PCT Applicant’s Guide – International Phase – Annex A
A
Date on which State
became bound
by the PCT1
Two-letter code
and name of State
DM Dominica . . . . . . . . . . . . 7 August 1999
DO Dominican Republic . . . . . . 28 May 2007
DZ Algeria2 . . . . . . . . . . . . . . 8 March 2000
AE
AG
AL
AM
United Arab Emirates
Antigua and Barbuda
Albania . . . . . . . . . .
Armenia2 . . . . . . . . .
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. . . 10 March 1999
. . . 17 March 2000
. . 4 October 1995
25 December 1991
AO
AT
AU
AZ
BA
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27 December 2007
. . . . 23 April 1979
. . . 31 March 1980
25 December 1995
BB
BE
BF
BG
BH
Angola . . . . .
Austria . . . . .
Australia . . . .
Azerbaijan . . .
Bosnia and
Herzegovina .
Barbados . . .
Belgium . . . .
Burkina Faso .
Bulgaria . . . .
Bahrain2 . . . .
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7 September 1996
. . . 12 March 1985
14 December 1981
. . . 21 March 1989
. . . . 21 May 1984
. . . 18 March 2007
BJ
BN
BR
BW
BY
Benin . . . . . . . . . .
Brunei Darussalam .
Brazil . . . . . . . . . .
Botswana . . . . . . .
Belarus2 . . . . . . . .
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. 26 February 1987
. . . . 24 July 2012
. . . . . 9 April 1978
. . 30 October 2003
25 December 1991
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. . . . . . . . . 17 June 2000
. . . . . . . 2 January 1990
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24 January 1978
24 January 1978
24 January 1978
. . 30 April 1991
. . 2 June 2009
CM Cameroon . . . . . . . . . . . 24 January 1978
CN China3, 4 . . . . . . . . . . . . 1 January 1994
CO Colombia . . . . . . . . . . 28 February 2001
CR Costa Rica . . . . . . . . . . . 3 August 1999
CU Cuba2 . . . . . . . . . . . . . . . . 16 July 1996
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EC
EE
EG
ES
FI
Ecuador .
Estonia. .
Egypt . . .
Spain . . .
Finland5 .
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Date on which State
became bound
by the PCT1
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. . . . . 7 May 2001
. . 24 August 1994
. 6 September 2003
16 November 1989
. . . 1 October 1980
FR France2, 6 . . . . . . . . . . 25 February 1978
BZ Belize . . . . . . .
CA Canada. . . . . .
CF Central African
Republic . . . . .
CG Congo . . . . . .
CH Switzerland . . .
CI Côte d’Ivoire . .
CL Chile2 . . . . . . .
Cyprus . .
Czechia .
Germany .
Djibouti . .
Denmark .
A
PCT Contracting States1
Two-letter code
and name of State
CY
CZ
DE
DJ
DK
Page 1
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. . . . . . 1 April 1998
. . . 1 January 1993
. . . 24 January 1978
23 September 2016
. . 1 December 1978
GA Gabon . . . . . . . . . . . . 24 January 1978
GB United Kingdom7, 8 . . . . . 24 January 1978
GD Grenada . . . . . . . . . . 22 September 1998
GE Georgia2 . . . . . . . . . . 25 December 1991
GH
GM
GN
GQ
GR
GT
GW
HN
HR
HU
Ghana . . . . . . . .
Gambia . . . . . . .
Guinea . . . . . . . .
Equatorial Guinea
Greece . . . . . . . .
Guatemala . . . . .
Guinea-Bissau. . .
Honduras . . . . . .
Croatia . . . . . . . .
Hungary2 . . . . . .
ID
Indonesia2 . . . . . . . . . 5 September 1997
IE
IL
IN
Ireland . . . . . . . . . . . . . . 1 August 1992
Israel . . . . . . . . . . . . . . . . . 1 June 1996
India2 . . . . . . . . . . . . . 7 December 1998
IR
Iran
(Islamic Republic of) .
Iceland . . . . . . . . . .
