory computer control of polymn. reactors are demonstrated. RCHC
TW21
A Typical Abstract: Complete Citation
TW22
55913s Optimal control of polymerization reactors. Hicks, James; Mohan, Amar; Ray, Willis Harmon (Dep. Chem. Eng., Univ. Waterloo, Waterloo, Ont.). Can. J. Chem. Eng. 1969, 47(6), 590-7 (Eng). The optimal control policy for continuous stirred tank polymn. reactors and the optimal control program for batch polymn. reactors are discussed. The first problem concerns detg. the temp. and initiator control policy which brings the reactor to the desired steady state while minimizing some objective functional (e.g. start-up time, cost of control action, etc.). The second problem is concerned with finding the temp. and initiator program so that the product from the batch reactor has the best possible mol. wt. distribution. Both free-radical polymn. and linear condensation polymn. examples are considered with mol. wt. distribution moments being used to characterize the polymer. Kinetic parameters typical of styrene are used for the free radical case, and realistic parameters are chosen for the condensation examples. Some of the potential gains possible through supervisory computer control of polymn. reactors are demonstrated. RCHC
A Typical Abstract: Language
TW23
55913s Optimal control of polymerization reactors. Hicks, James; Mohan, Amar; Ray, Willis Harmon (Dep. Chem. Eng., Univ. Waterloo, Waterloo, Ont.). Can. J. Chem. Eng. 1969, 47(6), 590-7 (Eng). The optimal control policy for continuous stirred tank polymn. reactors and the optimal control program for batch polymn. reactors are discussed. The first problem concerns detg. the temp. and initiator control policy which brings the reactor to the desired steady state while minimizing some objective functional (e.g. start-up time, cost of control action, etc.). The second problem is concerned with finding the temp. and initiator program so that the product from the batch reactor has the best possible mol. wt. distribution. Both free-radical polymn. and linear condensation polymn. examples are considered with mol. wt. distribution moments being used to characterize the polymer. Kinetic parameters typical of styrene are used for the free radical case, and realistic parameters are chosen for the condensation examples. Some of the potential gains possible through supervisory computer control of polymn. reactors are demonstrated. RCHC
A Typical Abstract: Abstracter
TW24
55913s Optimal control of polymerization reactors. Hicks, James; Mohan, Amar; Ray, Willis Harmon (Dep. Chem. Eng., Univ. Waterloo, Waterloo, Ont.). Can. J. Chem. Eng. 1969, 47(6), 590-7 (Eng). The optimal control policy for continuous stirred tank polymn. reactors and the optimal control program for batch polymn. reactors are discussed. The first problem concerns detg. the temp. and initiator control policy which brings the reactor to the desired steady state while minimizing some objective functional (e.g. start-up time, cost of control action, etc.). The second problem is concerned with finding the temp. and initiator program so that the product from the batch reactor has the best possible mol. wt. distribution. Both free-radical polymn. and linear condensation polymn. examples are considered with mol. wt. distribution moments being used to characterize the polymer. Kinetic parameters typical of styrene are used for the free radical case, and realistic parameters are chosen for the condensation examples. Some of the potential gains possible through supervisory computer control of polymn. reactors are demonstrated. RCHC
A Typical Abstract: ID tag
TW25
55913s Optimal control of polymerization reactors. Hicks, James; Mohan, Amar; Ray, Willis Harmon (Dep. Chem. Eng., Univ. Waterloo, Waterloo, Ont.). Can. J. Chem. Eng. 1969, 47(6), 590-7 (Eng). The optimal control policy for continuous stirred tank polymn. reactors and the optimal control program for batch polymn. reactors are discussed. The first problem concerns detg. the temp. and initiator control policy which brings the reactor to the desired steady state while minimizing some objective functional (e.g. start-up time, cost of control action, etc.). The second problem is concerned with finding the temp. and initiator program so that the product from the batch reactor has the best possible mol. wt. distribution. Both free-radical polymn. and linear condensation polymn. examples are considered with mol. wt. distribution moments being used to characterize the polymer. Kinetic parameters typical of styrene are used for the free radical case, and realistic parameters are chosen for the condensation examples. Some of the potential gains possible through supervisory computer control of polymn. reactors are demonstrated. RCHC
CAS Numbers First Appeared in 1972
670d Osmotic pressure and macromolecular conformation. Charmasson, Rene (Lab. Phys. Liq., Fac. Sci., Marseilles, Fr.). C.R. Acad. Sci. Ser. C 1971. 272(3). 256-7 (Fr). The thermodynamics of the
N O
CH2CH
nI
TW31
Van’t Hoff law of OSMOTIC PRESSURE variation with concn. was studied for dil. solns. of sucrose [57-50-1], dextran, and poly(vinylpyrrolidone) (I) [9003-39-8]. Due to solvent constraints, the solutes were changed from their preferential, unperturbed state causing a pressure shock which modified the mol. CONFIGURATION.
