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Coverage of CAS Basic Patents by Year

CAS has covered patents of chemical, biochemical and chemical engineering interest from 1907 to the present.

This table lists the countries, patent kinds and years of CAS coverage for basic patents, i.e., patent documents abstracted and indexed by CAS.

Country Code Kind Code Publication Type Publication Years
AM Armenia A Patent of invention 2015-
U Utility model 2009-
AP African Regional Industrial Property Organisation A Granted Patent 2000-
AR
Argentina
A1 Patent Application 1959, 1961, 1964, 2006-
A2 Divisional Patent Application 1959, 1961, 1964
A3 Additional Patent Application 1959, 1961, 1964
A4 Independent Utility Model Application 1959, 1961, 1964, 2006-
A6 Additional Utility Model Application 1959, 1961, 1964
AT Austria A1

Oesterreichische Patentanmeldung (Application with search report)

10/2005-
A2 Oesterreichische Patentanmeldung (Application without search report) 10/2005-
A4 Oesterreichische Patentanmeldung (Post-grant Application) 10/2005-
B Patentschrift (Patent) 1907-

AU Australia

A1 Standard/Petty Application 09/2001-
A4 Granted OPI Innovation Patent 05/2001-
A5 Pre-Granted/OPI Innovation Patent 05/2001-
B1/B2 Patent 1927-

B3

Petty Patent

1982-

BA Bosnia and
Herzegovina
A Patent application 1998-
B Granted patent 2020-
B1 Granted patent right former 1998, 1999
D Granted patent 2000-

BE Belgium

A/A1

Patent, French Language

1928-

A2 Patent, Dutch Language 1928-
A3 Patent, German Language 1928-
A4 Improvement Patent, French 1980-
A5 Improvement Patent, Dutch 1980-
A6 Improvement Patent, German 1980-
A7 Patent of Importation, French 1980-
A8 Patent of Importation, Dutch 1980-
A9 Patent of Importation, German 1980-
BG Bulgaria A Patent Application 2000-
B2 Granted Patent 2000-
BR Brazil

 

A Pedido de Privilegio (Patent application) 1957-1958, 1961, 1964, 1971, 1975- 09/2009
A2 Pedido de Privilegio  (Patent application) 09/2009-
D0 Patent/Utility model filing 1975-
U2 Utility Model Application 11/11/2008-
BY Belarus

 

A Patent application 1994-2001
C1 Granted patent 1988-2001
U Utility model 1999-2001

CA Canada (5)

A

Patent/Brevet

1910-

A1 Patent Application 1977-
A2 Division of Patent Application 1979-
B Reissue of Patent 1980-
C Patent 07/2007-

C2

Patent Division

07/2007-

E Reissue of Patent 1998-
CL Chile A1 Patent application 2005-2018
B Granted patent Limited, in progress
U1 Utility model Limited, in progress
Y Granted utility model Limited, in progress
CH
Switzerland

A

Patentschrift/Expose d'Invention/Exposto d'Invenzione (Main Patent/Patent of Addition unexamined)

1910-1975

A1 Patentanmeldung (Patent application with search report) 07/2008-
A2 Patentanmeldung (Patent application without search report) 07/2008-

A3

Auslegeschrift/Fascicule de la Demande/ Fascicolo dela Dommanda (Patent application, examined)

1983- 06/30/2008

A5 Patentschrift/Expose d'Invention/Exposto d'Invenzione (Patent specification - granted without preliminary examination) 1981-
B Patentschrift/Expose d'Invention/Exposto d'Invenzione (Main Patent/Patent of Addition examined) 1962-1975
B1 Patentschrift/Expose d'Invention/Exposto d'Invenzione (Assigned patent) 09/2009-

B5

Patentschrift/Expose d'Invention/Exposto d'Invenzione (Patent specification)

1975- 09/2009

CN China, Peoples Republic of
 

A Unexamined Patent Application 1985-
U Granted Utility Model Patent 04/07/2010 -
Y Granted Utility Model Patent 2006- 04/06/2010
CO Colombia A1 Patent Application 1995-
U1 Utility Model 2012-
CR Costa Rica A Patent Application 2007-
U Utility Model Application 2007-

CS
Czechoslovakia(1)

B1

Popis Vynalezu k Autorskemu Osvedceni (Inventor's Certificate)

1955-1992

B2

Popis Vynalezu k Patentu (Basic Patent)

1987-1992

B3

Popis Vynalezu k Autorskemu Osvedceni (Additional inventor's certificate)

