Inventor · disambiguated record
Ralph S. Frost
Also filed as: FROST RALPH S
3 granted patents·40 citations·filing 1980–1991
71Inventor score
Files withCHEMETRON RAILWAY PROD3
Top patents by PatentIndex Score
3 records- 0170US4938460AApparatus for air quenching railway headsCHEMETRON RAILWAY PROD·Filed 1987·Granted Jul 3, 1990·15 cites·13 claims
- 0260US5183519AMethod for quenching railway rail headsCHEMETRON RAILWAY PROD·Filed 1991·Granted Feb 2, 1993·13 cites·11 claims
- 0351US4324048ALocator for rail aligning deviceCHEMETRON RAILWAY PROD·Filed 1980·Granted Apr 13, 1982·12 cites·3 claims
Join the waitlist — get patent alerts
Get an alert when Ralph S. Frost 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 →