We compiled a list of the top patent law firms and ranked them based on the total number of utility patents they filed in 2020. We have filtered company legal departments to compile the list.
| Law Firm | Applications Filed |
| Oblon Mcclelland Maier & Neustadt LLP | 2458 |
| Sughrue Mion PLLC | 2196 |
| Oliff PLC | 1829 |
| Birch Stewart Kolasch & Birch LLP | 1804 |
| Knobbe Martens Olson & Bear llp | 1713 |
| Foley & Lardner llp | 1523 |
| JCIPRNET | 1041 |
| Wenderoth Lind & Ponack LLP | 997 |
| Nixon & Vanderhye PC | 911 |
| Studebaker & Brackett PC | 910 |
| Muncy Geissler Olds & Lowe p c | 889 |
| Cantor Colburn LLP | 802 |
| Venable LLP | 787 |
| Harness Dickey Troy | 769 |
| Fish & Richardson PC DC | 759 |
| Greenblum & Bernstein PLC | 720 |
| Norton Rose Fulbright LLP | 701 |
| Xsensus LLP | 673 |
| Banner & Witcoff Ltd | 668 |
| Osha Bergman Watanabe & Burton llp | 639 |