A | B | C | D | E | F | G | H | I | J | K | L | M | N | O | P | Q | R | S | T | U | V | W | X | Z
A
International Phase
National Phase
Two-Letter Code plus Country or Organization
General Information
Receiving Offices
International Searching Authorities (ISA)
ISA(Supplementary Search)
International Preliminary Examining Authorities
Deposits of Biological Material
National Chapter
Code
Annex B
Annex C
Annex D
Annex SISA
Annex E
Annex L
Annex
AE
United Arab Emirates
X
X
X
AE
AG
Antigua and Barbuda
X
X
X
AG
AL
Albania
X
X
X
X
AL
AM
Armenia
X
X
X
AM
AO
Angola
X
X
X
AO
AP
African Regional Intellectual Property Organization
X
X
X
X
AP
AT
Austria
X
X
X
X
X
X
X
AT
AU
Australia
X
X
X
X
X
X
AU
AZ
Azerbaijan
X
X
X
AZ
A | B | C | D | E | F | G | H | I | J | K | L | M | N | O | P | Q | R | S | T | U | V | W | X | Z
B
International Phase
National Phase
Two-Letter Code plus Country or Organization
General Information
Receiving Offices
International Searching Authorities (ISA)
ISA(Supplementary Search)
International Preliminary Examining Authorities
Deposits of Biological Material
National Chapter
Code
Annex B
Annex C
Annex D
Annex SISA
Annex E
Annex L
Annex
BA
Bosnia & Herzegovina
X
X
X
X
BA
BB
Barbados
X
X
X
BB
BE
Belgium
X
X
BE
BF
Burkina Faso
X
X
BF
BG
Bulgaria
X
X
X
X
BG
BH
Bahrain
X
X
X
BH
BJ
Benin
X
X
BJ
BN
Brunei Darussalam
X
X
X
X
BN
BR
Brazil
X
X
X
X
X
X
BR
BW
Botswana
X
X
X
BW
BY
Belarus
X
X
X
X
BY
BZ
Belize
X
X
X
BZ
A | B | C | D | E | F | G | H | I | J | K | L | M | N | O | P | Q | R | S | T | U | V | W | X | Z
C
International Phase
National Phase
Two-Letter Code plus Country or Organization
General Information
Receiving Offices
International Searching Authorities (ISA)
ISA(Supplementary Search)
International Preliminary Examining Authorities
Deposits of Biological Material
National Chapter
Code
Annex B
Annex C
Annex D
Annex SISA
Annex E
Annex L
Annex
CA
Canada
X
X
X
X
X
X
CA
CF
Central African Republic
X
X
CF
CG
Congo
X
X
CG
CH
Switzerland
X
X
X
X
CH
CI
Côte d'Ivoire
X
X
CI
CL
Chile
X
X
X
X
X
X
CL
CM
Cameroon
X
X
CM
CN
China
X
X
X
X
X
X
CN
CO
Colombia
X
X
X
X
CO
CR
Costa Rica
X
X
X
CR
CU
Cuba
X
X
X
X
CU
CV
Cabo Verde
X
X
X
CV
CY
Cyprus
X
X
CY
CZ
Czechia
X
X
X
X
CZ
A | B | C | D | E | F | G | H | I | J | K | L | M | N | O | P | Q | R | S | T | U | V | W | X | Z
D
International Phase
National Phase
Two-Letter Code plus Country or Organization
General Information
Receiving Offices
International Searching Authorities (ISA)
ISA(Supplementary Search)
International Preliminary Examining Authorities
Deposits of Biological Material
National Chapter
Code
Annex B
Annex C
Annex D
Annex SISA
Annex E
Annex L
Annex
DE
Germany
X
X
X
X
DE
DJ
Djibouti
X
X
X
X
DJ
DK
Denmark
X
X
X
X
DK
DM
Dominica
X
X
X
DM
DO
Dominican Republic
X
X
X
X
DO
DZ
Algeria
X
X
X
DZ
A | B | C | D | E | F | G | H | I | J | K | L | M | N | O | P | Q | R | S | T | U | V | W | X | Z
E
International Phase
National Phase
Two-Letter Code plus Country or Organization
General Information
Receiving Offices
International Searching Authorities (ISA)
