Membership
Tour
Register
Log in
Manfred Langer
Follow
Person
Hanau, DE
People
Overview
Industries
Organizations
People
Information
Impact
Patents Grants
last 30 patents
Information
Patent Grant
Production of 2, 3-epoxypropyl trialkyl ammonium chlorides
Patent number
5,637,740
Issue date
Jun 10, 1997
Degussa Aktiengesellschaft
Wolfgang Fischer
C07 - ORGANIC CHEMISTRY
Information
Patent Grant
Process for the production of guanidine hydrochloride
Patent number
4,542,240
Issue date
Sep 17, 1985
Degussa Aktiengesellschaft
Peter Schalke
C07 - ORGANIC CHEMISTRY
Information
Patent Grant
Process for recycling of used lubricating oils
Patent number
4,366,049
Issue date
Dec 28, 1982
Leybold-Heraeus GmbH
Helmut Knorre
B01 - PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
Information
Patent Grant
Process for the production of cationic starch ethers
Patent number
4,332,935
Issue date
Jun 1, 1982
Degussa Aktiengesellschaft
Wolfgang Fischer
C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
Information
Patent Grant
Procedure for the reprocessing of used lubricating oils
Patent number
4,255,252
Issue date
Mar 10, 1981
Deutsche Gold- und Silber-Scheideanstalt vormals Roessler
Helmut Knorre
C10 - PETROLEUM, GAS OR COKE INDUSTRIES TECHNICAL GASES CONTAINING CARBON MON...
Information
Patent Grant
Process for the reprocessing of used lubricating oils (II)
Patent number
4,252,637
Issue date
Feb 24, 1981
Deutsche Gold- und Silber-Scheideanstalt vormals Roessler
Helmut Knorre
C10 - PETROLEUM, GAS OR COKE INDUSTRIES TECHNICAL GASES CONTAINING CARBON MON...
Information
Patent Grant
Flame retardant agent solution of phosphoric acid containing conden...
Patent number
4,219,456
Issue date
Aug 26, 1980
Deutsche Gold- und Silber-Scheideanstalt vormals Roessler
Manfred Langer
C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
Information
Patent Grant
Process for the production of crystalline alcohol free alkali metal...
Patent number
4,150,244
Issue date
Apr 17, 1979
Deutsche Gold- und Silber-Scheideanstalt vormals Roessler
Helmut Knorre
C07 - ORGANIC CHEMISTRY
Information
Patent Grant
Setting retarder
Patent number
4,124,406
Issue date
Nov 7, 1978
Deutsche Gold- und Silber-Scheideanstalt vormals Roessler
Helmut Knorre
C04 - CEMENTS CONCRETE ARTIFICIAL STONE CERAMICS REFRACTORIES