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For the Inventor, By the Inventor

Lampertheim, Germany

Crompton Vinyl Additives Gmbh


USPTO Granted Patents = 2

% Expired Patents = 50.0

Trademarks = 1

Forward Citations = 12

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4 inventors (with patents filed for the assignee):

goldMedal Wolfgang Wehner (2 out of 63 patents)

silverMedal Rolf Drewes (1 out of 15 patents)

bronzeMedal Karl Josef Kuhn (1 out of 10 patents)

4.  Hans-Helmut Friedrich (1 out of 48 patents)


2 patents:

1. 7077981 - Chlorate-containing stabilizer system with nitrogen-containing synergists for stabilizing halogen-containing polymers (2006-07-18),
2. 6531533 - Stabilized halogen-containing polymers (2003-03-11),
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USPTO Data Jan 1 1976 - Sep 22 2026

2 Patents

#7 in Lampertheim

#10,684 in Germany

Lampertheim, DE
Lampertheim, Germany

Crompton Vinyl Additives Gmbh

Forward Citations = 12

4 inventors:

goldMedal Wolfgang Wehner (2 out of 63 patents)

silverMedal Rolf Drewes (1 out of 15 patents)

bronzeMedal Karl Josef Kuhn (1 out of 10 patents)

4.  Hans-Helmut Friedrich (1 out of 48 patents)

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