Patentcloud collects more than 100 countries patent databases. The country codes are aligned with the USPTO.
For core patent data collection and coverage please check the timely data completeness page.
The format of the country codes is shown below.
| COUNTRY | CODE |
| African Intellectual Property Organization (OAPI) | OA |
| Algeria | DZ |
| Argentina | AR |
| ARIPO | AP |
| Armenia | AM |
| Australia | AU |
| Austria | AT |
| Belarus | BY |
| Belgium | BE |
| Brazil | BR |
| Bulgaria | BG |
| Canada | CA |
| Chile | CL |
| China | CN |
| Colombia | CO |
| Costa Rica | CR |
| Croatia | HR |
| Cuba | CU |
| Cyprus | CY |
| Czech Republic | CZ |
| Czechoslovakia | CS |
| Denmark | DK |
| Dominican republic | DO |
| Ecuador | EC |
| Egypt | EG |
| El Salvador | SV |
| Estonia | EE |
| Eurasian Patent Organization (EAPO) | EA |
| Europe | ER |
| Finland | FI |
| France | FR |
| Georgia | GE |
| German Democratic Republic | DD |
| Germany | DE |
| Greece | GR |
| Guatemala | GT |
| Gulf Cooperation Council (GCC) | GC |
| Honduras | HN |
| Hong Kong | HK |
| Hungary | HU |
| Iceland | IS |
| India | IN |
| Indonesia | ID |
| Ireland | IE |
| Israel | IL |
| Italy | IT |
| Japan | JP |
| Jordan | JO |
| Kenya | KE |
| Korea | KR |
| Latvia | LV |
| Lithuania | LT |
| Luxembourg | LU |
| Macao | MO |
| Malawi | MW |
| Malaysia | MY |
| Malta | MT |
| Mexico | MX |
| Monaco | MC |
| Mongolia | MN |
| Montenegro | ME |
| Morocco | MA |
| Netherlands | NL |
| New Zealand | NZ |
| Nicaragua | NI |
| Norway | NO |
| Panama | PA |
| Peru | PE |
| Philippines | PH |
| Poland | PL |
| Portugal | PT |
| Republic of Moldova | MD |
| Romania | RO |
| Russia | RU |
| San Marino | SM |
| Saudi Arabia | SA |
| Serbia | RS |
| Singapore | SG |
| Slovakia | SK |
| Slovenia | SI |
| South Africa | ZA |
| Soviet Union (USSR) | SU |
| Spain | ES |
| Sweden | SE |
| Switzerland | CH |
| Taiwan | TW |
| Tajikistan | TJ |
| Thailand | TH |
| Tunisia | TN |
| Turkey | TR |
| Ukraine | UA |
| United Arab Emirates | AE |
| United Kingdom | GB |
| United States | US |
| Uruguay | UY |
| Viet Nam | VN |
| WIPO | WO |
| Yugoslavia/Serbia and Montenegro | YU |
| Zambia | ZM |
| Zimbabwe | ZW |