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Gerhard Pohl
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Hanau, DE
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Patents Grants
last 30 patents
Information
Patent Grant
Bisguanamine
Patent number
4,389,333
Issue date
Jun 21, 1983
Degussa Aktiengesellschaft
Peter Werle
C07 - ORGANIC CHEMISTRY
Information
Patent Grant
Bisguanamines
Patent number
4,339,578
Issue date
Jul 13, 1982
Degussa Aktiengesellschaft
Peter Werle
C07 - ORGANIC CHEMISTRY
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
Process for the purification of pentaerythritol
Patent number
4,329,519
Issue date
May 11, 1982
Degussa Aktiengesellschaft
Peter Werle
C07 - ORGANIC CHEMISTRY
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 separation of cadmium (Cd.sup.++)-ions from sewage,...
Patent number
4,172,784
Issue date
Oct 30, 1979
Deutsche Gold- und Silber-Scheideanstalt vormals Roessler
Helmut Knorre
C01 - INORGANIC CHEMISTRY
Information
Patent Grant
Process for the separation of Cu.sup.++ -ions from sewage, waste wa...
Patent number
4,172,785
Issue date
Oct 30, 1979
Deutsche Gold- und Silber-Scheideanstalt vormals Roessler
Helmut Knorre
C01 - INORGANIC CHEMISTRY
Information
Patent Grant
Process for preventing caking and obtaining flowability of alkali c...
Patent number
4,107,274
Issue date
Aug 15, 1978
Duetsche Gold- und Silber-Scheideanstalt vormals Roessler
Helmut Knorre
C01 - INORGANIC CHEMISTRY