Abstracts Give Little Information…
TW34
105898x Preparation and synthetic utility of ω-vinylperfluoro-alkanecarboxylates. Kim, Yung K.; Pierce, Ogden R. (Fluorine Res. Lab., Dow Corning Corp., Midland, Mich.). J. Org. Chem. 1969, 34(3), 602-5 (Eng). The addn. of ethylene to ethyl ω-bromoperfluoroalkanecarboxylates under free-radical conditions gave the desired 1: 1 adduct, BrCH2CH2 (CF2CF2)nCOO2Et, in good yield along with the 1 :2 adduct, Br(CH2CH2)2(CF2CF2),CO2Et, and a little of the higher telomers. Treatment of the I : 1 adduct with NaOEt resulted in the formation of Et ω-(vinyl)perfluoroalkanecarboxylates in high yield. Et 3-(vinyl)perfluoro-propionate was converted into 3-(vinyl)perfluoropropionitrile (I) via the corresponding amide. The synthetic approach leading to a fluorosilicone-triazine polymer, -[-SiMe(CH3)(CF3CH2CH2)CH2CH2CF2CF2 (CF3C3N3)-CF2CF2CH2CH2 (CF3CH2CH2)MeSiO-]-, (where CF3C3N3 is 6-trifluoromethyltriazine-2,4-diol), by utilization of I is described.
Each Weekly Issue Contains:
• Author Index• Numerical Patent Index• Patent Concordance• Keyword Index
TW37
Author Index Allowing Explication
Van Eck J 58833tVan Geldrop L M 60347fVanheertum J J 59406tVan Hemert R L 59983dVan Huyssteen J J 60671gVanin V S 60050dVan Itterbeek A 57510y
TW37c
Subject Index
Abetinol. See Podocarpa-7,13-dien-15-ol, 13-isopropyl-
Abietyl alcohol (abietinol). See Podocarpa-7,13-dien-15-ol, 13-isopropyl-
_____, dehydro-. See Podocarpa-7,11,13-trien-15-ol, 13-isopropyl-
_____, tetrahydro-. See Podocarpan-15-ol, 13α-isopropyl-
Abietylamine, dehydro-acetate, quartz flotation by, adsorption and contact angles in
relation to, 66:5968qreaction products with dialkyl and monoalkyl phosphates,
gelation of, 66:P 38490kreaction product with ethylene oxide phosphoric acid, as
lubricating oil for metal
TW46b
Subject Index
JAN-JUN 1967—SUBJECT INDEX Ferroceno[1,2]cyclohex-1-ene-3,6-dione
___, 3-phenyl-, 66:55568jFerrocenecarbonyl Chloride
poIymers, 66:11198jFerrocenecarboxaldehyde 66:85846r
chromatog. of 66:121854cpolarography of, in aq. ethyl alc., 66:78889u
___,1’,2-dimethyI-nuclear magnetic resonance of, 66:104562p
___,1' ,3-dimethylnuclear magnetic resonance of, 66:104562p
TW47
TW50
Chemical Abstracts – Vol. 65
spectrum of, 65: 9943fStrontium nickel antimonate (V)
NiSr3Sb2O4, crystal field theory and spectrum of, 65: 9851b
Strontium nickel molybdate (VI)NiSr2MO6, crystal and magnetic structure and elec. and magnetic properties of, 65:4822c
Strontium nickel niobate (V)NiSr3Nb2O6, crystal field theory and spectrum of, 65:9851b
Hill Indexing System(Modified) for
Compounds Containing Carbon
CARBON, HYDROGEN, THEN ALPHABETICALLY
TW57
TW59C2H2I2
Ethylene, 1,2-diiodo-, 63:5480f C2H2MgO6
See Magnesium carbonateC2H2MnO4
Manganese formate, 63:136fdihydrate, 63:6406b, 7750e
C2H2NAmidogen, vinylidene-, 63:15753bMethyl, cyano-, 63:8174a
C2H2N2
Acetonitrile, imino-, 63:1331dMethylene, aminocyano-, 63:1331d
C2H2N2OFurazan, 63:2540f, 4120c, 9253c
TW60C2H2I2
Ethylene, 1,2-diiodo-, 63:5480f C2H2MgO6
See Mangnesium carbonateC2H2MnO4
Manganese formate, 63:136fdihydrate, 63:6406b, 7750e
C2H2NAmidogen, vinylidene-, 63:15753bMethyl, cyano-, 63:8174a
C2H2N2
Acetonitrile, imino-, 63:1331dMethylene, aminocyano-, 63:1331d
C2H2N2OFurazan, 63:2540f, 4120c, 9253c
TW62C2H2O4
See Oxalic acidC2H2O4Rh
Rhodium formate, 63:12668dhydrate, 63:13083c
C2H2O4Sn
Tin formate 63:2535ce, 9426d, P 10130aC2H2O4Zn
Zinc formate, 63:P 3074aC2H2O4U
Uranyl formate, 63:16761dC2H2T2
Ethylene-1,2-t2, 63:P 15714d
TW71
Probably, 54 arises from fluoride ion trapping either the initial carbonium ion or one of the other intermediates that usually leads to 50 or 53.