1979-1992

B4 Additional/Dependent patent 1979

B6

Patentovy Spis (Patent specification; 1990 Law)

1991-1993

CU Cuba A3 Certificate of a patent of invention 1983-2012
A7 Application for a patent of invention for a pharmaceutical product 2005-2020
B1 Granted patent of invention 2012-2020
B7 Certificate for a patent of invention for a pharmaceutical product 2007-2012
U Utility model application 2014-2019
CY Cyprus A Granted patent 1960-1998
A1 Patent application 2008
B1 Granted patent 1998-2013
B2 Granted patent 2009-2023

CZ Czech Republic(1)

B6

Patentovy Spis (Patent specification)

1993 -

DD German Democratic Republic

A1

Patentschrift, Wirtschaftspatent (Formal examination)

1954-
A2 Patentschrift, Wirtschaftspatent (Formal examination; Additional) 1954-
A3 Patentschrift, Hauptpatent (Formal and essential examination) 1954-
A4 Patentschrift, Hauptpatent (Formal and essential examination; Additional) 1954-
A5 Patentschrift, Ausschliessungspatent (Formal examination) 1954-
A6/A7/A8 Patent, Ausschliessungspatent (Formal examination; Additional) 1954-
A9 Offengungsschrift (Document laid open - first publication) 1993-

DE Germany

A

Offenlegungsschrift (Document laid open - first publication)

1877-

A1 Offenlegungsschrift (Document laid open - first publication) 1970-
B Published patent application 1959,1963,1967-1972

B1

Auslegeschrift (Document laid open - first publication without A1)

1981-

B2 Document laid open (Second publication) 1971-1981
B3 Patentschrift (Patent - first published without A1, B1 or B2) 2004-
B4 Patentschrift (Patent - second publication after A1 or B1) 07/2007-

C1

Patentschrift (Patent specification - first published without A1, B1 or B2)

1970 -

C2 Patent specification (Second publication) 1973-1980
C3 Patent specification (Third publication) 1973-1981
U1 Gerbrauchsmusterschrift (Utility model) 1999-

DK Denmark(1)

A

Patentansogning (Patent application made available to the public)

2004-

A1 Patent Application (Published with Search Report) 12/25/2012-

B

Fremlaeggelsesskrift (Document laid open to public inspection)

1909-1993

B1 Meddett (Patent specification)  1993-
U1 Utility Model Application 2000-
U3 Utility Model Specification (without examination) 01/14/2000-
U4 Utility Model Specification (with examination) 01/14/2000-
DO Dominican Republic A Patent application 1964-
B Granted patent 2004
U Utility model 1989, 2021-
Y Granted utility model 2014-2021
EA EAPO (Eurasian Patent Organization)  B1  Patent  02/27/2007- 
EC Ecuador A Patent application 1990-2000

EE Estonia

A Patenditaotlus (Published patent application) 2000 -
EG Egypt A Patent 2000 -
EP EPO (European Patent Office)

A1

Patent Application (With search report)

1978 -

A2 Patent Application (Without search report) 1978-

ES Spain(1)

A1

Patente de Invencion (Patent of invention)

1946-1989

A1 Solicitud de Patente (Patent of invention with search report) 1987
A2 Certificado de Adicion (Certificate of addition) 1980-1989
A2 Solicitud de Patente (Patent application without search report) 1987-
A3 Patente de Importation (Patent of importation) 1980-1989
A6 Patente de Invencion (1986 Law: Patent of invention without search report) 1987-

FI Finland(1)

B

Kuulutusjulkaisu Utlaggningsskrift (Examined application)

1960-1997

FR France(2)

A

Brevet d'Invention (Old law: Patent of invention)

1900-1970

A1

Demande de Brevet d'Invention (Application for patent of invention - first publication)

1967-

A2

Demande de Certificat d'Addition (Application for certificate of addition to a patent - first publication)

1967-

A3

Demande de Certificat d'Utilite (Application for certificate of utility - first publication)

1967-

A4

Demande de Certificat d'Addition a un Certificat d'Utilite (Application for a certificate of addition to a certificate of utility - first publication)

1967-

A5 Brevet d-Invention (Patent of invention published without A1) 1967-
A6 Certificat d'Addition a un Brevet d'Invention (Certificate of addition to a patent of invention published without A2) 1967-
A7 Certificat d'Utilite (Certificate of utility published without A3) 1967-
A8 Certificat d'Addition a un Certificat d'Utilite (Certificate of addition to a certificate of utility published without A4) 1967-
E Certificat d'Addition a un Brevet d'Invention (Old law: Certificate of addition to a patent of invention) 1965-1970
F Certificat d'Addition a un Brevet Special de Medicament (Additional patent for medicament) 1965-1970

