We compiled a list of the top patent law firms and ranked them based on the total number of utility patents they filed in 2019. We have filtered company legal departments to compile the list.
| Law Firm | Applications |
| Oblon Mcclelland Maier & Neustadt LLP | 5717 |
| Sughrue Mion PLLC | 4954 |
| Oliff PLC | 4607 |
| Birch Stewart Kolasch & Birch LLC | 4176 |
| Knobbe Martens Olson & Bear LLC | 3708 |
| Foley & Lardner LLP | 3517 |
| JCIPRNET | 3107 |
| Muncy Geissler Olds & Lowe PC | 2334 |
| Cantor Colburn LLP | 1818 |
| Nixon & Vanderhye PC | 1801 |
| Studebaker & Brackett PC | 1692 |
| Wenderoth Lind & Ponack LLP | 1673 |
| Harness Dickey Troy | 1607 |
| Venable LLP | 1540 |
| Greenblum & Bernstein PLC | 1499 |
| Fish & Richardson PC DC | 1444 |
| Banner & Witcoff LTD | 1409 |
| Dentons LLP | 1373 |
| Lewis Roca Rothgerber Christie LLP | 1356 |
| Buchanan Ingersoll & Rooney PC | 1329 |