Registered patent attorney
Timothy J O'Brien
Firm
RPX Corporation
Address
4 Embarcadero Center, #4000
San Francisco, CA, 94111
US
Phone
Registered as
Registered patent attorney
Other attorneys at RPX Corporation
- Steve W. ChiangUSPTO Reg. 69766 · San Francisco, CA
- William W ChuangUSPTO Reg. 39635 · San Francisco, CA
- Aashish R KarkhanisUSPTO Reg. 62572 · San Francisco, CA
- Thomas J LerdalUSPTO Reg. 61702 · San Francisco, CA
- Wing H LiangUSPTO Reg. 78846 · San Francisco, CA
- Bita MortazaviUSPTO Reg. 75107 · San Francisco, CA
- Eric J OlsenUSPTO Reg. 51157 · San Francisco, CA
- Darryl J OngUSPTO Reg. 67521 · San Francisco, CA
Other patent attorneys in San Francisco, California
- Evan K AbbaszadehUSPTO Reg. 77455
- Tom AbelesEvolve Discovery
- Michael J AdamsSquire Patton Boggs
- Bonnie M AdellZendesk, Inc.
- Michael T AdelsheimTucker Ellis, LLP
- Matthew Allan AdrianowyczWilson Sonsini Goodrich & Rosati
- Anchal AgarwalAlston & Bird LLP
- Juwon AhnCovington & Burling LLP
Frequently asked
Frequently asked about Timothy J O'Brien
Is Timothy J O'Brien a registered patent attorney?
Yes. Timothy J O'Brien is a registered patent attorney with the United States Patent and Trademark Office (USPTO Registration Number 68264). Registration is verified against the USPTO Office of Enrollment and Discipline roster.
Where is Timothy J O'Brien located?
Timothy J O'Brien's office is in San Francisco, California (94111). Affiliated with RPX Corporation.
What firm does Timothy J O'Brien work at?
Timothy J O'Brien is listed as affiliated with RPX Corporation on the USPTO Office of Enrollment and Discipline practitioner roster.
How do I contact Timothy J O'Brien?
Timothy J O'Brien's office phone (per the USPTO public roster) is 866-779-7641. 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.