Matthew D. Greisen
Patent agent, USPTO registration number 83492, status Active.
- Firm
- Cionca IP Law P.C.
- Location
- Irvine, CA
- On the USPTO roster since
- April 2025
Matthew D. Greisen is a USPTO-registered patent agent (registration number 83492) at Cionca IP Law P.C., in Irvine, CA. The registration is active on the current USPTO roster, and Matthew D. Greisen has been listed on the roster since April 2025.
Cionca IP Law P.C. has 3 registered patent practitioners on the roster (3 patent agents), so Matthew D. Greisen works alongside 2 other registered practitioners there.
Irvine, CA has 599 registered patent practitioners in all: 453 patent attorneys and 136 patent agents.
Other registered practitioners in Irvine, CA
- Paul N. Lee — Patent attorney, Reg. No. 60855, iBASEt
- Ronald A. Lee — Patent attorney, Reg. No. 80681
- Belinda Y. Lee — Patent agent, Reg. No. 46863, JCIP Global, Inc.
- Sabing H. Lee — Patent attorney, Reg. No. 43745, Knobbe Martens Olson & Bear LLP
- Joseph K. Lee — Patent attorney, Reg. No. 71143
- Yoojin Lee — Patent agent, Reg. No. 72723, Great Lawn Analytics LLC
- Jefferson K. Lee — Patent agent, Reg. No. 83532
- Andrew D. Lee — Patent attorney, Reg. No. 62005, Precision Patents, P.C.
All patent attorneys and agents in Irvine, CA
Patent firms in California · Practitioners by state
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