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For the Inventor, By the Inventor

Düsseldorf, Germany

Degussa Gmbh


USPTO Granted Patents = 48

% Expired Patents = 22.9


Trademarks = 17

Forward Citations = 543

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136 inventors (with patents filed for the assignee):

goldMedal Walter Pfefferle (4 out of 87 patents)

silverMedal Mike Farwick (3 out of 50 patents)

bronzeMedal Daniel Ostgard (3 out of 3 patents)

4.  Matthias Beller (2 out of 81 patents)

5.  Harald Jakob (2 out of 40 patents)

6.  Alexander Zapf (2 out of 13 patents)

7.  Gerhard Arnold (2 out of 6 patents)

8.  Thomas Riermeier (2 out of 21 patents)

9.  Axel Monsees (2 out of 15 patents)

10.  Helmut Mangold (2 out of 44 patents)

11.  Christoph Weckbecker (2 out of 64 patents)

12.  Bettina Möckel (2 out of 14 patents)

13.  Werner Hartmann (2 out of 14 patents)

14.  Christopher R Proulx (2 out of 3 patents)

15.  Kai Rossen (2 out of 33 patents)


Core Competencies:
L-Amino Acids
Organosulfur Removal
Silica Properties
Catalysis
Chlorine Dioxide
Metallic Powders
Waste Treatment
Hydrophobic Silica
Sodium Percarbonate
Titanium Dioxide
Waste Water
Cyanide Destruction

48 patents:

1. 7820031 - Method and apparatus for converting and removing organosulfur and other oxidizable compounds from distillate fuels, and compositions obtained thereby (2010-10-26),
2. 7767180 - Precipitated silicas having special surface properties (2010-08-03),
3. 7759094 - Method for the production of L-amino acids using strains from the Enterobacteriaceae family which contain an enhanced lamb gene (2010-07-20),
4. 7718592 - Sodium percarbonate particles having a shell layer comprising thiosulfate (2010-05-18),
5. 7658907 - Titanium-aluminium mixed oxide powder (2010-02-09),
6. 7612237 - Process for preparing β-amino-α-hydroxycarboxamides (2009-11-03),
7. 7589081 - Nitrogen-containing monodentate phosphines and their use in catalysis (2009-09-15),
8. 7582800 - Process for preparing alkyl mercaptans in a multizone fixed bed reactor (2009-09-01),
9. 7579058 - Air brake line (2009-08-25),
10. 7531697 - Process for the preparation of aromatic aldehydes (2009-05-12),
11. 7427691 - Resolution of p-hydroxyphenyl-2-alkoxypropionic acids (2008-09-23),
12. 7368600 - Method for production of methionine from homoserine (2008-05-06),
13. 7306939 - Nucleotide sequences encoding the gpm gene (2007-12-11),
14. 7285330 - Texture-coated silica (2007-10-23),
15. 7282236 - Hydrophobic silica (2007-10-16),
Company Overview
Degussa GmbH, headquartered in Düsseldorf, Germany, specializes in the development and production of advanced chemical solutions. The company focuses on core technology areas including organosulfur compounds, precipitated silicas, and L-amino acids, catering to various industries such as pharmaceuticals, agriculture, and materials science. Additionally, Degussa is known for its expertise in catalysis, sodium percarbonate, chlorine dioxide synthesis, hydrophobic silica, and metallic powders, positioning itself as a key player in innovative chemical manufacturing.
Profile summary synthesized from public USPTO records and patent filings.

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USPTO Data Jan 1 1976 - Oct 20 2026

48 Patents

#17 in Düsseldorf

#1,107 in Germany

#14,561 in the World

Düsseldorf, DE
Düsseldorf, Germany

Degussa Gmbh

Forward Citations = 543

136 inventors:

goldMedal Walter Pfefferle (4 out of 87 patents)

silverMedal Mike Farwick (3 out of 50 patents)

bronzeMedal Daniel Ostgard (3 out of 3 patents)

4.  Matthias Beller (2 out of 81 patents)

5.  Harald Jakob (2 out of 40 patents)

IDiyas Innovation Intelligence. (2026). Company Patent Portfolio: Degussa Gmbh. Retrieved from https://idiyas.com/company/degussa

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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