Inventor · disambiguated record

Douglas C. Ruhmann

Also filed as: RUHMANN DOUGLAS C

2 granted patents·156 citations·filing 1981–1982

69Inventor score
Technology areasB61D
Files withACF IND INC2

Top patents by PatentIndex Score

2 records

Join the waitlist — get patent alerts

Get an alert when Douglas C. Ruhmann files or is granted a new patent.

We store only your email — no account needed. See our privacy policy.

Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →