Country codes are two letters indicating the country or organisation where the patent application was filed or granted (eg GB). The list of countries covered by our worldwide database is shown in this table:
| CC | Name |
| AL | Albania |
| AP | African Regional Industrial Property Organization |
| AR | Argentina |
| AT | Austria |
| AU | Australia |
| BA | Bosnia and Herzegovina |
| BE | Belgium |
| BG | Bulgaria |
| BR | Brazil |
| CA | Canada |
| CH | Switzerland |
| CL | Chile |
| CN | China |
| CO | Colombia |
| CR | Costa Rica |
| CS | Czechoslovakia (up to 1993) |
| CU | Cuba |
| CY | Cyprus |
| CZ | Czech Republic |
| DD | German Democratic Republic |
| DE | Germany |
| DK | Denmark |
| DZ | Algeria |
| EA | Eurasian Patent Organization |
| EC | Ecuador |
| EE | Estonia |
| EG | Egypt |
| EP | European Patent Office |
| ES | Spain |
| FI | Finland |
| FR | France |
| GB | United Kingdom |
| GC | Gulf Cooperation Council |
| GE | Georgia |
| GR | Greece |
| GT | Guatemala |
| HK | Hong Kong (S.A.R.) |
| HR | Croatia |
| HU | Hungary |
| ID | Indonesia |
| IE | Ireland |
| IL | Israel |
| IN | India |
| IS | Iceland |
| IT | Italy |
| JP | Japan |
| KE | Kenya |
| KR | Korea (South) |
| LI | Liechtenstein |
| LT | Lithuania |
| LU | Luxembourg |
| LV | Latvia |
| MA | Morocco |
| MC | Monaco |
| MD | Republic of Moldova |
| ME | Montenegro |
| MK | Former Yugoslav Republic of Macedonia |
| MN | Mongolia |
| MT | Malta |
| MW | Malawi |
| MX | Mexico |
| MY | Malaysia |
| NL | Netherlands |
| NO | Norway |
| NZ | New Zealand |
| OA | African Intellectual Property Organization |
| PA | Panama |
| PE | Peru |
| PH | Philippines |
| PL | Poland |
| PT | Portugal |
| RO | Romania |
| RS | Serbia |
| RU | Russian Federation |
| SE | Sweden |
| SG | Singapore |
| SI | Slovenia |
| SK | Slovakia |
| SM | San Marino |
| SU | Soviet Union (USSR) |
| SV | El Salvador |
| TJ | Tajikistan |
| TR | Turkey |
| TT | Trinidad and Tobago |
| TW | Taiwan |
| UA | Ukraine |
| US | United States of America |
| UY | Uruguay |
| VN | Viet Nam |
| WO | World Intellectual Property Organization (WIPO) |
| YU | Yugoslavia/Serbia and Montenegro |
| ZA | South Africa |
| ZM | Zambia |
| ZW | Zimbabwe |