Richard A. Castellano
Patent agent, USPTO registration number 61961, status Active.
- Firm
- Oliff & Berridge PLC
- Location
- Alexandria, VA
- On the USPTO roster since
- October 2009
Richard A. Castellano is a USPTO-registered patent agent (registration number 61961) at Oliff & Berridge PLC, in Alexandria, VA. The registration is active on the current USPTO roster, and Richard A. Castellano has been listed on the roster since October 2009.
Oliff & Berridge PLC has 19 registered patent practitioners on the roster (11 patent attorneys and 8 patent agents), so Richard A. Castellano works alongside 18 other registered practitioners there.
Alexandria, VA has 601 registered patent practitioners in all: 371 patent attorneys and 226 patent agents.
Other registered practitioners in Alexandria, VA
- Jack I. Berman — Patent agent, Reg. No. 78298
- Howard L. Bernstein — Patent attorney, Reg. No. 25665, Sughrue Mion, PLLC
- Christopher J. Besler — Patent agent, Reg. No. 61529, University of Wyoming Research Products Center
- Daniel J. Bissing — Patent agent, Reg. No. 70334, Nath Golberg and Meyer
- Vivek Biswas — Patent attorney, Reg. No. 79259, Oblon, McClelland, Maier & Neustadt, L.L.P.
- Stanley M. Blacker — Patent attorney, Reg. No. 28690
- Anthony J. Blackman — Patent agent, Reg. No. 58815, Anthony J. Blackman
- Robert N. Blackmon — Patent attorney, Reg. No. 39494, Merek Blackmon & Voorhees LLC
All patent attorneys and agents in Alexandria, VA
Patent firms in Virginia · Practitioners by state
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