WIPO Lex

No	Notification Title	Treaty	Notification Date
224	Amendments to the Regulations	Patent Cooperation Treaty	November 9, 2023
223	Accession by the Republic of Mauritius	Patent Cooperation Treaty	December 15, 2022
222	Accession by the Republic of Cabo Verde	Patent Cooperation Treaty	April 6, 2022
221	Amendments to the Regulations	Patent Cooperation Treaty	February 1, 2022
220	Accession by the Republic of Iraq	Patent Cooperation Treaty	January 31, 2022
219	Accession by Jamaica	Patent Cooperation Treaty	November 10, 2021
218	Declarations by the United Kingdom of Great Britain and Northern Ireland	Patent Cooperation Treaty	December 23, 2020
217	Declarations by the United Kingdom of Great Britain and Northern Ireland	Patent Cooperation Treaty	October 1, 2020
216	Amendments to the Regulations	Patent Cooperation Treaty	January 31, 2020
215	Accession by the Independent State of Samoa	Patent Cooperation Treaty	October 2, 2019
214	Amendments to the Regulations	Patent Cooperation Treaty	January 30, 2019
213	Amendments to the Regulations	Patent Cooperation Treaty	January 29, 2018
212	Accession by the Hashemite Kingdom of Jordan	Patent Cooperation Treaty	March 9, 2017
211	Amendments to the Regulations	Patent Cooperation Treaty	January 16, 2017
210	Accession by the Kingdom of Cambodia	Patent Cooperation Treaty	September 8, 2016
209	Accession by the Republic of Djibouti	Patent Cooperation Treaty	June 23, 2016
208	Accession by the State of Kuwait	Patent Cooperation Treaty	June 9, 2016
207	Amendments to the Regulations	Patent Cooperation Treaty	February 16, 2016
206	Amendments to the Regulations	Patent Cooperation Treaty	January 29, 2015
205	Amendments to the Regulations	Patent Cooperation Treaty	January 17, 2014
204	Ratification by the Islamic Republic of Iran	Patent Cooperation Treaty	July 4, 2013
203	Accession by the Kingdom of Saudi Arabia	Patent Cooperation Treaty	May 3, 2013
202	Amendments to the Regulations	Patent Cooperation Treaty	December 12, 2012
201	Accession by the Republic of Panama	Patent Cooperation Treaty	June 7, 2012
200	Accession by Brunei Darussalam	Patent Cooperation Treaty	April 24, 2012
199	Amendments to the Regulations	Patent Cooperation Treaty	December 8, 2011
198	Accession by the Republic of Rwanda	Patent Cooperation Treaty	May 31, 2011
197	Accession by the State of Qatar	Patent Cooperation Treaty	May 3, 2011
196	Amendments to the Regulations	Patent Cooperation Treaty	December 14, 2010
195	Amendments to the Regulations	Patent Cooperation Treaty	December 18, 2009
194	Accession by the Kingdom of Thailand	Patent Cooperation Treaty	September 24, 2009
193	Accession by the Republic of Peru	Patent Cooperation Treaty	March 6, 2009
192	Accession by the Republic of Chile	Patent Cooperation Treaty	March 2, 2009
191	Amendments to the Regulations	Patent Cooperation Treaty	December 2, 2008
190	Amendments to the Regulations	Patent Cooperation Treaty	July 29, 2008
189	Amendments to the Schedule of Fees annexed to the Regulations	Patent Cooperation Treaty	June 4, 2008
188	Accession by the Democratic Republic of Sao Tome and Principe	Patent Cooperation Treaty	April 3, 2008
187	Amendments to the Regulations	Patent Cooperation Treaty	March 17, 2008
186	Accession by the Republic of Angola	Patent Cooperation Treaty	September 27, 2007
185	Accession by the Dominican Republic	Patent Cooperation Treaty	February 28, 2007
184	Accession by the Kingdom of Bahrain	Patent Cooperation Treaty	December 18, 2006
183	Declaration by the Republic of Montenegro	Patent Cooperation Treaty	December 4, 2006
182	Accession by the Republic of Malta	Patent Cooperation Treaty	December 1, 2006
181	Amended Schedule of Fees Annexed to the Regulations	Patent Cooperation Treaty	November 3, 2006
180	Amendments to the Regulations	Patent Cooperation Treaty	November 3, 2006
179	Declaration by the Republic of Serbia	Patent Cooperation Treaty	September 19, 2006
178	Accession by the Republic of Guatemala	Patent Cooperation Treaty	July 14, 2006
177	Amendments to the Regulations	Patent Cooperation Treaty	June 7, 2006
176	Accession by the Republic of El Salvador	Patent Cooperation Treaty	May 17, 2006
175	Accession by Malaysia	Patent Cooperation Treaty	May 16, 2006
174	Accession by the Republic of Honduras	Patent Cooperation Treaty	March 20, 2006
173	Accession by the Lao People's Democratic Republic	Patent Cooperation Treaty	March 14, 2006
172	Amendments to the Regulations	Patent Cooperation Treaty	December 16, 2005
171	Accession by Saint Kitts and Nevis	Patent Cooperation Treaty	July 27, 2005
170	Accession by the Socialist People's Libyan Arab Jamahiriya	Patent Cooperation Treaty	June 15, 2005
169	Accession by the Federal Republic of Nigeria	Patent Cooperation Treaty	February 8, 2005
168	Amendments to the Regulations	Patent Cooperation Treaty	January 14, 2005
167	Accession by the Union of the Comoros	Patent Cooperation Treaty	January 3, 2005
166	Accession by the Republic of San Marino	Patent Cooperation Treaty	September 14, 2004
165	Amendments to the Regulations	Patent Cooperation Treaty	November 6, 2003
164	Accession by the Republic of Namibia	Patent Cooperation Treaty	October 1, 2003
163	Accession by the Republic of Botswana	Patent Cooperation Treaty	July 30, 2003
162	Ratification by the Arab Republic of Egypt	Patent Cooperation Treaty	June 6, 2003
161	Ratification by the Syrian Arab Republic	Patent Cooperation Treaty	March 26, 2003
160	Accession by Papua New Guinea	Patent Cooperation Treaty	March 14, 2003
159	Amendments to the Regulations	Patent Cooperation Treaty	February 14, 2003
158	Accession by the Republic of Nicaragua	Patent Cooperation Treaty	December 6, 2002
157	Amendments to the Regulations	Patent Cooperation Treaty	November 22, 2002
156	Amended Schedule of Fees Annexed to the Regulations	Patent Cooperation Treaty	October 25, 2002
155	Accession by the Republic of Seychelles	Patent Cooperation Treaty	August 7, 2002
154	Accession by Saint Vincent and the Grenadines	Patent Cooperation Treaty	May 6, 2002
153	Modifications of Article 22 of the Patent Cooperation Treaty (PCT), Amendments of the Regulations Under the PCT and Decisions Relating to Entry into Force and Transitional Arrangements	Patent Cooperation Treaty	December 17, 2001
152	Amended Schedule of Fees Annexed to the Regulations	Patent Cooperation Treaty	November 20, 2001
151	Accession by the Republic of Tunisia	Patent Cooperation Treaty	September 10, 2001
150	Accession by the Republic of Zambia	Patent Cooperation Treaty	August 15, 2001
149	Accession by the Sultanate of Oman	Patent Cooperation Treaty	July 26, 2001
148	Ratification by the Republic of the Philippines	Patent Cooperation Treaty	May 17, 2001
147	Accession by the Republic of Equatorial Guinea	Patent Cooperation Treaty	April 17, 2001
146	Accession by the Republic of Ecuador	Patent Cooperation Treaty	February 7, 2001
145	Accession by the Republic of Colombia	Patent Cooperation Treaty	November 29, 2000
144	Amended Schedule of Fees Annexed to the Regulations	Patent Cooperation Treaty	November 1, 2000
143	Non-Application of the Madrid Agreement, the Madrid Protocol and the PCT to the Macau Special Administrative Region	Patent Cooperation Treaty	July 12, 2000
142	Amendments to the Regulations	Patent Cooperation Treaty	July 7, 2000
141	Accession by Belize	Patent Cooperation Treaty	March 17, 2000
140	Accession by the Republic of Mozambique	Patent Cooperation Treaty	February 18, 2000
139	Accession by Antigua and Barbuda	Patent Cooperation Treaty	December 17, 1999
138	Ratification by the People's Democratic Republic of Algeria	Patent Cooperation Treaty	December 8, 1999
137	Amendments to the Regulations	Patent Cooperation Treaty	November 5, 1999
136	Accession by the Kingdom of Morocco	Patent Cooperation Treaty	July 8, 1999
135	Accession by the United Republic of Tanzania	Patent Cooperation Treaty	June 14, 1999
134	Accession by the Commonwealth of Dominica	Patent Cooperation Treaty	May 7, 1999
133	Accession by the Republic of Costa Rica	Patent Cooperation Treaty	May 3, 1999
132	Accession by the Republic of South Africa	Patent Cooperation Treaty	December 16, 1998
