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O'Fallon, Missouri

Patent attorneys in O'Fallon

O'Fallon, Missouri is home to 5 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 Mastercard International Incorporated, Law Office of Martha A. Michaels, and Synergetics, Inc..

Raymond W Deppen

Reg. 64019
Patent attorney

O'Fallon, MO · 63368

314-398-7638

Timothy B McBride

Reg. 47781
Patent attorney

Mastercard International Incorporated

O'Fallon, MO · 63368

636-459-5428

Martha Ann Michaels

Reg. 20453
Patent attorney

Law Office of Martha A. Michaels

O'Fallon, MO · 63366

636-379-5809

Peter T Rasche

Reg. 57527
Patent attorney

Synergetics, Inc.

O'Fallon, MO · 63368

636-794-5057

Mary V Vollmar

Reg. 81678
Patent agent

O'Fallon, MO · 63368

314-365-6590

Common questions

Do patent attorneys in O'Fallon 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 O'Fallon tend to track the broader Missouri legal market.
How many USPTO practitioners list a O'Fallon office?
5 USPTO-registered patent practitioners list a O'Fallon 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 O'Fallon practitioner remotely?
Yes. All filings happen through USPTO's electronic Patent Center — no in-person presence is required. A O'Fallon-based practitioner is convenient for local inventor signings and in-person meetings but not a requirement for representation.
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