Inventor · disambiguated record
Friedhelm Geiger
Also filed as: GEIGER FRIEDHELM · HENSEL JORG
14 granted patents·174 citations·filing 1973–2004
92Inventor score
Top patents by PatentIndex Score
14 records- 0192US5770769AProcess for the preparation of D,L-methionine or the salt thereofDEGUSSA·Filed 1996·Granted Jun 23, 1998·59 cites·31 claims
- 0289US4239696AProcess for the production of alkyl sulfonic acidsGEIGER FRIEDHELM·Filed 1976·Granted Dec 16, 1980·26 cites·13 claims
- 0387US5990349AProcess for the preparation of D,L-methionine or the salt thereofDEGUSSA·Filed 1998·Granted Nov 23, 1999·42 cites·17 claims
- 0476US4038276AProcess for the production of finely divided solid cyanuric chlorideDEGUSSA·Filed 1976·Granted Jul 26, 1977·9 cites·10 claims
- 0566US4052445AProcess for the production of alkyl sulfonic acidsDEGUSSA·Filed 1976·Granted Oct 4, 1977·6 cites·13 claims
- 0655US4518801AProcess for the hydrolysis of 5-(β-methylmercaptoethyl)-hydantoinBOLZE RUDOLF·Filed 1984·Granted May 21, 1985·6 cites·16 claims
- 0742US7493524B2Network with redundancy properties, a branching unit for a user device in a network, redundancy manager for a network with redundancy properties and method for operating a network with redundancy propertiesSIEMENS AG·Filed 2004·Granted Feb 17, 2009·4 cites·17 claims
- 0842US4391988AProcess for the production of aqueous sodium methioninate solutionsDEGUSSA·Filed 1982·Granted Jul 5, 1983·8 cites·6 claims
- 0941US3961023AProcess for the production of cyanogen chloride and hydrogen chlorideDEGUSSA·Filed 1975·Granted Jun 1, 1976·3 cites·18 claims
- 1040US4391987AProcess for the production of aqueous sodium methioninate solutionsDEGUSSA·Filed 1982·Granted Jul 5, 1983·7 cites·10 claims
- 1131US3949060AProcess for the production of cyanogen chlorideDEGUSSA·Filed 1974·Granted Apr 6, 1976·2 cites·11 claims
- 1230US3957950AProcess for preparing pure chlorineGEIGER FRIEDHELM·Filed 1973·Granted May 18, 1976·1 cites·15 claims
- 1330US3947552AProcess for the purification of cyanogen chlorideDEGUSSA·Filed 1974·Granted Mar 30, 1976·1 cites·13 claims
- 1425US4434148AWorking up of the residual gases resulting from the production of cyanuric chlorideDEGUSSA·Filed 1979·Granted Feb 28, 1984·0 cites·8 claims
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →