Dennis J. Butler
Patent attorney, USPTO registration number 51519, status Active.
- Firm
- Panitch Schwarze Belisario & Nadel LLP
- Location
- Philadelphia, PA
- On the USPTO roster since
- before May 2006
Dennis J. Butler is a USPTO-registered patent attorney (registration number 51519) at Panitch Schwarze Belisario & Nadel LLP, in Philadelphia, PA. The registration is active on the current USPTO roster, and Dennis J. Butler has been listed on the roster since before May 2006.
Panitch Schwarze Belisario & Nadel LLP has 3 registered patent practitioners on the roster (3 patent attorneys), so Dennis J. Butler works alongside 2 other registered practitioners there.
Philadelphia, PA has 513 registered patent practitioners in all: 377 patent attorneys and 115 patent agents.
Other registered practitioners in Philadelphia, PA
- Mark Douglas Simpson — Patent attorney, Reg. No. 32942, Saul Ewing Arnstein & Lehr LLP
- Cassius K. Sims — Patent attorney, Reg. No. 65822, Comcast
- Sara E. Sims — Patent agent, Reg. No. 75470, Morgan Lewis & Bockius LLP
- Henry Howson Skillman — Patent attorney, Reg. No. 17352, D'Ann Dorfman Herrell and Skillman
- Scott M. Slomowitz — Patent attorney, Reg. No. 39032, Caesar Rivise, P.C.
- Yevgeniy Slutskiy — Patent agent, Reg. No. 73541
- Alex Russell Sluzas — Patent attorney, Reg. No. 28669, Paul & Paul Two Logan Square
- Andrea D. Small — Patent attorney, Reg. No. 54859, FMC Corporation
All patent attorneys and agents in Philadelphia, PA
Patent firms in Pennsylvania · Practitioners by state
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