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Types of Protection Available via the PCT in PCT Contracting States

(status on 22 January 2024)

Two-letter code Contracting State or Organization National patent ARIPO patent (AP) Eurasian patent (EA) European patent (EP) OAPI patent (OA) Utility model instead of
national patent		 Utility model
in addition to national patent		 Other
AE  United Arab Emirates X         X   Patent of addition
AG  Antigua and Barbuda X             Utility model certificates
AL  Albania X     X   X  
AM Armenia X   X     Short-term patents
AO Angola X         X   Certificate of addition
AT Austria X     X   X X Patent of addition
AU Australia X             Patent of addition
AZ Azerbaijan X   X     X  
Two-letter code Contracting State or Organization National patent ARIPO patent (AP) Eurasian patent (EA) European patent (EP) OAPI patent (OA) Utility model instead of
national patent		 Utility model
in addition to national patent		 Other
BA Bosnia and Herzegovina X Consensual patents,
extension of EP patent1
BB Barbados X
BE Belgium X
BF  Burkina Faso          X OAPI utility model   OAPI certificate of addition
BG  Bulgaria X     X   X X
BH Bahrain X           X
BJ  Benin         X OAPI utility model   OAPI certificate of addition
BN Brunei Darussalam X
BR Brazil X         X   Certificate of addition
BW Botswana X X       ARIPO utility model ARIPO utility model Utility model certificate
BY Belarus X   X     X
BZ Belize X         X
Two-letter code Contracting State or Organization National patent ARIPO patent (AP) Eurasian patent (EA) European patent (EP) OAPI patent (OA) Utility model instead of
national patent		 Utility model
in addition to national patent		 Other
CA Canada X
CF Central African Republic         X OAPI utility model   OAPI certificate of addition
CG  Congo          X OAPI utility model   OAPI certificate of addition
CH and LI Switzerland and Liechtenstein X     X    
CI  Côte d'Ivoire          X OAPI utility model   OAPI certificate of addition
CL Chile X         X
CM  Cameroon          X OAPI utility model   OAPI certificate of addition
CN China X         X  
CO Colombia X         X
CR Costa Rica X         X
CU Cuba X         X
CY Cyprus       X    
CZ Czechia X     X   X X
Two-letter code Contracting State or Organization National patent ARIPO patent (AP) Eurasian patent (EA) European patent (EP) OAPI patent (OA) Utility model instead of
national patent		 Utility model
in addition to national patent		 Other
DE Germany X     X   X X
DJ Djibouti X             Certificate of addition
DK Denmark X     X   X X
DM2 Dominica X            
DO Dominican Republic X         X
DZ Algeria X         Certificate of addition
Two-letter code Contracting State or Organization National patent ARIPO patent (AP) Eurasian patent (EA) European patent (EP) OAPI patent (OA) Utility model instead of
national patent		 Utility model
in addition to national patent		 Other
EC Ecuador X         X
EE Estonia X     X   X X
EG Egypt X         X  
ES Spain X     X   X
Two-letter code Contracting State or Organization National patent ARIPO patent (AP) Eurasian patent (EA) European patent (EP) OAPI patent (OA) Utility model instead of
national patent		 Utility model
in addition to national patent		 Other
FI Finland X     X   X X
FR France       X      
Two-letter code Contracting State or Organization National patent ARIPO patent (AP) Eurasian patent (EA) European patent (EP) OAPI patent (OA) Utility model instead of
national patent		 Utility model
in addition to national patent		 Other
GA Gabon         X OAPI utility model   OAPI certificate of addition
GB United Kingdom X     X    
GD2 Grenada X  
GE Georgia  X         X   Validation of EP patent1
GH Ghana X X       ARIPO utility model ARIPO utility model Utility certificate
GM Gambia X X       National or ARIPO utility model ARIPO utility model
GN Guinea         X OAPI utility model   OAPI certificate of addition
GQ  Equatorial Guinea         X OAPI utility model   OAPI certificate of addition
GR Greece       X      
GT Guatemala X         X
GW  Guinea-Bissau         X OAPI utility model   OAPI certificate of addition
Two-letter code Contracting State or Organization National patent ARIPO patent (AP) Eurasian patent (EA) European patent (EP) OAPI patent (OA) Utility model instead of
national patent		 Utility model
in addition to national patent		 Other
HN Honduras X         X  
HR Croatia X     X   X  
HU Hungary X     X   X  
