| Pietragallo Gordon Alfano Bosick and Raspanti | Pittsburgh, PA (US) | 322 | 32.8% |
| Sughrue Mion | Washington, DC (US) | 102,569 | 3.2% |
| Wenderoth Lind Ponack | Washington, DC (US) | 52,963 | 2.3% |
| Seed Ip Law Group | Seattle, WA (US) | 18,653 | 2.0% |
| Michael Best and Friedrich | Milwaukee, WI (US) | 27,528 | 1.9% |
| Birch Stewart Kolasch and Birch | Merrifield, VA (US) | 99,481 | 1.8% |
| Dentons Us | Washington, DC (US) | 17,123 | 1.8% |
| Oblon Mcclelland Maier and Neustadt | Alexandria, VA (US) | 56,006 | 1.5% |
| Lewis Roca Rothgerber Christie | Phoenix, AZ (US) | 11,523 | 1.3% |
| Cantor Colburn | Hartford, CT (US) | 61,527 | 0.99% |