C2H5C
NF2
CCH2CH3
NF2
NF
C2H5C N
F
CCH2CH3
NF2
NF2
12
53
+ C2H5C N
F
CCH2CH3
NF2
F
54
Both the 4-chloro- and 4-methoxylphenylfluorimines (13 and 14, respectively) gave small amounts of the
TW72
Registry Numbers in Article
14, 20122-80-9; 15, 20122-81-0; 1626, 19955-15-8; 27, 20122-81-3; 2829, 20122-85-5; 30, 20122-87-6; 3132, 20122-89-8; 33, 20122-90-1; 3437a, 20122-92-3; 37b, 20122-93-4 3839, 20122-95-6; 45, 20122-96-7; 4647, 20116-42-1; 53, 20116-43-2; 5457, 20116-45-4; 58, 20116-46-5; 5960, 20116-48-7; 66, 20116-49-8 67
TW73
20116-40-9 2,3-Butanediamine, 2-chloro-N,N,N’,N’-tetrafluoro- C4H7ClF4N2
20116-41-0 Benzimidoyl fluoride, N-[1,1-bis(difluoroamino)ethyl]-p-chloro- C9H7ClF5N3
20116-42-1 1,1-Ethanediamine, 1-[[1-difluoroamino)-1-fluoroethyl]azo]-N,N,N’,N’-tetrafluoro- C4H6F7N5
20116-43-2 Benzimidoyl fluoride, N-[1,1-bis(difluoroamino)propyl]- C10H10F5N3
20116-44-3 Benzimidoyl fluoride, N-[1-(difluoroamino)-1-fluoropropyl]- C10H10F5N3
20116-45-4
Registry Numbers Index
TW74 Benzimidoyl chloride——, N-benzoyl- [25250-38-8]
promoters, for sodium hydride and sodium methoxide catalyts for polymn. of hexahydroazepinone, 81906r
——, N-(o-cyanophenyl)- [15437-26-0], 80908f——, N-(2,6-dichlorophenyl)- [23695-48-9], 80908f——, N-o-tolyl- [19053-49-7], 80908fBenzimidoyl fluoride——, N-[1,1-bis(difluoroamino)ethyl]-p-chloro-
[20116-41-0], 70208p——, N-[1,1-bis(difluoroamino)propyl]-
[20116-43-2], 70208p——, N-[1,1-(difluoroamino)-1-fluoropropyl]
[20116-44-3], 70208pBenzimidoyl isothiocyanate——, p-chloro-N-(p-chloorophenyl)-
[23938-13-8], 101761v
TW75Convallariakeiskei and majalis and transcoucosica,
chimononthine in leaves of, 98960bmajalis
glycosides of, detn. of photocolorimetry,24756t
photosynthesis by, ecological-physiol.features of, 12057a
Convallatoxin [508-75-8]biol. activity of, 20612vin Convallaria, 89860bheart response to, hawthorn ext. effect on,
20667sMetabolism of, in intestines, 48170y
TW76
508-71-4 8α, 10ß-Ros-15-en-19-oic acis, 10-hydroxy-7-oxo-, γ-lactone C20H28O3
508-75-8 Convallatoxin C29H42O10
508-76-9 Corchoroside A C29H42O10
508-77-0 Cymarin C30H44O9
509-14-8 Methane, tetranitro- CN4O8
509-18-2 Delsoline C25H41NO7
509-36-4 ß-Colubrine C22H42N2O3
TW77
C29H42O9
Corchoroside [508-76-9], 73979bCorchoroside A [508-76-9], P 6530kHelveticoside [630-64-8], P 6530k, 48170y
C29H42O9
Atisane-17,18-dioic acid, 15α-carboxy-13,16-epoxy-14,15-dihydroxy-13-isopropyl-
trimethyl ester, 14-acetate, (-)-[25452-10-2], 22210m
Convallatoxin [508-75-8], 20612v, 20667s, 48170y, 98960b
TW96 C6H7NO
Hydroxylamine, N-phenyl-, 86425k, 108349tKetone, methyl pyrrol-2-yl, 99040f
6-Oxabicyclo(3,1,0)hexane-1-carbonitrile, 64123hPhenol, m-amino-, 14896s, 25432p, P44643z,
78769k, P82914w, 84760s, 94047d, 99815n,102844d, 107890a
compd. with boron chloride (BCl3) (3:1), 2831d
——, o-amino-, 9925w, 14896s, 62249e, 62695x,compd. with boron chloride (BCl3) (3:1), 2831d
