Registered patent attorney
Brian C Claassen
Firm
Knobbe Martens Olson & Bear LLP
Address
2040 Main Street, 14th Floor
Irvine, CA, 92614
US
Phone
Registered as
Registered patent attorney
Other attorneys at Knobbe Martens Olson & Bear LLP
- Jessica L AchtsamUSPTO Reg. 75684 · Irvine, CA
- Jared C BunkerUSPTO Reg. 58474 · Irvine, CA
- Cheryl T BurgessUSPTO Reg. 55030 · Irvine, CA
- Karen Marie CassidyUSPTO Reg. 70611 · Irvine, CA
- Michael R ChristensenUSPTO Reg. 57505 · Irvine, CA
- Mark E. DavisUSPTO Reg. 74368 · Irvine, CA
- Ian W. GilliesUSPTO Reg. 62280 · Irvine, CA
- Laura E. HallUSPTO Reg. 65157 · Irvine, CA
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.
- William O. AdamsKnobbe, Martens, Olson & Bear LLP
- Micha AdlerProcopio, Cory, Hargreaves & Savitch
- Erik M. AhroonAcacia Research Group LLC
- Adeel S AkhtarKnobbe Martens Olson and Bear, LLP
Frequently asked
Frequently asked about Brian C Claassen
Is Brian C Claassen a registered patent attorney?
Yes. Brian C Claassen is a registered patent attorney with the United States Patent and Trademark Office (USPTO Registration Number 63051). Registration is verified against the USPTO Office of Enrollment and Discipline roster.
Where is Brian C Claassen located?
Brian C Claassen's office is in Irvine, California (92614). Affiliated with Knobbe Martens Olson & Bear LLP.
What firm does Brian C Claassen work at?
Brian C Claassen is listed as affiliated with Knobbe Martens Olson & Bear LLP on the USPTO Office of Enrollment and Discipline practitioner roster.
How do I contact Brian C Claassen?
Brian C Claassen's office phone (per the USPTO public roster) is 949-760-0404. 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.