M

Brevet Special de Medicament (Special patent for medicament)

1965-1971

GB United Kingdom(3)

A

Patent Application

1901-

B

Amended Patent Specification

1975-1978

GC Gulf Cooperation Council

A Patent 2002-
GE Georgia A Patent application 2006, 2010, 2019-present
B Granted patent 1993
U Utility model application 2004, 2010, 2019-
Y Granted utility model 1999-
GR Greece A Patent Application 2000-
B1 Patent (Published without A) 2000-
GT Guatemala A Patent application / divisional patent application 1996-2010
U Utility model application / divisional utility model application 1996-2010
HK Hong Kong A2 Short-Term Patent Specification 2000-
HN Honduras A Patent application 1996-
B Granted patent 2014, 2018-
U Utility model application 1996-
Y Registered utility model 2018-
HR Croatia A2 Prijava Patenta (Patent application without search report) 2000-

HU Hungary

A1

Halasztott Talalmany Bejelentes (Unexamined patent application)

1970-1995

A1

Szabadalmi Bejelentesek Kozzetetele (1996 Law: Patent application with search report)

1996-

A2

Teljes Talalmanyi Bejelentes (Unexamined patent application)

1970-1995

A2 Szabadalmi Bejelentesek Kozzetetele (1996 Law; Patent application without search report) 1996-
B Patent Second publication 1973,1975,1976,1978, 1980,1981  
ID Indonesia A Patent application, or simple patent application Limited, in progress
B Patent, or simple patent Limited, in progress
IE Ireland A1 Patent Application 2002-
A2 Short-Term Patent Application 2002-

IL Israel

A

Patent Application

1966-

IN India A Patent Application 2004-
B Patent Specification 1948-
IP Web publication   Technical disclosure from IP.com 2001-
IR Iran B Granted 2008-
IS Iceland A Patent application 1960, 1961, 1967, 1992-
A7 Patent application 1960-1993
B Patent grant 1992-
B6 Patent grant 1960-1991

IT Italy

A1

Patent Application

2001-

B

Patent

1913-1914; 1919; 1925-1927; 1945-1972

B1 Patent (Granted) 1997; 1999-
JO Jordan A1 Patent application 2018-
B1 Granted Patent 1971-

JP Japan

A

Kokai Tokkyo Koho (Published unexamined patent application)

1971-

B

Tokkyo Koho (Examined patent application)

1916-1991

B1 Tokkyo Koho (Granted patent without prior A) 1991-

B2

Tokkyo Koho (Granted patent with preceding publication)

07/2007-

U Toroku Jitsuyo Shinan Koho (Registered utility model application) 2006-
KE Kenya A Patent application 1975-1989, 2017-
B Granted patent 2004, 2012-
D Patent application – duplicate number 1977-1987
U Utility model application 2017-
Y Granted utility model 2017-
KG Kyrgystan A Application 2015-
B Granted patent 2015-
C1 Granted patent 2002-2013
U Utility model application Limited, in progress
Y Utility model grant 2015-

KR Korea, Republic of

A

Kongkae Taeho Kongbo (Unexamined patent application)

2000-

B1

Teuk-Hu Gong-Bo (Patent specification)

1996; 1999; 2007-

U Gong-Gae Sil-Yong Sin-An Gong-Bo (Unexamined utility model) 2006-
Y1 Deung-Rok Sil-Yong Sin-An Gong-Bo (Examined utility model) 2006-
KZ Kazakhstan A Application 1999-2010, 2016
A4 Grant 2008-2016
B Grant 1993-2023
U Utility model application Limited, in progress
Y Utility model 2017-2022

LT Lithuania(1)

B

Patento Aprasymas (Patent application)

1994-

LU Luxembourg

A1

Patent Application (with search report)

2001-

A2

Patent Application (without search report)

2001-

LV Latvia(1)

B

Iszinas (Patent publication)

