Registered patent attorney
Joseph T Helmsen
Firm
DLA Piper LLP
Address
1650 Market Street
Suite 5000
Philadelphia, PA, 19103-7300
US
Phone
Registered as
Registered patent attorney
Other attorneys at DLA Piper LLP
- Margaret A. BaxterUSPTO Reg. 78109 · Los Angeles, CA
- Roshan K BhattaraiUSPTO Reg. 70092 · Washington, DC
- Megan E. BowersUSPTO Reg. 73178 · Philadelphia, PA
- Nancy Carroll BramanUSPTO Reg. 77430 · Boston, MA
- Robert BuergiUSPTO Reg. 58125 · East Palo Alto, CA
- Jeffrey T CastellanoUSPTO Reg. 61424 · Wilmington, DE
- Grace L. CawdreyUSPTO Reg. 80986 · Boston, MA
- Lesley P ChuangUSPTO Reg. 70795 · Boston, MA
Other patent attorneys in Philadelphia, Pennsylvania
- Chioma C. AbaraUSPTO Reg. 75943
- Robert Allen AboudSmithKline Beecham CORP
- Comfort O. AdeyemiUSPTO Reg. 82489
- Yousuf U. AhmedDLA Piper LLP (US)
- Benjamin A. AilesMcCarter & English LLP
- Jeffrey C AldridgeVan Court & Aldridge LLP
- Ross E AlexanderFlaster Greenberg P.C.
- Curtis R AltmannMendelsohn Dunleavy, P.C.
Frequently asked
Frequently asked about Joseph T Helmsen
Is Joseph T Helmsen a registered patent attorney?
Yes. Joseph T Helmsen is a registered patent attorney with the United States Patent and Trademark Office (USPTO Registration Number 54163). Registration is verified against the USPTO Office of Enrollment and Discipline roster.
Where is Joseph T Helmsen located?
Joseph T Helmsen's office is in Philadelphia, Pennsylvania (19103-7300). Affiliated with DLA Piper LLP.
What firm does Joseph T Helmsen work at?
Joseph T Helmsen is listed as affiliated with DLA Piper LLP on the USPTO Office of Enrollment and Discipline practitioner roster.
How do I contact Joseph T Helmsen?
Joseph T Helmsen's office phone (per the USPTO public roster) is 215-656-2480. 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.