Two-letter code Contracting State or Organization National patent ARIPO patent (AP) Eurasian patent (EA) European patent (EP) OAPI patent (OA) Utility model instead of
national patent		 Utility model
in addition to national patent		 Other
ID Indonesia X          
IE Ireland       X    
IL Israel X             Patent of addition
IN India X             Patent of addition
IQ Iraq X Patent of addition
IR Iran (Islamic Republic of) X
IS Iceland X     X
IT Italy X6     X   X
Two-letter code Contracting State or Organization National patent ARIPO patent (AP) Eurasian patent (EA) European patent (EP) OAPI patent (OA) Utility model instead of
national patent		 Utility model
in addition to national patent		 Other
JM Jamaica X X X
JO Jordan X             Patent of addition
JP Japan X         X  
Two-letter code Contracting State or Organization National patent ARIPO patent (AP) Eurasian patent (EA) European patent (EP) OAPI patent (OA) Utility model instead of
national patent		 Utility model
in addition to national patent		 Other
KE Kenya X X       National or ARIPO
utility model		 ARIPO utility model  
KG Kyrgyzstan X   X     X
KH Cambodia X X Validation of EP patent1
KM Comoros         X OAPI utility model   OAPI certificate of addition
KN Saint Kitts and Nevis X             Utility certificate
KP Democratic People's Republic of Korea X           Inventor’s certificate, petty inventor’s certificate, petty patent
KR Republic of Korea X         X
KW Kuwait X
KZ Kazakhstan X   X     X
Two-letter code Contracting State or Organization National patent ARIPO patent (AP) Eurasian patent (EA) European patent (EP) OAPI patent (OA) Utility model instead of
national patent		 Utility model
in addition to national patent		 Other
LA Lao People's Democratic Republic X         X
LC Saint Lucia X
LI (refer to CH) Liechtenstein
LK Sri Lanka X
LR  Liberia  X X       National or ARIPO
utility model		 ARIPO utility model
LS  Lesotho X X       National or ARIPO utility model ARIPO utility model
LT Lithuania       X
LU Luxembourg X     X
LV Latvia       X
LY Libya X             Patent of addition
Two-letter code Contracting State or Organization National patent ARIPO patent (AP) Eurasian patent (EA) European patent (EP) OAPI patent (OA) Utility model instead of
national patent		 Utility model
in addition to national patent		 Other
MA Morocco   X Validation of EP patent1
MC Monaco        X    
MD Republic of Moldova X         Short-term patent, validation of EP patent1
ME Montenegro X3 Extension of EP patent1
MG Madagascar X             Certificate of addition
MK North Macedonia X     X      
ML Mali         X OAPI utility model   OAPI certificate of addition
MN Mongolia X            
MR Mauritania         X OAPI utility model   OAPI certificate of addition
MT Malta       X  
MW Malawi X X       ARIPO utility model ARIPO utility model Patent of addition
MX Mexico X         X
MY Malaysia X             Certificates for a utility innovation
MZ Mozambique X X       National or ARIPO
utility model		 ARIPO utility model
Two-letter code Contracting State or Organization National patent ARIPO patent (AP) Eurasian patent (EA) European patent (EP) OAPI patent (OA) Utility model instead of
national patent		 Utility model
in addition to national patent		 Other
NA Namibia X X       ARIPO utility model ARIPO utility model
NE Niger         X OAPI utility model   OAPI certificate of addition
NG Nigeria X          
NI Nicaragua X         X
NL Netherlands       X  
NO  Norway  X     X  
NZ New Zealand X             Patent of addition
Two-letter code Contracting State or Organization National patent ARIPO patent (AP) Eurasian patent (EA) European patent (EP) OAPI patent (OA) Utility model instead of
national patent		 Utility model
in addition to national patent		 Other
OM Oman X         X  
Two-letter code Contracting State or Organization National patent ARIPO patent (AP) Eurasian patent (EA) European patent (EP) OAPI patent (OA) Utility model instead of
national patent		 Utility model
in addition to national patent		 Other
PA Panama X         X   Patent of addition
PE Peru X         X  
PG Papua New Guinea X          
PH Philippines X         X  
PL Poland X     X   X
PT Portugal X     X   X X
Two-letter code Contracting State or Organization National patent ARIPO patent (AP) Eurasian patent (EA) European patent (EP) OAPI patent (OA) Utility model instead of
national patent		 Utility model
in addition to national patent		 Other
QA Qatar X          
