Top Patent Firms in Philadelphia, PA

Below are the firms with the most registered patent attorneys and agents in Philadelphia, PA.

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Rank Firm Patent Attorneys/Agents
1 Small firm, in-house, unaffiliated 134
2 Woodcock Washburn Kurtz MacKiewicz and Norris 63
3 Volpe and Koenig 24
3 Caesar Rivise Bernstein Cohen and Pokotilow 24
5 Drinker Biddle & Reath 23
6 Synnestvedt and Lechner 21
7 Akin, Gump, Strauss, Hauer & Feld 16
8 Duane Morris 12
9 Morgan, Lewis & Bockius 11
10 Reed Smith 10
10 Cozen O'Connor 10
12 Schnader Harrison Segal & Lewis 6
12 Dechert 6
14 Wolf, Block, Schorr and Solis-Cohen 5
14 DLA Piper Rudnick Gray Cary 5
16 Blank Rome 4
17 Pepper Hamilton 3
18 Fox Rothschild 2
19 Ballard Spahr Andrews & Ingersoll 1
19 Montgomery, McCracken, Walker & Rhoads 1
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