Inventor · disambiguated record
Gerhard Friedhofen
Also filed as: FRIEDHOFEN GERHARD
5 granted patents·61 citations·filing 1977–1993
81Inventor score
Files withBAYER AG5
Top patents by PatentIndex Score
5 records- 0182US5304525ACatalyst for the preparation of anilineBAYER AG·Filed 1993·Granted Apr 19, 1994·23 cites·7 claims
- 0274US4348542AProcess for the production of mixtures of alkylated aromatic hydroxy compoundsBAYER AG·Filed 1980·Granted Sep 7, 1982·11 cites·3 claims
- 0374US4319053AProcess for the preparation of 4,4'-dihydroxy-3,3',5,5'-tetraalkyl-diphenylalkanesBAYER AG·Filed 1977·Granted Mar 9, 1982·10 cites·8 claims
- 0451US4129612A1,1,3,4,6-Pentamethyl-3-(3,5-dimethyl-4-hydroxyphenyl)-indan-5-ol polycarbonatesBAYER AG·Filed 1977·Granted Dec 12, 1978·10 cites·19 claims
- 0542US4371691APreparation of polycarbonate from specific crude bisphenolsBAYER AG·Filed 1980·Granted Feb 1, 1983·7 cites·6 claims
Join the waitlist — get patent alerts
Get an alert when Gerhard Friedhofen 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 →