We compiled a list of the top patent law firms and ranked them based on the total number of utility patents they filed in 2012. We have filtered company legal departments to compile the list.
| Law Firm | Applications |
| Oblon Mcclelland Maier & Neustadt LLP | 7155 |
| Sughrue Mion PLLC | 4974 |
| Birch Stewart Kolasch & Birch LLP | 3992 |
| Oliff PLC | 3368 |
| Knobbe Martens Olson & Bear LLP | 3335 |
| Nixon & Vanderhye PC | 3172 |
| Scienbizip PC | 3157 |
| Foley & Lardner LLP | 3063 |
| Muncy Geissler Olds & Lowe PC | 2226 |
| Venable LLP | 2164 |
| Staas & Halsey LLP | 1834 |
| Wenderoth Lind & Ponack LLP | 1735 |
| Mcdermott Will & Emery LLP | 1653 |
| Cantor Colburn LLP | 1638 |
| Buchanan Ingersoll & Rooney PC | 1575 |
| Dentons LLP | 1544 |
| Westerman Hattori Daniels & Adrian LLP | 1541 |
| JCIPRNET | 1478 |
| Finnegan Henderson Farabow Garrett & Dunner | 1472 |
| Harness Dickey Troy | 1464 |