Italy . . . . . . . . . . . .
Jordan . . . . . . . . . .
Japan . . . . . . . . . .
Kenya . . . . . . . . . .
Kyrgyzstan2 . . . . . .
IS
IT
JO
JP
KE
KG
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26 February 1997
9 December 1997
. . . 27 May 1991
. . . . 17 July 2001
. . 9 October 1990
. 14 October 2006
12 December 1997
. . . . 20 June 2006
. . . . . 1 July 1998
. . . . 27 June 1980
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. . 4 October 2013
. . 23 March 1995
. . 28 March 1985
. . . . 9 June 2017
. . 1 October 1978
. . . . 8 June 1994
25 December 1991
KH Cambodia . . . . . . . . . . 8 December 2016
KM Comoros . . . . . . . . . . . . . . 3 April 2005
26 October 2020
PCT Applicant’s Guide – International Phase – Annex A
Page 2
PCT Contracting States1
A
A
[Continued]
Two-letter code
and name of State
Date on which State
became bound
by the PCT1
KN Saint Kitts and Nevis . . . . 27 October 2005
KP Democratic People’s Republic
of Korea . . . . . . . . . . . . . . . 8 July 1980
KR Republic of Korea . . . . . . 10 August 1984
KW Kuwait . . . . . . . . . . . 9 September 2016
KZ Kazakhstan2 . . . . . . . 25 December 1991
LA Lao People’s Democratic
Republic2 . . . . . . . . . . . . . 14 June 2006
LC Saint Lucia2 . . . . . . . . . . 30 August 1996
LI
LK
LR
LS
LT
LU
LV
LY
MA
MC
MD
Liechtenstein .
Sri Lanka . . .
Liberia . . . . .
Lesotho . . . .
Lithuania . . . .
Luxembourg .
Latvia . . . . . .
Libya . . . . . .
Morocco . . . .
Monaco . . . .
Republic of
Moldova2. . . .
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. . 19 March 1980
26 February 1982
. 27 August 1994
. 21 October 1995
. . . . 5 July 1994
. . . 30 April 1978
7 September 1993
15 September 2005
. . . 8 October 1999
. . . . . 22 June 1979
Two-letter code
and name of State
Date on which State
became bound
by the PCT1
NZ New Zealand . . . . . . . . 1 December 1992
OM Oman2 . . . . . . . . . . . . . 26 October 2001
PA
PE
PG
PH
PL
Panama . . . . . . . .
Peru . . . . . . . . . .
Papua New Guinea
Philippines . . . . . .
Poland5 . . . . . . . .
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7 September 2012
. . . . 6 June 2009
. . . 14 June 2003
. 17 August 2001
25 December 1990
PT Portugal . . . . . . . . . . 24 November 1992
QA Qatar2 . . . . . . . . . . . . . . 3 August 2011
RO Romania2 . . . . . . . . . . . . . . 23 July 1979
RS Serbia10 . . . . . . . . . . . . 1 February 1997
RU Russian Federation2 . . . . 29 March 197811
RW
SA
SC
SD
SE
Rwanda . . . .
Saudi Arabia .
Seychelles . .
Sudan . . . . .
Sweden5. . . .
MW Malawi . . . . . . . . . . . . . 24 January 1978
MX Mexico . . . . . . . . . . . . . 1 January 1995
MY Malaysia2 . . . . . . . . . . . 16 August 2006
SG
SI
SK
SL
SM
SN
ST
SV
SY
SZ
TD
TG
TH
Singapore . . . . . . . . . . 23 February 1995
Slovenia . . . . . . . . . . . . . . 1 March 1994
Slovakia . . . . . . . . . . . . . 1 January 1993
Sierra Leone . . . . . . . . . . . 17 June 1997
San Marino . . . . . . . . 14 December 2004
Senegal . . . . . . . . . . . . 24 January 1978
Sao Tome and Principe . . . . . 3 July 2008
El Salvador . . . . . . . . . . 17 August 2006
Syrian Arab Republic . . . . . 26 June 2003
Eswatini . . . . . . . . . . 20 September 1994
Chad . . . . . . . . . . . . . . 24 January 1978
Togo . . . . . . . . . . . . . . 24 January 1978
Thailand2 . . . . . . . . . 24 December 2009
MZ Mozambique2. . . . . . . . . . . 18 May 2000
TJ
Tajikistan2 . . . . . . . . . 25 December 1991
NA
NE
NG
NI
NL
TM Turkmenistan2 . . . . . . 25 December 1991
ME
MG
MK
ML
MN
MR
MT
. . . . . . 25 December 1991
Montenegro . . . .