polymer with (propylphosphinidene)dimethanol,117415p
——, p-amino-, See Subject Indexcompd. with boron chloride (BCl3) (3:1), 2831d
TW97
Aniline, N-(2-ethyl-2,3-butadienyl)-
——, 2-(hexadecyloxy)-5-(methylsulfonylP 109643w
——, hexahydro-, See Cyclohexylamine——, p-(hexylthio)-, 67:43495r——, ar-hydroxy-, See Phenol, amino-
——, N-hydroxy-, See Hydroxylamine, N——, N-(2-hydroxyethyl)-. See Ethanol,
lino-——, 4,4’-imidocarbonylbis N,N-dimethy
TW98
Phenol, p-allyl-
metabolism of, by liver, diethylaminoethyl diphenylpropylacetic acid effect on, 67:62695x
polymer with (propylphosphinidene)dimethanol, prepn. and properties of, 67: 117415p
reaction of, with 2,2-dihydroxy-1,3-indandione, mechanism of, 67:107890a
——, p-amino-as p-acetamidophenol and phenacetin metabolit
in urine, primary substance detn. in
TW100
Aniline, N-hexadecyl
——, N-hexadienyl-, See Hexadienylamine, N-phenyl-
——, hexahydro-, See Cyclohexylamine
——, N-hexatrienyl-, See Hexatrienylamine, N-phenyl-
——, N-hexyl-, See Hexylamine, N-phenyl-
——, ar-hydroxy-, See Phenol, amino-
——, N-hydroxy-, See Hydroxylamine, N-phenyl-
——, N-(2-hydroxyethyl)-, See Ethanol, 2-anili-
Functions by Class Namein Descending Order of PrecedenceisocyanidesaldehydesketonesthionesalcoholsphenolsthiolshydroperoxidesGroup V oxides, sulfides, selenides, tellurides, imidesaminesphosphinesphosphoranesremaining trivalent Group V hydrides
TW102
Ring System Usage
Number of rings = 2Size of rings = 4,5Elemental analysis of rings = C3N-C4O
NO
CO2H
TWnew
2-RING SYSTEMS
4,5CNOP-C2NOP
2,7-Dioxa-5-aza-1-phosphabicyclo[3.2.0]heptaneC2B2-C2B3
2,3,5,6-Tetraborabicyclo[2.1.1]hexane... C3N-C4N
1-Azabicyclo[3.2.0]heptane C3N-C4O
2-Oxa-7-azabicyclo[3.2.0]heptane3-Oxa-6-azabicyclo[3.2.0]heptane
TWnew
Indexes in Volumes
1st-4th Author, Subject5th Author, Subject, Numerical Patent, Formula6th Author, Subject (incl. Ring), Numerical Patent,
Formula7th Author, Subject (incl. Ring), Numerical Patent,
Formula, Patent Concordance8th Author, Subject, Numerical Patent, Formula-Ring,
Patent Concordance, Registry Handbook, Index Guide9th Author, Subject, Numerical Patent, Formula-Ring, Patent
Concordance, Chemical Substance Index, Registry Handbook, Index Guide and Index Guide Supplements
TW103
Indices
1 Author Index1907 Subject Index3 Index of Ring Systems1920 Formula Index1935 Numerical Patent Index1963 Patent Concordance1968 Index Guide
General Subject Index Chemical Substance Index
Combined 1981 – – Patent Index
TW
Collective Indices10 Year Collective 5 Year Collective (1907-1956) (1957-1976)
1st 1907-1916 4v. 6th 1957-1961 15v.2nd 1917-1926 5v. 7th 1962-1966 24v.3rd1927-19365v. 8th 1967-1971 34v.4th 1937-1946 6v. 9th 1972-1976 62±1v.5th 1947-1956 14v.
14th 1997-2001 431,642 pages (9th had 95,882 pages)
The week of July 30, 2007 established a new record of 24,623 records added
TW104