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For the Inventor, By the Inventor

Frankfurt, Germany

Rutgerswerke Aktiengesellschaft

Calculating rank
USPTO Granted Patents = 140

Forward Citations = 988

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177 inventors (with patents filed for the assignee):

goldMedal Winfried Orth (23 out of 25 patents)

silverMedal Werner Fickert (20 out of 21 patents)

bronzeMedal Arno Gardziella (15 out of 18 patents)

4.  Gerd Collin (12 out of 12 patents)

5.  Achim Hansen (12 out of 14 patents)

6.  Karl Jellinek (11 out of 11 patents)

7.  Hans W Kleffner (9 out of 10 patents)

8.  Herbert Beneke (9 out of 9 patents)

9.  Jurgen Zehrfeld (9 out of 11 patents)

10.  Jurgen Stadelhofer (9 out of 9 patents)

11.  Bernhard Seubert (8 out of 8 patents)

12.  Wolfgang Weiss (8 out of 9 patents)

13.  Emmerich Pastorek (8 out of 8 patents)

14.  Josef Suren (7 out of 9 patents)

15.  Stephan Schröter (6 out of 17 patents)


Core Competencies:
Binding Agents
Heat-Curable Tannin
Lignin Modifiers
Novel Hardening Agents
Composite Materials
Epoxy Hardening Agents
Polysulfide Sheeting
Sinterable Carbon Powder
Chemical Decontamination
Non-Woven Textiles
Corrosion Protection
Food Products

140 patents:

1. 5556705 - Neutral metal complex salts (1996-09-17),
2. 5532330 - Heat-curable tannin-based binding agents (1996-07-02),
3. 5525698 - Polymerizable epoxide mixtures and process (1996-06-11),
4. 5520482 - Barrier to prevent spread of soil contamination (1996-05-28),
5. 5494675 - Anti-dandruff shampoo (1996-02-27),
6. 5486538 - Precious metal humates and their preparations (1996-01-23),
7. 5456935 - Food products (1995-10-10),
8. 5444030 - Metal complexes with a high coordination number (1995-08-22),
9. 5439863 - Neutral metal complex salts (1995-08-08),
10. 5434225 - Amine-unsaturated epoxidized polysulfide addition products (1995-07-18),
11. 5429865 - Composite materials (1995-07-04),
12. 5399606 - Thermosetting plastic powder mixtures (1995-03-21),
13. 5395913 - Polymerizable epoxide mixtures and process using Lewis base complexes (1995-03-07),
14. 5382608 - Binder mixtures containing reactive group containing lignin and novolaks (1995-01-17),
15. 5380862 - Preparation of isomer-free 2,5-dichloro-pyridine (1995-01-10),
Company Overview
Rutgerswerke Aktiengesellschaft, headquartered in Frankfurt, Germany, specializes in the development and manufacturing of advanced binding agents. The company focuses on innovative solutions in heat-curable tannins, lignin modifiers, and novel hardening agents, catering to diverse applications in composite materials and epoxy hardening. Additionally, Rutgerswerke is known for its expertise in polysulfide sheeting and sinterable carbon powder, positioning itself as a key player in the materials science sector.
Profile summary synthesized from public USPTO records and patent filings.

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USPTO Data Jan 1 1976 - Nov 3 2026

140 Patents

#20 in Frankfurt

#437 in Germany

#5,788 in the World

Frankfurt, DE
Frankfurt, Germany

Rutgerswerke Aktiengesellschaft

Forward Citations = 988

177 inventors:

goldMedal Winfried Orth (23 out of 25 patents)

silverMedal Werner Fickert (20 out of 21 patents)

bronzeMedal Arno Gardziella (15 out of 18 patents)

4.  Gerd Collin (12 out of 12 patents)

5.  Achim Hansen (12 out of 14 patents)

IDiyas Innovation Intelligence. (2026). Company Patent Portfolio: Rutgerswerke Aktiengesellschaft. Retrieved from https://idiyas.com/company/rutgerswerke-ag

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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