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Lampertheim, Germany

Witco Vinyl Additives Gmbh

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USPTO Granted Patents = 13

Forward Citations = 94

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15 inventors (with patents filed for the assignee):

Wolfgang Wehner (11 out of 63 patents)

Hans-Helmut Friedrich (7 out of 48 patents)

Rolf Drewes (4 out of 15 patents)

4. Karl Josef Kuhn (3 out of 10 patents)

5. Horst Zinke (2 out of 26 patents)

6. Rudolf Pfaendner (1 out of 90 patents)

7. Ernst Minder (1 out of 26 patents)

8. Heinz Herbst (1 out of 38 patents)

9. Kornelia Malzacher (1 out of 7 patents)

10. Bruno Hilti (1 out of 27 patents)

11. Jürgen Pfeiffer (1 out of 1 patent)

12. Rolf Drewes (1 out of 1 patent)

13. Hans-Ludwig Mehner (1 out of 3 patents)

14. Kurt Hoffmann (1 out of 32 patents)

15. Markus Kolb (1 out of 5 patents)

13 patents: Sort by Forward Citations

1. 6310128 - Halogen-containing polymers provided with an antistatic agent (2001-10-30),

2. 6274654 - 1,3-Disubstituted 6-aminouracils for stabilizing halogenated polymers (2001-08-14),

3. 6232375 - 4-aminopyrimidinones and oxazolidino-4-aminopyrimidinones, process for their preparation and their use for stabilizing halogen-containing polymers (2001-05-15),

4. 6211270 - Cyanoacetylureas for stabilizing halogenated polymers (2001-04-03),

5. 6194494 - Stabiliser combinations for chlorine-containing polymers (2001-02-27),

6. 6174941 - NH2-modified 6-aminouracils as stabilizers for halogenated polymers (2001-01-16),

7. 6156830 - 5-substituted 6-aminouracils as stabilizers for halogenated polymers (2000-12-05),

8. 6136900 - Stabilized polyvinyl chloride (2000-10-24),

9. 6084013 - Stabilizer system for chlorine-containing polymers (2000-07-04),

10. 6013703 - Stabilizer combination for chlorine-containing polymers (2000-01-11),

11. 6002004 - Pyrrolodiazine derivatives as stabilizers for chilorine-containing (1999-12-14),

12. 5985964 - Stabilized polyvinyl chloride containing recycled material (1999-11-16),

13. 5969015 - Monomeric and oligomeric bisphosphites as stabilisers for polyvinyl (1999-10-19),

Company Overview

Witco Vinyl Additives GmbH, based in Lampertheim, Germany, specializes in the development and manufacturing of high-performance additives for the vinyl industry. The company focuses on enhancing the properties of vinyl products, offering solutions that improve processing, durability, and overall performance. Witco's expertise spans various applications, including construction materials, automotive components, and consumer goods, positioning it as a key player in the global vinyl additives market.

Profile summary synthesized from public USPTO records and patent filings.

Company Badge

USPTO Data Jan 1 1976 - Oct 27 2026

13 Patents

#1 in Lampertheim

#3,086 in Germany

#45,104 in the World

Lampertheim, Germany

Witco Vinyl Additives Gmbh

Forward Citations = 94

15 inventors:

Wolfgang Wehner (11 out of 63 patents)

Hans-Helmut Friedrich (7 out of 48 patents)

Rolf Drewes (4 out of 15 patents)

4. Karl Josef Kuhn (3 out of 10 patents)

5. Horst Zinke (2 out of 26 patents)

IDiyas Innovation Intelligence. (2026). Company Patent Portfolio: Witco Vinyl Additives Gmbh. Retrieved from https://idiyas.com/company/witco-vinyl-additives

Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile

Data Sources: USPTO Patent Grant XML, Patent Center, EPO & CIPO • Normalized by IDiyas Innovation Graph. Methodology & provenance architecturePlease report any incorrect information to [email protected]

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