Registered patent attorney
John Sowden ChildJr
Firm
Paul & Paul
Address
Two Logan Square
100 N. 18th St., Ste 830
Philadelphia, PA, 19103-2728
US
Phone
Registered as
Registered patent attorney
Other attorneys at Paul & Paul
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 John Sowden Child
Is John Sowden Child a registered patent attorney?
Yes. John Sowden Child is a registered patent attorney with the United States Patent and Trademark Office (USPTO Registration Number 28833). Registration is verified against the USPTO Office of Enrollment and Discipline roster.
Where is John Sowden Child located?
John Sowden Child's office is in Philadelphia, Pennsylvania (19103-2728). Affiliated with Paul & Paul.
What firm does John Sowden Child work at?
John Sowden Child is listed as affiliated with Paul & Paul on the USPTO Office of Enrollment and Discipline practitioner roster.
How do I contact John Sowden Child?
John Sowden Child's office phone (per the USPTO public roster) is 215-568-4900. 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.