ISA(Supplementary Search)
International Preliminary Examining Authorities
Deposits of Biological Material
National Chapter
Code
Annex B
Annex C
Annex D
Annex SISA
Annex E
Annex L
Annex
EA
Eurasian Patent Organization
X
X
X
X
X
X
EA
EC
Ecuador
X
X
X
X
EC
EE
Estonia
X
X
X
EE
EG
Egypt
X
X
X
X
X
EG
EP
European Patent Organisation
X
X
X
X
X
X
X
EP
ES
Spain
X
X
X
X
X
X
ES
A | B | C | D | E | F | G | H | I | J | K | L | M | N | O | P | Q | R | S | T | U | V | W | X | Z
F
International Phase
National Phase
Two-Letter Code plus Country or Organization
General Information
Receiving Offices
International Searching Authorities (ISA)
ISA(Supplementary Search)
International Preliminary Examining Authorities
Deposits of Biological Material
National Chapter
Code
Annex B
Annex C
Annex D
Annex SISA
Annex E
Annex L
Annex
FI
Finland
X
X
X
X
X
X
X
FI
FR
France
X
X
FR
A | B | C | D | E | F | G | H | I | J | K | L | M | N | O | P | Q | R | S | T | U | V | W | X | Z
G
International Phase
National Phase
Two-Letter Code plus Country or Organization
General Information
Receiving Offices
International Searching Authorities (ISA)
ISA(Supplementary Search)
International Preliminary Examining Authorities
Deposits of Biological Material
National Chapter
Code
Annex B
Annex C
Annex D
Annex SISA
Annex E
Annex L
Annex
GA
Gabon
X
X
GA
GB
United Kingdom
X
X
X
X
GB
GD
Grenada
X
X
X
GD
GE
Georgia
X
X
X
X
GE
GH
Ghana
X
X
X
GH
GM
Gambia
X
X
X
GM
GN
Guinea
X
X
GN
GQ
Equatorial Guinea
X
X
GQ
GR
Greece
X
X
GR
GT
Guatemala
X
X
X
X
GT
GW
Guinea-Bissau
X
X
GW
A | B | C | D | E | F | G | H | I | J | K | L | M | N | O | P | Q | R | S | T | U | V | W | X | Z
H
International Phase
National Phase
Two-Letter Code plus Country or Organization
General Information
Receiving Offices
International Searching Authorities (ISA)
ISA(Supplementary Search)
International Preliminary Examining Authorities
Deposits of Biological Material
National Chapter
Code
Annex B
Annex C
Annex D
Annex SISA
Annex E
Annex L
Annex
HN
Honduras
X
X
X
X
HN
HR
Croatia
X
X
X
X
HR
HU
Hungary
X
X
X
X
HU
A | B | C | D | E | F | G | H | I | J | K | L | M | N | O | P | Q | R | S | T | U | V | W | X | Z
I
International Phase
National Phase
Two-Letter Code plus Country or Organization
General Information
Receiving Offices
International Searching Authorities (ISA)
ISA(Supplementary Search)
International Preliminary Examining Authorities
Deposits of Biological Material
National Chapter
Code
Annex B
Annex C
Annex D
Annex SISA
Annex E
Annex L
Annex
IB
World Intellectual Property Organization
X
X
IB
ID
Indonesia
X
X
X
X
ID
IE
Ireland
X
X
IE
IL
Israel
X
X
X
X
X
X
IL
IN
India
X
X
X
X
X
X
IN
IQ
Iraq
X
X
X
IQ
IR
Iran (Islamic Republic of)
X
X
X
IR
IS
Iceland
X
X
X
X
IS
IT
Italy
X
X
X
X
IT
A | B | C | D | E | F | G | H | I | J | K | L | M | N | O | P | Q | R | S | T | U | V | W | X | Z
J
International Phase
National Phase
Two-Letter Code plus Country or Organization
General Information
Receiving Offices
International Searching Authorities (ISA)
ISA(Supplementary Search)
