Inventor · disambiguated record
Friedhelm Schwerdtle
Also filed as: SCHWERDTLE FRIEDHELM
7 granted patents·155 citations·filing 1973–1995
86Inventor score
Files withHOECHST AG7
Top patents by PatentIndex Score
7 records- 0196US3954442AHerbicidal compositionsHOECHST AG·Filed 1973·Granted May 4, 1976·89 cites·9 claims
- 0295US4531969AHerbicidal esters of D-1-(phenoxy-4-phenoxy)propionic acidHOECHST AG·Filed 1978·Granted Jul 30, 1985·36 cites·12 claims
- 0375US4692181AHerbicidal compositionsHOECHST AG·Filed 1982·Granted Sep 8, 1987·8 cites·7 claims
- 0465US5254527AOptically active herbicidal ethyl-2-(4-(6-chloro-benzoxazol-2-yloxy)-phenoxy)-propionateHOECHST AG·Filed 1991·Granted Oct 19, 1993·9 cites·12 claims
- 0565US4830658AHerbicidal compositionsHOECHST AG·Filed 1986·Granted May 16, 1989·8 cites·7 claims
- 0659US4047932AHerbicidal agentsHOECHST AG·Filed 1975·Granted Sep 13, 1977·4 cites·5 claims
- 0735US5712226AOptically active D-pyridyloxy phenoxy propionate herbicidesHOECHST AG·Filed 1995·Granted Jan 27, 1998·1 cites·18 claims
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →