63318 inventors at IBM filed 144587 US patents between 1976 and 2020. These IBM inventors belong to 73 different countries.
The donut chart below shares the percentage contribution of inventors from the top ten countries in IBM’s US patent filing.
Countries of Inventors of IBM US Patents
| Country | Inventor | Patent | % of Inventors |
| United States Of America | 41876 | 358267 | 66.14 |
| Japan | 2838 | 21534 | 4.48 |
| China | 2417 | 14324 | 3.82 |
| India | 2387 | 13187 | 3.77 |
| Germany | 2371 | 13569 | 3.74 |
| United Kingdom | 1969 | 9893 | 3.11 |
| Canada | 1935 | 9685 | 3.06 |
| Israel | 1504 | 9473 | 2.38 |
| France | 1010 | 5386 | 1.60 |
| Switzerland | 796 | 7286 | 1.26 |
| Taiwan | 549 | 3985 | 0.87 |
| Italy | 505 | 2748 | 0.80 |
| Australia | 504 | 2676 | 0.80 |
| Ireland | 497 | 3175 | 0.78 |
| Brazil | 327 | 1215 | 0.52 |
| Korea (South) | 257 | 3534 | 0.41 |
| Singapore | 191 | 870 | 0.30 |
| Poland | 166 | 758 | 0.26 |
| Netherlands | 115 | 395 | 0.18 |
| Mexico | 91 | 231 | 0.14 |
| Sweden | 86 | 217 | 0.14 |
| Spain | 82 | 223 | 0.13 |
| Belgium | 64 | 356 | 0.10 |
| Egypt | 61 | 236 | 0.10 |
| Austria | 60 | 269 | 0.09 |
| Denmark | 54 | 174 | 0.09 |
| Hong Kong (S.A.R.) | 46 | 199 | 0.07 |
| Costa Rica | 45 | 194 | 0.07 |
| New Zealand | 42 | 153 | 0.07 |
| Kenya | 33 | 234 | 0.05 |
| Russian Federation | 31 | 93 | 0.05 |
| Hungary | 29 | 136 | 0.05 |
| Argentina | 29 | 86 | 0.05 |
| Czech Republic | 28 | 131 | 0.04 |
| Norway | 26 | 62 | 0.04 |
| Malaysia | 25 | 44 | 0.04 |
| Saudi Arabia | 23 | 120 | 0.04 |
| Finland | 22 | 75 | 0.03 |
| Greece | 21 | 70 | 0.03 |
| South Africa | 18 | 57 | 0.03 |
| Romania | 15 | 22 | 0.02 |
| United Arab Emirates | 12 | 54 | 0.02 |
| Brunei | 11 | 21 | 0.02 |
| Philippines | 9 | 17 | 0.01 |
| Thailand | 7 | 35 | 0.01 |
| Turkey | 7 | 13 | 0.01 |
| Georgia | 6 | 18 | 0.01 |
| Chile | 5 | 12 | 0.01 |
| Portugal | 5 | 8 | 0.01 |
| Tunisia | 5 | 6 | 0.01 |
| Latvia | 4 | 5 | 0.01 |
| Pakistan | 3 | 16 | 0.00 |
| Slovakia | 3 | 9 | 0.00 |
| Viet Nam | 3 | 3 | 0.00 |
| Indonesia | 2 | 14 | 0.00 |
| Kazakhstan | 2 | 7 | 0.00 |
| Jordan | 2 | 6 | 0.00 |
| Venezuela | 2 | 4 | 0.00 |
| Colombia | 2 | 4 | 0.00 |
| Belarus | 2 | 3 | 0.00 |
| Trinidad and Tobago | 2 | 2 | 0.00 |
| Iceland | 1 | 107 | 0.00 |
| Luxembourg | 1 | 7 | 0.00 |
| Macao | 1 | 4 | 0.00 |
| Malta | 1 | 3 | 0.00 |
| Iran | 1 | 2 | 0.00 |
| Algeria | 1 | 2 | 0.00 |
| Czechoslovakia (up to 1993) | 1 | 1 | 0.00 |
| Cyprus | 1 | 1 | 0.00 |
| Croatia | 1 | 1 | 0.00 |
| Ukraine | 1 | 1 | 0.00 |
| Lithuania | 1 | 1 | 0.00 |
| European Patent Office | 1 | 1 | 0.00 |