International Preliminary Examining Authorities
Deposits of Biological Material
National Chapter
Code
Annex B
Annex C
Annex D
Annex SISA
Annex E
Annex L
Annex
JM
Jamaica
X
X
X
JM
JO
Jordan
X
X
X
X
JO
JP
Japan
X
X
X
X
X
X
JP
A | B | C | D | E | F | G | H | I | J | K | L | M | N | O | P | Q | R | S | T | U | V | W | X | Z
K
International Phase
National Phase
Two-Letter Code plus Country or Organization
General Information
Receiving Offices
International Searching Authorities (ISA)
ISA(Supplementary Search)
International Preliminary Examining Authorities
Deposits of Biological Material
National Chapter
Code
Annex B
Annex C
Annex D
Annex SISA
Annex E
Annex L
Annex
KE
Kenya
X
X
X
X
KE
KG
Kyrgyzstan
X
X
X
KG
KH
Cambodia
X
X
X
KH
KM
Comoros
X
X
KM
KN
Saint Kitts and Nevis
X
X
X
KN
KP
Democratic People's Republic of Korea
X
X
X
KP
KR
Republic of Korea
X
X
X
X
X
X
KR
KW
Kuwait
X
X
X
KW
KZ
Kazakhstan
X
X
X
X
KZ
A | B | C | D | E | F | G | H | I | J | K | L | M | N | O | P | Q | R | S | T | U | V | W | X | Z
L
International Phase
National Phase
Two-Letter Code plus Country or Organization
General Information
Receiving Offices
International Searching Authorities (ISA)
ISA(Supplementary Search)
International Preliminary Examining Authorities
Deposits of Biological Material
National Chapter
Code
Annex B
Annex C
Annex D
Annex SISA
Annex E
Annex L
Annex
LA
Lao People's Democratic Republic
X
X
X
LA
LC
Saint Lucia
X
X
X
LC
LI
Liechtenstein
X
X
LI
LK
Sri Lanka
X
X
X
LK
LR
Liberia
X
X
X
LR
LS
Lesotho
X
X
X
LS
LT
Lithuania
X
X
X
LT
LU
Luxembourg
X
X
X
X
LU
LV
Latvia
X
X
X
LV
LY
Libya
X
X
X
LY
A | B | C | D | E | F | G | H | I | J | K | L | M | N | O | P | Q | R | S | T | U | V | W | X | Z
M
International Phase
National Phase
Two-Letter Code plus Country or Organization
General Information
Receiving Offices
International Searching Authorities (ISA)
ISA(Supplementary Search)
International Preliminary Examining Authorities
Deposits of Biological Material
National Chapter
Code
Annex B
Annex C
Annex D
Annex SISA
Annex E
Annex L
Annex
MA
Morocco
X
X
X
X
MA
MC
Monaco
X
X
MC
MD
Republic of Moldova
X
X
X
X
MD
ME
Montenegro
X
X
ME
MG
Madagascar
X
X
X
MG
MK
North Macedonia
X
X
X
X
MK
ML
Mali
X
X
ML
MN
Mongolia
X
X
X
MN
MR
Mauritania
X
X
MR
MT
Malta
X
X
MT
MU
Mauritius
X
X
X
X
MU
MW
Malawi
X
X
X
MW
MX
Mexico
X
X
X
X
MX
MY
Malaysia
X
X
X
X
MY
MZ
Mozambique
X
X
X
MZ
A | B | C | D | E | F | G | H | I | J | K | L | M | N | O | P | Q | R | S | T | U | V | W | X | Z
N
International Phase
National Phase
Two-Letter Code plus Country or Organization
General Information
Receiving Offices
International Searching Authorities (ISA)
ISA(Supplementary Search)
International Preliminary Examining Authorities
Deposits of Biological Material
National Chapter
Code
Annex B
Annex C
Annex D
Annex SISA
Annex E
Annex L
Annex
NA
Namibia
X
X
X
NA
NE
Niger
X
X
NE
NG
Nigeria
X
X
X
NG
NI
Nicaragua
X
X
X
X
NI
NL
Netherlands (Kingdom of the)
X
X
NL
NO
Norway
X
X
X
X
NO
NZ
New Zealand
X
X
X
X
NZ
A | B | C | D | E | F | G | H | I | J | K | L | M | N | O | P | Q | R | S | T | U | V | W | X | Z
