David E. Shifren
Patent attorney, USPTO registration number 59329, status Active.
- Firm
- Otterstedt, Ellenbogen & Kammer LLP
- Location
- Stamford, CT
- On the USPTO roster since
- April 2007
David E. Shifren is a USPTO-registered patent attorney (registration number 59329) at Otterstedt, Ellenbogen & Kammer LLP, in Stamford, CT. The registration is active on the current USPTO roster, and David E. Shifren has been listed on the roster since April 2007.
Otterstedt, Ellenbogen & Kammer LLP has 3 registered patent practitioners on the roster (3 patent attorneys), so David E. Shifren works alongside 2 other registered practitioners there.
Stamford, CT has 91 registered patent practitioners in all: 79 patent attorneys and 12 patent agents.
Other registered practitioners in Stamford, CT
- Steven Jerome Moore — Patent attorney, Reg. No. 35959, Nealon Law
- Basam E. Nabulsi — Patent attorney, Reg. No. 31645, McCarter & English LLP
- Joseph Victor Noferi — Patent attorney, Reg. No. 75080, Ruggiero Mcallister & Mcmahon LLC
- Ryan S. Osterweil — Patent attorney, Reg. No. 67065, Day Pitney LLP
- Kiran Kanti Patel — Patent attorney, Reg. No. 73122, Philips Intellectual Property & Standards
- Michael J. Pollack — Patent agent, Reg. No. 53475, Troutman Pepper Locke LLP
- Charles Arthur Rattner — Patent attorney, Reg. No. 40136
- Louis Herman Reens — Patent attorney, Reg. No. 22588, St Onge Steward Johnston and Reens LLC
All patent attorneys and agents in Stamford, CT
Patent firms in Connecticut · Practitioners by state
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