Inventor · disambiguated record
Frank R. Erfurth
Also filed as: ERFURTH FRANK R
1 granted patent·9 citations·filing 1980–1980
31Inventor score
Technology areasB61D
Files withMORRISON KNUDSEN CO1
Top patents by PatentIndex Score
1 recordJoin the waitlist — get patent alerts
Get an alert when Frank R. Erfurth 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 →