131	Accession by the United Arab Emirates	Patent Cooperation Treaty	December 10, 1998
130	Amended Schedule of Fees Annexed to the Regulations	Patent Cooperation Treaty	November 9, 1998
129	Accession by the Republic of India	Patent Cooperation Treaty	September 7, 1998
128	Accession by Grenada	Patent Cooperation Treaty	June 22, 1998
127(A)	Ratification by the Republic of Croatia - Corrigendum	Patent Cooperation Treaty	April 1, 1998
127	Accession by the Republic of Croatia	Patent Cooperation Treaty	April 1, 1998
126	Accession by the Republic of Cyprus	Patent Cooperation Treaty	January 1, 1998
125(A)	Table of Amendments to the Regulations - Corrigendum	Patent Cooperation Treaty	May 13, 1998
125	Amendments to the Regulations	Patent Cooperation Treaty	December 19, 1997
124	Accession by the Republic of Guinea-Bissau	Patent Cooperation Treaty	September 12, 1997
123	Accession by the Republic of the Gambia	Patent Cooperation Treaty	September 9, 1997
122	Cessation of Responsibility of the United Kingdom, from July 1, 1997, for International Rights and Obligations Arising from the Application of the Patent Cooperation Treaty to Hong Kong	Patent Cooperation Treaty	June 23, 1997
121	Application of the Patent Cooperation Treaty, with effect from July 1, 1997, to the Hong Kong Special Administrative Region	Patent Cooperation Treaty	June 10, 1997
120	Withdrawal by the Kingdom of Spain of its Declaration Concerning Chapter II	Patent Cooperation Treaty	June 6, 1997
119	Accession by the Republic of Indonesia	Patent Cooperation Treaty	June 5, 1997
118	Accession by the Republic of Sierra Leone	Patent Cooperation Treaty	March 17, 1997
117	Accession by the Republic of Zimbabwe	Patent Cooperation Treaty	March 11, 1997
116	Accession by the Republic of Ghana	Patent Cooperation Treaty	November 26, 1996
115	Ratification by the Federal Republic of Yugoslavia	Patent Cooperation Treaty	November 4, 1996
114	Accession by the Republic of Bosnia and Herzegovina	Patent Cooperation Treaty	June 11, 1996
113	Withdrawal by the Hellenic Republic of its Declaration Concerning Chapter II	Patent Cooperation Treaty	June 11, 1996
112	Accession by Saint Lucia	Patent Cooperation Treaty	June 11, 1996
111	Accession by the Republic of Cuba	Patent Cooperation Treaty	April 22, 1996
110	Ratification by the State of Israel	Patent Cooperation Treaty	March 1, 1996
109	Amended Schedule of Fees Annexed to the Regulations	Patent Cooperation Treaty	December 5, 1995
108	Accession by the Republic of Turkey	Patent Cooperation Treaty	October 1, 1995
107	Accession by the Azerbaijani Republic	Patent Cooperation Treaty	September 25, 1995
106	Accession by the Kingdom of Lesotho	Patent Cooperation Treaty	July 21, 1995
105	Accession by the Republic of Albania	Patent Cooperation Treaty	July 4, 1995
104	Withdrawal by the Principality of Liechtenstein of its Declaration Concerning Chapter II	Patent Cooperation Treaty	June 6, 1995
103	Withdrawal by the Swiss Confederation of its Declaration Concerning Chapter II	Patent Cooperation Treaty	June 6, 1995
102	Accession by the former Yugoslav Republic of Macedonia	Patent Cooperation Treaty	May 10, 1995
101	Declaration by Turkmenistan	Patent Cooperation Treaty	March 1, 1995
100	Accession by the Republic of Iceland	Patent Cooperation Treaty	January 9, 1995
99	Accession by the Republic of Singapore	Patent Cooperation Treaty	November 23, 1994
98	Accession by the Republic of Uganda	Patent Cooperation Treaty	November 9, 1994
97	Accession by the United Mexican States	Patent Cooperation Treaty	October 1, 1994
96	Accession by the Kingdom of Swaziland	Patent Cooperation Treaty	June 20, 1994
95	Accession by the Republic of Liberia	Patent Cooperation Treaty	May 27, 1994
94	Accession by the Republic of Estonia	Patent Cooperation Treaty	May 24, 1994
93	Declaration by the Republic of Armenia	Patent Cooperation Treaty	May 18, 1994
92	Withdrawal by the Republic of Bulgaria of its Declaration Under Article 64(5)	Patent Cooperation Treaty	May 9, 1994
91	Accession by the Republic of Lithuania	Patent Cooperation Treaty	April 5, 1994
90	Accession by the Republic of Kenya	Patent Cooperation Treaty	March 11, 1994
