The table below has a list of the top 20 law firms that filed maximum patents in the USA in 2020. You can find the top US law firms of the last decade here: Top US patent prosecution firms of the decade
| Sr. No. | Law Firms | App Count |
| 1 | Fish & Richardson | 4887 |
| 2 | Oblon Mcclelland Maier & Neustadt | 4478 |
| 3 | Sughrue Mion | 4116 |
| 4 | Birch Stewart Kolasch & Birch | 3366 |
| 5 | Oliff | 3222 |
| 6 | Harness Dickey & Pierce | 3158 |
| 7 | Knobbe Martens Olson & Bear | 2974 |
| 8 | Foley & Lardner | 2962 |
| 9 | Kilpatrick Townsend & Stockton | 2321 |
| 10 | Cantor Colburn | 2176 |
| 11 | Nixon & Vanderhye | 2130 |
| 12 | JCIPRNET | 1974 |
| 13 | Muncy Geissler Olds & Lowe | 1678 |
| 14 | Wenderoth Lind & Ponack | 1651 |
| 15 | Studebaker & Brackett | 1580 |
| 16 | Finnegan Henderson Farabow Garrett & Dunner | 1572 |
| 17 | Norton Rose Fulbright | 1546 |
| 18 | Venable | 1392 |
| 19 | Xsensus | 1312 |
| 20 | Baker Hostetler | 1225 |