Two-letter code Contracting State or Organization National patent ARIPO patent (AP) Eurasian patent (EA) European patent (EP) OAPI patent (OA) Utility model instead of
national patent		 Utility model
in addition to national patent		 Other
RO Romania X     X   X X
RS Serbia X     X       Patent of addition,
petty patent
RU Russian Federation X   X     X
RW Rwanda X X       National or ARIPO
utility model		 ARIPO utility model
Two-letter code Contracting State or Organization National patent ARIPO patent (AP) Eurasian patent (EA) European patent (EP) OAPI patent (OA) Utility model instead of
national patent		 Utility model
in addition to national patent		 Other
SA Saudi Arabia X  
SC Seychelles X X7     ARIPO utility model7 ARIPO utility model7
SD Sudan X X       ARIPO utility model ARIPO utility model
SE Sweden X     X
SG Singapore X          
SI Slovenia       X  
SK Slovakia X     X   X X
SL Sierra Leone X X       National or ARIPO
utility model		 ARIPO utility model
SM San Marino X4     X    
SN Senegal         X OAPI utility model   OAPI certificate of addition
ST Sao Tome and Principe X X       ARIPO utility model ARIPO utility model
SV El Salvador X         X  
SY Syrian Arab Republic X             Certificate of addition
SZ Eswatini   X       ARIPO utility model ARIPO utility model
Two-letter code Contracting State or Organization National patent ARIPO patent (AP) Eurasian patent (EA) European patent (EP) OAPI patent (OA) Utility model instead of
national patent		 Utility model
in addition to national patent		 Other
TD Chad         X OAPI utility model   OAPI certificate of addition
TG Togo         X OAPI utility model   OAPI certificate of addition
TH Thailand X             Petty patent
TJ Tajikistan X   X     Petty patent
TM Turkmenistan X   X         Provisional patent
TN Tunisia X Validation of EP patent1
TR Türkiye X     X   X   Patent of addition
TT Trinidad and Tobago X             Utility certificate
TZ United Republic of Tanzania X X       ARIPO utility model ARIPO utility model
Two-letter code Contracting State or Organization National patent ARIPO patent (AP) Eurasian patent (EA) European patent (EP) OAPI patent (OA) Utility model instead of
national patent		 Utility model
in addition to national patent		 Other
UA Ukraine X         X  
UG Uganda X X       ARIPO utility model ARIPO utility model Utility certificate
US United States of America X        
UZ Uzbekistan X         X
Two-letter code Contracting State or Organization National patent ARIPO patent (AP) Eurasian patent (EA) European patent (EP) OAPI patent (OA) Utility model instead of
national patent		 Utility model
in addition to national patent		 Other
VC Saint Vincent and the Grenadines X             Utility certificate
VN Viet Nam X             “Patent for utility solution”
Two-letter code Contracting State or Organization National patent ARIPO patent (AP) Eurasian patent (EA) European patent (EP) OAPI patent (OA) Utility model instead of
national patent		 Utility model
in addition to national patent		 Other
WS5 Samoa X           Innovation patent
Two-letter code Contracting State or Organization National patent ARIPO patent (AP) Eurasian patent (EA) European patent (EP) OAPI patent (OA) Utility model instead of
national patent		 Utility model
in addition to national patent		 Other
ZA South Africa X             Patent of addition
ZM Zambia X X       National or ARIPO utility model ARIPO utility model Patent of addition
ZW Zimbabwe X X       ARIPO utility model ARIPO utility model Patent of addition
  1. For information on the extension or validation of European patents, refer to www.epo.org/law-practice/legal-texts/extension-validation-system.html.
  2. Information regarding any other type of national protection is not yet available.
  3. Applicants wishing to obtain patent protection in Montenegro should enter the regional phase before the European Patent Office (EPO) and seek the extension of the European patent application and the granted European patent to Montenegro, as there is no national phase before the Ministry of Economy, Department for Intellectual Property (Montenegro).  Further information: www.wipo.int/pct/guide/en/gdvol2/annexes/me.pdf
  4. Only for international applications filed before 1 January 2020.
  5. Only for international applications filed on or after 2 January 2020.
  6. Only for international applications filed on or after 1 July 2020
  7. Only for international applications filed on or after 1 January 2022
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