Registered patent attorney
John B Loker
Firm
Leydig, Voit, and Mayer
Address
1981 N. Broadway
Suite 375
Walnut Creek, CA, 94596
US
Phone
Registered as
Registered patent attorney
Other patent attorneys in Walnut Creek, California
- Javed S M AfzalUSPTO Reg. 47222
- Nisha AgarwalKILPATRICK TOWNSEND & STOCKTON LLP
- Houtan AmanatKILPATRICK TOWNSEND & STOCKTON LLP
- Juerg W BaenzigerUSPTO Reg. 50339
- Vanessa M BellKilpatrick Townsend & Stockton LLP
- Arthur J BobelLeydig, Voit & Mayer, LLP
- Andrew J. ChanTressler, LLP
- David D ChungUSPTO Reg. 38409
Frequently asked
Frequently asked about John B Loker
Is John B Loker a registered patent attorney?
Yes. John B Loker is a registered patent attorney with the United States Patent and Trademark Office (USPTO Registration Number 66862). Registration is verified against the USPTO Office of Enrollment and Discipline roster.
Where is John B Loker located?
John B Loker's office is in Walnut Creek, California (94596). Affiliated with Leydig, Voit, and Mayer.
What firm does John B Loker work at?
John B Loker is listed as affiliated with Leydig, Voit, and Mayer on the USPTO Office of Enrollment and Discipline practitioner roster.
How do I contact John B Loker?
John B Loker's office phone (per the USPTO public roster) is 925-482-0100. 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.