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Hans-Dieter Sitz
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Rommerskirchen, DE
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Patents Grants
last 30 patents
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Patent Grant
Leather oiling preparations and their use
Patent number
5,741,434
Issue date
Apr 21, 1998
Henkel Kommanditgesellschaft auf Aktien
Wolfgang Ritter
C14 - SKINS HIDES PELTS LEATHER
Information
Patent Grant
Process for producing esters of (meth) acrylic acid and polyhydric...
Patent number
5,648,518
Issue date
Jul 15, 1997
Henkel Kommanditgesellschaft auf Aktien
Wolfgang Ritter
C07 - ORGANIC CHEMISTRY
Information
Patent Grant
New leather oiling preparations and their use
Patent number
5,567,343
Issue date
Oct 22, 1996
Henkel Kommanditgesellschaft auf Aktien
Wolfgang Ritter
C14 - SKINS HIDES PELTS LEATHER
Information
Patent Grant
Reactive systems and/or polymer composition for tissue contact with...
Patent number
5,461,124
Issue date
Oct 24, 1995
Henkel Kommanditgesellschaft auf Aktien
Wolfgang Ritter
A61 - MEDICAL OR VETERINARY SCIENCE HYGIENE
Information
Patent Grant
Process for the improved production of (meth)acrylic acid esters of...
Patent number
5,350,877
Issue date
Sep 27, 1994
Henkel Kommanditgesellschaft auf Aktien
Wolfgang Ritter
C07 - ORGANIC CHEMISTRY
Information
Patent Grant
Process for exchanging inhibitor(s) in olefinically unsaturated sys...
Patent number
5,278,336
Issue date
Jan 11, 1994
Henkel Kommanditgesellschaft auf Aktien
Hans-Dieter Sitz
C07 - ORGANIC CHEMISTRY
Information
Patent Grant
Dry neutralization process for organic liquid phases
Patent number
5,210,281
Issue date
May 11, 1993
Henkel Kommanditgesellschaft auf Aktien
Wolfgang Ritter
C07 - ORGANIC CHEMISTRY
Information
Patent Grant
Process for the improved production of (meth)acrylic acid esters of...
Patent number
5,198,574
Issue date
Mar 30, 1993
Henkel Kommanditgesellschaft auf Aktien
Wolfgang Ritter
C07 - ORGANIC CHEMISTRY
Information
Patent Grant
Process for the improved production of (meth)acrylic acid esters of...
Patent number
5,159,106
Issue date
Oct 27, 1992
Henkel Kommanditgesellschaft auf Aktien
Wolfgang Ritter
C07 - ORGANIC CHEMISTRY