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King of Prussia, Pennsylvania

Patent attorneys in King of Prussia

King of Prussia, Pennsylvania is home to 35 USPTO-registered patent practitioners. Working with a local practitioner can streamline in-person meetings for invention disclosures, signing inventor declarations, and reviewing prior-art search results — but every USPTO practitioner is licensed to practice nationally, so a non-local choice is also valid. Local firms with the most USPTO-registered practitioners include Buchanan Ingersoll & Rooney PC, CSL, and GlaxoSmith Kline.

Jonathan H Spadt

Reg. 45122
Patent attorney

Buchanan Ingersoll & Rooney PC

King of Prussia, PA · 19406

610-407-0700

Victoria E Spataro

Reg. 58005
Patent attorney

CSL

King of Prussia, PA · 19406

610-290-7925

Ernest G Szoke

Reg. 22135
Patent attorney

King Of Prussia, PA · 19406

610-783-1560

Gwynedd Warren

Reg. 45200
Patent attorney

GlaxoSmith Kline

King of Prussia, PA · 19406-0939

610-270-7241

Ling Zhong

Reg. 48290
Patent attorney

RatnerPrestia

King of Prussia, PA · 19406

610-407-0700

Common questions

Do patent attorneys in King of Prussia cost more than the national average?
Patent attorney fees vary primarily by experience and complexity of the invention, not by city. A typical provisional patent application in the US runs $1,500 to $5,000; a non-provisional utility filing runs $5,000 to $15,000. Hourly rates in King of Prussia tend to track the broader Pennsylvania legal market.
How many USPTO practitioners list a King of Prussia office?
35 USPTO-registered patent practitioners list a King of Prussia mailing address on the OEDCI roster. You can sort by firm size and contact each directly using the phone numbers shown.
Can I work with a King of Prussia practitioner remotely?
Yes. All filings happen through USPTO's electronic Patent Center — no in-person presence is required. A King of Prussia-based practitioner is convenient for local inventor signings and in-person meetings but not a requirement for representation.
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