P

Inventor

GEIGER FRIEDHELM

14 patents
⚠️ This page may combine multiple inventors who share the name “GEIGER FRIEDHELM”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.

DEGUSSA

10 patents
US5990349ANov 23, 1999

Process for the preparation of D,L-methionine or the salt thereof

DEGUSSA42 citations94
US5770769AJun 23, 1998

Process for the preparation of D,L-methionine or the salt thereof

DEGUSSA59 citations94
US4391988AJul 5, 1983

Process for the production of aqueous sodium methioninate solutions

DEGUSSA8 citations72
US4391987AJul 5, 1983

Process for the production of aqueous sodium methioninate solutions

DEGUSSA7 citations72
US4052445AOct 4, 1977

Process for the production of alkyl sulfonic acids

DEGUSSA6 citations72
US4038276AJul 26, 1977

Process for the production of finely divided solid cyanuric chloride

DEGUSSA9 citations72
US3949060AApr 6, 1976

Process for the production of cyanogen chloride

DEGUSSA2 citations62
US3961023AJun 1, 1976

Process for the production of cyanogen chloride and hydrogen chloride

DEGUSSA3 citations61
US3947552AMar 30, 1976

Process for the purification of cyanogen chloride

DEGUSSA1 citations51
US4434148AFeb 28, 1984

Working up of the residual gases resulting from the production of cyanuric chloride

DEGUSSA0 citations46

GEIGER FRIEDHELM

2 patents
US4239696ADec 16, 1980

Process for the production of alkyl sulfonic acids

GEIGER FRIEDHELM26 citations79
US3957950AMay 18, 1976

Process for preparing pure chlorine

GEIGER FRIEDHELM1 citations49

BOLZE RUDOLF

1 patent
US4518801AMay 21, 1985

Process for the hydrolysis of 5-(β-methylmercaptoethyl)-hydantoin

BOLZE RUDOLF6 citations65

SIEMENS AG

1 patent
US7493524B2Feb 17, 2009

Network 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 properties

SIEMENS AG4 citations50