Madagascar . . .
North Macedonia
Mali . . . . . . . . .
Mongolia . . . . . .
Mauritania . . . . .
Malta2 . . . . . . . .
Namibia . . .
Niger . . . . .
Nigeria . . . .
Nicaragua . .
Netherlands9
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. . 3 June 2006
24 January 1978
10 August 1995
19 October 1984
. . 27 May 1991
. . 13 April 1983
. . 1 March 2007
1 January 2004
. 21 March 1993
. . . 8 May 2005
. . 6 March 2003
. . 10 July 1979
NO Norway5 . . . . . . . . . . . . 1 January 1980
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. 31 August 2011
. . 3 August 2013
7 November 2002
. . . 16 April 1984
. . . 17 May 1978
TN Tunisia2 . . . . . . . . . . 10 December 2001
TR Turkey . . . . . . . . . .
TT Trinidad and Tobago
TZ United Republic of
Tanzania . . . . . . . .
UA Ukraine2 . . . . . . . . .
. . . . 1 January 1996
. . . . 10 March 1994
. 14 September 1999
. 25 December 1991
26 October 2020
PCT Applicant’s Guide – International Phase – Annex A
A
PCT Contracting States1
Page 3
A
[Continued]
Two-letter code
and name of State
Date on which State
became bound
by the PCT1
Two-letter code
and name of State
Date on which State
became bound
by the PCT1
UG Uganda. . . . . . . . . . . . . 9 February 1995
US United States of
America12, 13 . . . . . . . . . 24 January 1978
VN Viet Nam . . . . . . . . . . . . 10 March 1993
WS Samoa2 . . . . . . . . . . . . . 2 January 2020
ZA South Africa2 . . . . . . . . . . 16 March 1999
UZ Uzbekistan2 . . . . . . . . 25 December 1991
ZM Zambia. . . . . . . . . . . 15 November 2001
ZW Zimbabwe. . . . . . . . . . . . . 11 June 1997
VC Saint Vincent and
the Grenadines2 . . . . . . . . 6 August 2002
(Total: 153 States)
1
2
3
4
5
6
7
8
9
10
11
12
13
All PCT Contracting States are bound by Chapter II of the PCT relating to the international preliminary examination.
With the declaration provided for in PCT Article 64(5).
Applies also to Hong Kong, China with effect from 1 July 1997.
Not applicable to Macau, China.
With the declaration provided for in PCT Article 64(2)(a)(ii).
Including all Overseas Departments and Territories.
The United Kingdom extended the application of the PCT to the Isle of Man with effect from 29 October 1983.
With effect from 1 January 2021, the United Kingdom will extend the application of the PCT to the territory of Gibraltar.
Ratification for the Kingdom in Europe, the Netherlands Antilles and Aruba. The Netherlands Antilles ceased to exist
on 10 October 2010. As from that date, the PCT continues to apply to Curaçao and Sint Maarten. The PCT also
continues to apply to the islands of Bonaire, Sint Eustatius and Saba which, with effect from 10 October 2010, have
become part of the territory of the Kingdom of the Netherlands in Europe.
Serbia is the continuing State from Serbia and Montenegro as from 3 June 2006.
Date of ratification of the Soviet Union, continued by the Russian Federation as from 25 December 1991.
With the declarations provided for in PCT Articles 64(3)(a) and 64(4)(a).
Extends to all areas for which the United States of America has international responsibility.
26 October 2020