89	Declaration by the Republic of Tajikistan	Patent Cooperation Treaty	February 14, 1994
88	Declaration by the Kyrgyz Republic	Patent Cooperation Treaty	February 14, 1994
87	Declaration by the Republic of Moldova	Patent Cooperation Treaty	February 14, 1994
86	Declaration by the Republic of Georgia	Patent Cooperation Treaty	January 18, 1994
85	Accession by the Republic of Trinidad and Tobago	Patent Cooperation Treaty	December 13, 1993
84	Withdrawal by the Republic of Poland of its Declaration Made Under Article 64(2)(a)(i)	Patent Cooperation Treaty	December 6, 1993
83	Accession by the Republic of Slovenia	Patent Cooperation Treaty	December 3, 1993
82	Amendments to the Regulations	Patent Cooperation Treaty	November 12, 1993
81	Accession by the People's Republic of China	Patent Cooperation Treaty	October 1, 1993
80	Declaration by the Republic of Uzbekistan	Patent Cooperation Treaty	August 18, 1993
79	Accession by the Republic of Latvia	Patent Cooperation Treaty	June 7, 1993
78	Declaration by the Republic of Belarus	Patent Cooperation Treaty	April 22, 1993
77	Declaration by the Republic of Kazakhstan	Patent Cooperation Treaty	February 16, 1993
76	Declaration by the Slovak Republic	Patent Cooperation Treaty	January 6, 1993
75	Accession by the Republic of the Niger	Patent Cooperation Treaty	December 21, 1992
74	Declaration by the Czech Republic	Patent Cooperation Treaty	December 21, 1992
73	Accession by the Socialist Republic of Viet Nam	Patent Cooperation Treaty	December 11, 1992
72	Amendments to the Regulations	Patent Cooperation Treaty	November 20, 1992
71	Declaration by Ukraine	Patent Cooperation Treaty	September 23, 1992
70	Accession by New Zealand	Patent Cooperation Treaty	September 4, 1992
69	Situation after the Accession of the German Democratic Republic to the Federal Republic of Germany	Patent Cooperation Treaty	August 31, 1992
68	Accession by the Portuguese Republic	Patent Cooperation Treaty	August 24, 1992
67	Ratification by Ireland	Patent Cooperation Treaty	May 4, 1992
66	Communication by the Russian Federation	Patent Cooperation Treaty	January 20, 1992
65	Amendments to the Schedule of Fees Annexed to the Regulations	Patent Cooperation Treaty	December 13, 1991
64	Amendments to the Regulations	Patent Cooperation Treaty	December 13, 1991
63	Accession by the Czech and Slovak Federal Republic	Patent Cooperation Treaty	March 21, 1991
62	Accession by the Mongolian People's Republic	Patent Cooperation Treaty	March 1, 1991
61	Accession by the Republic of Guinea	Patent Cooperation Treaty	March 1, 1991
60	Ratification by the Republic of Côte d'Ivoire	Patent Cooperation Treaty	February 4, 1991
59	Accession by the Republic of Poland	Patent Cooperation Treaty	September 25, 1990
58	Accession by the Hellenic Republic	Patent Cooperation Treaty	July 9, 1990
57	Withdrawal by the Republic of Korea of its Declaration Concerning Chapter II	Patent Cooperation Treaty	June 1, 1990
56	Ratification by Canada	Patent Cooperation Treaty	October 2, 1989
55	Accession by the Kingdom of Spain	Patent Cooperation Treaty	August 21, 1989
54	Accession by Burkina Faso	Patent Cooperation Treaty	December 22, 1988
53	Notification by the Kingdom of Norway: Withdrawal of Declaration Made Under Article 64(1)(a) concerning Chapter II; Declaration Under Article 64(2)(a)(ii)	Patent Cooperation Treaty	October 7, 1988
52	Withdrawal by the Kingdom of Denmark of its Declaration concerning Chapter II	Patent Cooperation Treaty	August 8, 1988
51	Withdrawal by Japan of its Declaration made pursuant to Article 64(2)(a)	Patent Cooperation Treaty	September 15, 1987
50	Withdrawal by the United States of America of its Declaration Concerning Chapter II	Patent Cooperation Treaty	April 1, 1987
49	Accession by the People's Republic of Benin	Patent Cooperation Treaty	November 26, 1986
48	Application to Aruba	Patent Cooperation Treaty	August 8, 1986
47	Ratification by the Italian Republic	Patent Cooperation Treaty	January 9, 1985
46	Accession by Barbados	Patent Cooperation Treaty	December 12, 1984
