Registered patent attorney
Dennis J Butler
Firm
Panitch Schwarze Belisario & Nadel LLP
Address
2005 Market Street, Suite 2200
One Commerce Square
Philadelphia, PA, 19103
US
Phone
Registered as
Registered patent attorney
Other attorneys at Panitch Schwarze Belisario & Nadel LLP
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 Dennis J Butler
Is Dennis J Butler a registered patent attorney?
Yes. Dennis J Butler is a registered patent attorney with the United States Patent and Trademark Office (USPTO Registration Number 51519). Registration is verified against the USPTO Office of Enrollment and Discipline roster.
Where is Dennis J Butler located?
Dennis J Butler's office is in Philadelphia, Pennsylvania (19103). Affiliated with Panitch Schwarze Belisario & Nadel LLP.
What firm does Dennis J Butler work at?
Dennis J Butler is listed as affiliated with Panitch Schwarze Belisario & Nadel LLP on the USPTO Office of Enrollment and Discipline practitioner roster.
How do I contact Dennis J Butler?
Dennis J Butler's office phone (per the USPTO public roster) is 215-965-1282. 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.