Registered patent agent
John E Campbell
Firm
John E Campbell
Address
132 GLEAVES RD
SPRINGFIELD, PA, 19064
US
Phone
Registered as
Registered patent agent
Other patent attorneys in SPRINGFIELD, Pennsylvania
- Paul J. DoughertyPaul J. Dougherty
- Vincent P. JonesUSPTO Reg. 82158
- Arthur J KyriazisPhiladelphia Pharma & Biotech, Inc (PPBI)
- Jonathan J UnderwoodUSPTO Reg. 77495
Frequently asked
Frequently asked about John E Campbell
Is John E Campbell a registered patent attorney?
John E Campbell is a registered patent agent (USPTO Registration Number 52687). Patent agents can prepare and file patent applications but cannot give legal advice on infringement; for legal counsel, look for an attorney.
Where is John E Campbell located?
John E Campbell's office is in SPRINGFIELD, Pennsylvania (19064). Affiliated with John E Campbell.
What firm does John E Campbell work at?
John E Campbell is listed as affiliated with John E Campbell on the USPTO Office of Enrollment and Discipline practitioner roster.
How do I contact John E Campbell?
John E Campbell's office phone (per the USPTO public roster) is 845-489-4148. 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.