O
International Phase
National Phase
Two-Letter Code plus Country or Organization
General Information
Receiving Offices
International Searching Authorities (ISA)
ISA(Supplementary Search)
International Preliminary Examining Authorities
Deposits of Biological Material
National Chapter
Code
Annex B
Annex C
Annex D
Annex SISA
Annex E
Annex L
Annex
OA
African Intellectual Property Organization
X
X
X
OA
OM
Oman
X
X
X
X
OM
A | B | C | D | E | F | G | H | I | J | K | L | M | N | O | P | Q | R | S | T | U | V | W | X | Z
P
International Phase
National Phase
Two-Letter Code plus Country or Organization
General Information
Receiving Offices
International Searching Authorities (ISA)
ISA(Supplementary Search)
International Preliminary Examining Authorities
Deposits of Biological Material
National Chapter
Code
Annex B
Annex C
Annex D
Annex SISA
Annex E
Annex L
Annex
PA
Panama
X
X
X
X
PA
PE
Peru
X
X
X
X
PE
PG
Papua New Guinea
X
X
X
PG
PH
Philippines
X
X
X
X
X
X
PH
PL
Poland
X
X
X
X
PL
PT
Portugal
X
X
X
X
PT
A | B | C | D | E | F | G | H | I | J | K | L | M | N | O | P | Q | R | S | T | U | V | W | X | Z
Q
International Phase
National Phase
Two-Letter Code plus Country or Organization
General Information
Receiving Offices
International Searching Authorities (ISA)
ISA(Supplementary Search)
International Preliminary Examining Authorities
Deposits of Biological Material
National Chapter
Code
Annex B
Annex C
Annex D
Annex SISA
Annex E
Annex L
Annex
QA
Qatar
X
X
X
X
QA
A | B | C | D | E | F | G | H | I | J | K | L | M | N | O | P | Q | R | S | T | U | V | W | X | Z
R
International Phase
National Phase
Two-Letter Code plus Country or Organization
General Information
Receiving Offices
International Searching Authorities (ISA)
ISA(Supplementary Search)
International Preliminary Examining Authorities
Deposits of Biological Material
National Chapter
Code
Annex B
Annex C
Annex D
Annex SISA
Annex E
Annex L
Annex
RO
Romania
X
X
X
X
RO
RS
Serbia
X
X
X
X
RS
RU
Russian Federation
X
X
X
X
X
X
X
RU
RW
Rwanda
X
X
X
RW
A | B | C | D | E | F | G | H | I | J | K | L | M | N | O | P | Q | R | S | T | U | V | W | X | Z
S
International Phase
National Phase
Two-Letter Code plus Country or Organization
General Information
Receiving Offices
International Searching Authorities (ISA)
ISA(Supplementary Search)
International Preliminary Examining Authorities
Deposits of Biological Material
National Chapter
Code
Annex B
Annex C
Annex D
Annex SISA
Annex E
Annex L
Annex
SA
Saudi Arabia
X
X
X
X
X
SA
SC
Seychelles
X
X
X
SC
SD
Sudan
X
X
X
SD
SE
Sweden
X
X
X
X
X
X
X
SE
SG
Singapore
X
X
X
X
X
X
X
SG
SI
Slovenia
X
X
SI
SK
Slovakia
X
X
X
X
SK
SL
Sierra Leone
X
X
X
SL
SM
San Marino
X
X
SM
SN
Senegal
X
X
SN
ST
Sao Tome and Principe
X
X
X
ST
SV
El Salvador
X
X
X
X
SV
SY
Syrian Arab Republic
X
X
X
SY
SZ
Eswatini
X
X
SZ
A | B | C | D | E | F | G | H | I | J | K | L | M | N | O | P | Q | R | S | T | U | V | W | X | Z
T
International Phase
National Phase
Two-Letter Code plus Country or Organization
General Information
Receiving Offices
