Registered patent agent
Matthew D. Greisen
Firm
Cionca IP Law P.C.
Address
2030 Main St
Suite 1300
Irvine, CA, 92614
US
Phone
Registered as
Registered patent agent
Other patent attorneys in Irvine, California
- Eric L. AbadaKnobbe, Martens, Olson & Bear, LLP
- Lannah S. AbasiK&L Gates LLP
- Tina Marie AbernethyLaw Office of Tina M. Abernethy
- Saul AchermanJafari Law Group, Inc.
- Jessica L AchtsamKnobbe Martens Olson & Bear LLP
- William O. AdamsKnobbe, Martens, Olson & Bear LLP
- Micha AdlerProcopio, Cory, Hargreaves & Savitch
- Erik M. AhroonAcacia Research Group LLC
Frequently asked
Frequently asked about Matthew D. Greisen
Is Matthew D. Greisen a registered patent attorney?
Matthew D. Greisen is a registered patent agent (USPTO Registration Number 83492). Patent agents can prepare and file patent applications but cannot give legal advice on infringement; for legal counsel, look for an attorney.
Where is Matthew D. Greisen located?
Matthew D. Greisen's office is in Irvine, California (92614). Affiliated with Cionca IP Law P.C..
What firm does Matthew D. Greisen work at?
Matthew D. Greisen is listed as affiliated with Cionca IP Law P.C. on the USPTO Office of Enrollment and Discipline practitioner roster.
How do I contact Matthew D. Greisen?
Matthew D. Greisen's office phone (per the USPTO public roster) is 949-334-3036. Verify availability and intake details directly with the firm before sending privileged materials.
Should I prepare anything before contacting a patent attorney?
Yes — most patent attorneys quote based on a brief. Persoona's intellectual property module generates a prior-art analysis, defensibility scorecard, and a draft USPTO filing package so you arrive with a brief, not a blank slate. Free to run.
Profile sourced from the USPTO OEDCI Practitioner Roster. Persoona did not provide, edit, or curate this data — every field is pulled directly from the public roster.