Registered patent agent
Joel T Stoffregen
Firm
DLA Piper LLP (US)
Address
555 Mission Street
Suite 2400
San Francisco, CA, 94105
US
Phone
Registered as
Registered patent agent
Other attorneys at DLA Piper LLP (US)
- Yousuf U. AhmedUSPTO Reg. 74070 · Philadelphia, PA
- Shawn Reza BastaniUSPTO Reg. 79847 · Austin, TX
- Nancy N. EndejannUSPTO Reg. 50229 · Philadelphia, PA
- Brian K EricksonUSPTO Reg. 48895 · Austin, TX
- Paige GranieUSPTO Reg. 81480 · Los Angeles, CA
- Aldon GriffisUSPTO Reg. 55949 · San Diego, CA
- Kevin C. HamiltonUSPTO Reg. 67593 · San Diego, CA
- Emma K. HollandUSPTO Reg. 79947 · Philadelphia, PA
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 Joel T Stoffregen
Is Joel T Stoffregen a registered patent attorney?
Joel T Stoffregen is a registered patent agent (USPTO Registration Number 65826). Patent agents can prepare and file patent applications but cannot give legal advice on infringement; for legal counsel, look for an attorney.
Where is Joel T Stoffregen located?
Joel T Stoffregen's office is in San Francisco, California (94105). Affiliated with DLA Piper LLP (US).
What firm does Joel T Stoffregen work at?
Joel T Stoffregen is listed as affiliated with DLA Piper LLP (US) on the USPTO Office of Enrollment and Discipline practitioner roster.
How do I contact Joel T Stoffregen?
Joel T Stoffregen's office phone (per the USPTO public roster) is 720-695-3080. 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.