45	Accession by the Republic of Mali	Patent Cooperation Treaty	August 6, 1984
44	Accession by the Republic of Korea	Patent Cooperation Treaty	May 14, 1984
43	Entry Into Force of Amendments to Articles 53(11) and 54(6)(a)	Patent Cooperation Treaty	April 6, 1984
42	Accession by the People's Republic of Bulgaria	Patent Cooperation Treaty	February 23, 1984
41	Accession by the Democratic Republic of the Sudan	Patent Cooperation Treaty	January 16, 1984
40	Application to the Isle of Man	Patent Cooperation Treaty	July 29, 1983
39	Accession by the Islamic Republic of Mauritania	Patent Cooperation Treaty	January 14, 1983
38	Withdrawal by the Grand Duchy of Luxembourg of its Declaration Concerning Chapter II	Patent Cooperation Treaty	December 24, 1981
37	Accession by the Democratic Socialist Republic of Sri Lanka	Patent Cooperation Treaty	December 3, 1981
36	Ratification by the Kingdom of Belgium	Patent Cooperation Treaty	September 15, 1981
35	Withdrawal by the Republic of France of its Declaration Concerning Chapter II	Patent Cooperation Treaty	March 19, 1981
34	Application to the Territory of Hong Kong	Patent Cooperation Treaty	January 15, 1981
33	Ratification by the Republic of Finland	Patent Cooperation Treaty	July 4, 1980
32	Accession by the Democratic People's Republic of Korea	Patent Cooperation Treaty	April 10, 1980
31	Ratification by the Hungarian People's Republic	Patent Cooperation Treaty	March 28, 1980
30	Accession by the Commonwealth of Australia	Patent Cooperation Treaty	January 7, 1980
29	Accession by the Principality of Liechtenstein	Patent Cooperation Treaty	December 20, 1979
28	Ratification by the Kingdom of Norway	Patent Cooperation Treaty	October 4, 1979
27	Ratification by the Socialist Republic of Romania	Patent Cooperation Treaty	April 30, 1979
26	Ratification by the Kingdom of the Netherlands	Patent Cooperation Treaty	April 19, 1979
25	Ratification by the Principality of Monaco	Patent Cooperation Treaty	March 23, 1979
24	Ratification by the Republic of Austria	Patent Cooperation Treaty	January 24, 1979
23	Ratification by the Kingdom of Denmark	Patent Cooperation Treaty	September 12, 1978
22	Ratification by Japan	Patent Cooperation Treaty	July 1, 1978
21	Declaration by the United States of America under Article 64(4)(a)	Patent Cooperation Treaty	March 17, 1978
20	Ratification by the Kingdom of Sweden	Patent Cooperation Treaty	February 20, 1978
19	Ratification by the Grand Duchy of Luxembourg	Patent Cooperation Treaty	February 1, 1978
18	Ratification by the Federative Republic of Brazil	Patent Cooperation Treaty	January 11, 1978
17	Applicability of Chapter II	Patent Cooperation Treaty	January 6, 1978
16	Ratification by the Union of Soviet Socialist Republics	Patent Cooperation Treaty	January 6, 1978
15	Ratification by the French Republic	Patent Cooperation Treaty	December 1, 1977
14	Entry Into Force	Patent Cooperation Treaty	October 31, 1977
13	Ratification by the United Kingdom of Great Britain and Northern Ireland	Patent Cooperation Treaty	October 31, 1977
12	Ratification by the Swiss Confederation	Patent Cooperation Treaty	September 15, 1977
11	Accession of the People's Republic of the Congo	Patent Cooperation Treaty	August 16, 1977
10	Ratification by the Federal Republic of Germany	Patent Cooperation Treaty	July 20, 1976
9	Ratification by the United States of America	Patent Cooperation Treaty	December 1, 1975
8	Accession of the Gabonese Republic	Patent Cooperation Treaty	March 10, 1975
7	Ratification by the Togolese Republic	Patent Cooperation Treaty	January 30, 1975
6	Accession of the Republic of Chad	Patent Cooperation Treaty	February 18, 1974
5	Accession of the United Republic of Cameroon	Patent Cooperation Treaty	March 23, 1973
4	Accession of the Republic of Malawi	Patent Cooperation Treaty	May 25, 1972
3	Ratification by the Republic of Madagascar	Patent Cooperation Treaty	April 5, 1972
2	Ratification by the Republic of Senegal	Patent Cooperation Treaty	March 13, 1972
1	Accession of the Central African Republic	Patent Cooperation Treaty	September 17, 1971

WIPO-Administered Treaties