1994-

MA Morocco A1 Patent application 1996-
MC Monaco A Brevet d'Invention (Patent of invention) 2000-
MD Moldova A Cerere de Brevet de Inventie (Published non-examined patent application 2000-
A0, A1, A2 Patent Application (Published with/without search report) 01/31/2011-
B1 Brevet de Inventie (Published examined patent application without A publication) 2000-
F1 Brevet de Inventie Acordat (Dec. of grant without examination and without A)  2000-
G1 Unexamined Patent Specification (Granted/Applicant's Responsibility) TBD
I1 Unexamined Utility Model Specification (Registered / Applicant's Responsibility TBD
U Utility Model Application (Unexamined) 05/31/2001-
U0 Short-term Patent Application TBD
W1 Utility Model (Registered)  01/31/2000-
Y Short-term Patent (Granted) 01/31/2009-
Y1 Utility Model Application (Examined / Published) 09/30/2002-
Z1 Utility Model (Registered) 01/31/2000-
ME Montenegro A Cerere de Brevet de Inventie (Published non-examined patent application 2000-
B Granted patent 2004-
MK Macedonia A Patent 2017-
MN Mongolia A1 Patent application 1963-
A6 Inventor’s certificate 1972-1983
A8 Inventor’s certificate of addition 1984-1989
B Granted patent 1961-2019
U Utility model 2001-2019
MT Malta B Granted patent 1968-
MW Malawi A1 Patent application 1973-1994, 2012-
MX Mexico A Solicitud de Patente (Patent application) 1956, 1958, 2000-
MY Malaysia A Granted patents and utility models 2008-
NI Nicaragua A Patent application 2003-
U Utility model 2010-2019
NL Netherlands A Terinzagelegging (Patent application laid open) 1912-
A1 Inschrijving (Registered specification laid open) 1996-
NO Norway(1) B Utlegningsskrift (Document laid open for public inspection) 1907; 1909-1997
B1 Patent (1997 Law) 1997-
NZ New Zealand A Patent Application 2000-
PA Panama A1 Patent application 1996-
A2 Division Limited, in progress
U Utility model application 2017-
PE Peru A1 Patent application 1996-
Z Utility model 1996-
PH Philippines A Patent Application 2001-
A1 Application with search report 10/01/2017-
A2 Application without search report 02/12/2018-
B1  Granted Patent  10/12/2012- 
Utility Model Application  03/12/2012- 
PK Pakistan A Patent application 2008-2023
B Granted 2008, 2015-2022
PL Poland(1) A5 Opis Patentowy (Inventor Certificate) 1957-
A6 Opis Patentowy (Inventor Certificate; Addition) 1957-
B1 Opis Patentowy (Patent) 1957-
B2 Opis Patentowy Patentu Tymczasowego (Provisional patent) 1980-
B3 Opis Patentowy (Additional patent) 1980-
B4 Opis Patentowy Patentu Tymczasowego (Provisional additional patent) 1980-
PT Portugal A Fasciculo de Patente de Invencao (Application for patent of invention) 2000-
PY Paraguay A Patent application 2015, 2017-
B Granted patent 2017-
Y Utility model Limited, in progress
RD Research Disclosure     1974-2006

RO Romania

A0 Cerere de Brevet de Inventie (Patent Application) 01/28/2011-
A1 Descrierea Inventiei (Patent)  1962-1963; 1966- 

A2

Descrierea Inventiei (Inventor Certificate)

1962-1963; 1966-

A3 Descrierea Inventiei (Addition to inventor certificate) 1962-1963; 1966-
A7 Complementary description of an invention 1962-1963; 1966-
B Patent Specification 1992,1994-2004
B1 Granted patent as first publication  1980-
B3 Descrierea Inventiei (Patent - later supply of Romanian abstract)   1980-
RS Serbia A Patent application (<2012) 2006, 2007, 2008
A1 Patent application w/ search report 2022-
A2 Patent application w/o search report 2022-
B Granted patent (<2012) 2006-2008
B1 Granted patent 2021-
U Utility model (<2012) 2006, 2007, 2008
U1 Petty patent (utility model) 2022-

RU Russia

C1

Vydannyi bez Predshestvuyushchei Publikatsii Zayavki (Patent for invention)

1993-

C2

Vydannyi s Predshestvuyushchei Publikatsii Zayavki (Patent for invention - second publication)

1993-
Imperial Russia 1908, 1911-1914
Russian Applications 1918; 1920-1940; 1963-1964
SA Saudi Arabia A Patent application 2005, 2006,
B1 Granted patent 2000-2007, 2022

SE Sweden(1)

A1

Patent Application

04/13/2010-

B

Utlaeggningsskrift  (Document laid open for public inspection)

1908-1994

C2

Patentskrift (1994 Law: Granted patent)

1994-

SG Singapore

A1

Patent Application

2000-

SI Slovenia A Patent 2000-
A2 Patent s Skrajsanim Trajanjem (Short term patent) 2000-

SK Slovakia(1)