International Searching Authorities (ISA)
ISA(Supplementary Search)
International Preliminary Examining Authorities
Deposits of Biological Material
National Chapter
Code
Annex B
Annex C
Annex D
Annex SISA
Annex E
Annex L
Annex
TD
Chad
X
X
TD
TG
Togo
X
X
TG
TH
Thailand
X
X
X
TH
TJ
Tajikistan
X
X
X
X
TJ
TM
Turkmenistan
X
X
X
X
TM
TN
Tunisia
X
X
X
TN
TR
Türkiye
X
X
X
X
X
X
X
TR
TT
Trinidad and Tobago
X
X
X
TT
TZ
United Republic of Tanzania
X
X
X
TZ
A | B | C | D | E | F | G | H | I | J | K | L | M | N | O | P | Q | R | S | T | U | V | W | X | Z
U
International Phase
National Phase
Two-Letter Code plus Country or Organization
General Information
Receiving Offices
International Searching Authorities (ISA)
ISA(Supplementary Search)
International Preliminary Examining Authorities
Deposits of Biological Material
National Chapter
Code
Annex B
Annex C
Annex D
Annex SISA
Annex E
Annex L
Annex
UA
Ukraine
X
X
X
X
X
X
X
UA
UG
Uganda
X
X
X
X
UG
US
United States of America
X
X
X
X
X
X
US
UY
Uruguay
X
X
X
X
UY
UZ
Uzbekistan
X
X
X
UZ
A | B | C | D | E | F | G | H | I | J | K | L | M | N | O | P | Q | R | S | T | U | V | W | X | Z
V
International Phase
National Phase
Two-Letter Code plus Country or Organization
General Information
Receiving Offices
International Searching Authorities (ISA)
ISA(Supplementary Search)
International Preliminary Examining Authorities
Deposits of Biological Material
National Chapter
Code
Annex B
Annex C
Annex D
Annex SISA
Annex E
Annex L
Annex
VC
Saint Vincent and the Grenadines
X
X
X
VC
VN
Viet Nam
X
X
X
VN
A | B | C | D | E | F | G | H | I | J | K | L | M | N | O | P | Q | R | S | T | U | V | W | X | Z
W
International Phase
National Phase
Two-Letter Code plus Country or Organization
General Information
Receiving Offices
International Searching Authorities (ISA)
ISA(Supplementary Search)
International Preliminary Examining Authorities
Deposits of Biological Material
National Chapter
Code
Annex B
Annex C
Annex D
Annex SISA
Annex E
Annex L
Annex
WS
Samoa
X
X
X
WS
A | B | C | D | E | F | G | H | I | J | K | L | M | N | O | P | Q | R | S | T | U | V | W | X | Z
X
International Phase
National Phase
Two-Letter Code plus Country or Organization
General Information
Receiving Offices
International Searching Authorities (ISA)
ISA(Supplementary Search)
International Preliminary Examining Authorities
Deposits of Biological Material
National Chapter
Code
Annex B
Annex C
Annex D
Annex SISA
Annex E
Annex L
Annex
XN
Nordic Patent Institute
X
X
X
X
X
XN
XV
Visegrad Patent Institute
X
X
X
X
X
XV
A | B | C | D | E | F | G | H | I | J | K | L | M | N | O | P | Q | R | S | T | U | V | W | X | Z
Z
International Phase
National Phase
Two-Letter Code plus Country or Organization
General Information
Receiving Offices
International Searching Authorities (ISA)
ISA(Supplementary Search)
International Preliminary Examining Authorities
Deposits of Biological Material
National Chapter
Code
Annex B
Annex C
Annex D
Annex SISA
Annex E
Annex L
Annex
ZA
South Africa
X
X
X
X
ZA
ZM
Zambia
X
X
X
ZM
ZW
Zimbabwe
X
X
X
ZW