B6

Patentovy Spis (Patent)

1994-

SM San Marino A Publication of application/Publication of application for PCT transfers 2000-2015
A1 Publication of application 2017-2022
B Granted patent 2000-2017
B1 Granted patent 2015-

SU USSR

A1

Opisanie Izobreteniya k Avtorskomu Svidetel'stvu (Description of the invention for an inventor's certificate)

1940; 1943; 1945-1947; 1949-1950; 1952; 1955-1999

A2 Opisanie Izobreteniya k Avtorskomu Svidetel'stvu (Description of the invention for an inventor's certificate of addition) 1940; 1943; 1945-1947; 1949-1950; 1952; 1955-1999
A3 Opisanie Izobreteniya k Patentu (Description of the invention for a patent) 1940; 1943; 1945-1947; 1949-1950; 1952; 1955-1999
A4 Opisanie Izobreteniya k Patentu(Description of the invention for a patent of addition) 1993
SV EL Salvador A Patent application 1970-
U Utility model 2015-
TH Thailand A Patent application 1995-1999
B Patent 1996-1999
U Utility model Limited, in progress
TJ Tajikistan A Patent application 1998-2007, 2015
B Patent 1996-
U Utility model 1998-2005
Y3 Petty patent 2005-2007, 2012-2022
TN Tunisia A1 Patent application 1997-1999, 2018-
TR Turkey A1 Patent Basvurusu (Patent application with search report) 2000-
A2 Patent Basvurusu (Patent application without search report) 2000-
TT Trinidad and Tabago B Granted patent 1994-

TW Taiwan

B

Zhulanli Gongbao (Patent)

1958; 2000-

UA Ukraine A Declarative patent specification for invention 1997-
A1 Patent for invention, granted upon a USSR author’s certificate 1997-2003
C2 Patent for invention, granted upon the application, filed within the Patent Office of the USSR and for which no positive decision was taken, or Patent for invention 1993-
U Utility model 2021-

US United States

A

Granted Patent (prior to 2001)

1828-2000

A0

Published Patent Application (NTIS)

1971-

A1

Patent Application (post 2000)

2001-

B1

Granted Patent (Published without A1)

2001-
B2 Granted Patent (Published with A1) 07/2007-

E/E1

Reissue Patent

1967-

H/H1

Statutory Invention Registration

1986-

I4

Defensive Publication

1969-1987

I5 United States Patent Application (Trial Program) 1975-1976
P1 Plant Patent Application Publication 2001-
P2 Plant Patent Application Publication (Published without P1) 2001-
P3 Plant Patent Application Publication (Published with P1) 07/2007-
UY Uruguay A1 Patent application 1997-
UZ Uzbekistan B Grant 2017
C Grant 2017
U Utility model 2017
VE Venezuela A Patent application 2017-
U Utility model application 2018
Y Utility model 2018
VN Vietnam A Patent application 1997-1999
A1 Patent application 1996-1998
B Granted patent 1996-1999
U Utility model application 1996-1999
Y Granted utility model 1996-1999
YU Yugoslavia A Patent application 1973-1979

WO WIPO (World Intellectual Property Organization)4

A1

PCT International Application (With search report)

1978-

A2

PCT International Application (Without search report)

1978-

ZA South Africa

A

Patent Specification

1939; 1960; 1964-

D Patent Specification (Used to distinguish a document with the same number as one previously published) 1964-
ZM Zambia A1 Patent application 1968-
B Granted patent 2016-
ZW Zimbabwe A1 Patent for an invention 1980-

  

(1) (1) Currently, only patents issued to residents in the granting country are abstracted.CS Czechoslovakia(1) CZ Czech Republic(1) DK Denmark(1) ES Spain(1) FI Finland(1) LT Lithuania(1) LV Latvia(1) NO Norway(1) PL Poland(1) SE Sweden(1) SK Slovakia(1)
(2) The French (FR) patent material in this product/service is made available from Institute National de la Propriete Industrielle (INPI).
(3) The UK patent material in this product/service is UK Crown copyright and is made available with permission. (C) Crown Copyright
(4) The World (WO) patent material in this product/service is made available from the World Intellectual Property Organization (WIPO). WIPO bears no responsibility for the integrity or accuracy of the data contained herein, in particular due, but not limited, to any deletion, manipulation, or reformatting of data that may have occurred beyond its control.
(5) Contains data licensed by Her Majesty the Queen in right of Canada, as represented by the Minister of Industry, the minister responsible for the administration of the Canadian Intellectual Property Office.