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Houston, TX, United States of America

Denka Chemical Corporation

USPTO Granted Patents = 31

Forward Citations = 262

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17 inventors (with patents filed for the assignee):

Bruno J Barone (12 out of 22 patents)

Ralph O Kerr (9 out of 15 patents)

Gaylon T Click (4 out of 4 patents)

4. Nathan L Turner (3 out of 4 patents)

5. Kenneth D Fitzgerald (3 out of 3 patents)

6. Morris S Edmondson (2 out of 20 patents)

7. Lawrence A Smith, Jr (1 out of 92 patents)

8. Robert P Arganbright (1 out of 19 patents)

9. Alfio J Besozzi (1 out of 7 patents)

10. James D Henery (1 out of 2 patents)

11. Gabe W Strybos, Jr (1 out of 1 patent)

12. Hubert R O'Neal (1 out of 1 patent)

13. Rosario J Perrone (1 out of 1 patent)

14. Marvin Z Woskow (1 out of 1 patent)

15. Edwin F Hoff, Jr (1 out of 1 patent)

Core Competencies:

Maleic Anhydride

Chloroprene Polymers

Oxidation Catalysts

Dicarboxylic Anhydrides

Partial Oxidation

Sulfur Compounds

Copolymers

Catalyst Structure

Viscosity Stabilization

Polymerization

Steam Regeneration

High Purity Recovery

31 patents: Sort by Forward Citations

1. 4596878 - Process for the production of maleic anhydride (1986-06-24),

2. 4565880 - Maleic anhydride process (1986-01-21),

3. 4515899 - Steam regeneration of phosphorus treated vanadium-phosphorus-oxygen (1985-05-07),

4. 4481313 - Process for instantaneous peptization of chloroprene-sulfur copolymers (1984-11-06),

5. 4283510 - Polychloroprene treated with alkylated diaryl amine (1981-08-11),

6. 4283307 - Catalyst structure for the partial oxidation of n-butane to produce (1981-08-11),

7. 4251390 - Partial oxidation catalyst (1981-02-17),

8. 4250083 - Viscosity stabilized chloroprene-sulfur copolymers (1981-02-10),

9. 4225682 - Sulfur modified polychloroprene with improved storage stability (1980-09-30),

10. 4220574 - Polychloroprene plasticized with corn oil (1980-09-02),

11. 4212780 - Polychloroprene non-phasing solvent cements (1980-07-15),

12. 4203905 - Method for preparing stable, liquid tetrahydrophthalic anhydride for use (1980-05-20),

13. 4202826 - Process for preparing anhydride from alkanes (1980-05-13),

14. 4179404 - Catalyst preparative method (1979-12-18),

15. 4172961 - Production of 1,4-butanediol (1979-10-30),

Company Overview

Denka Chemical Corporation is a prominent player in the chemical industry, specializing in the development and manufacturing of a diverse range of chemical products. The company focuses on advanced materials, including elastomers, specialty chemicals, and electronic materials, catering to various sectors such as automotive, electronics, and healthcare. With a commitment to innovation and sustainability, Denka leverages its expertise to deliver high-performance solutions that meet the evolving needs of its global clientele.

Profile summary synthesized from public USPTO records and patent filings.

Company Badge

USPTO Data Jan 1 1976 - Oct 13 2026

31 Patents

#165 in Houston, TX

#599 in Texas

#10,927 in US

#21,260 in the World

Houston, TX, United States of America

Denka Chemical Corporation

Forward Citations = 262

17 inventors:

Bruno J Barone (12 out of 22 patents)

Ralph O Kerr (9 out of 15 patents)

Gaylon T Click (4 out of 4 patents)

4. Nathan L Turner (3 out of 4 patents)

5. Kenneth D Fitzgerald (3 out of 3 patents)

IDiyas Innovation Intelligence. (2026). Company Patent Portfolio: Denka Chemical Corporation. Retrieved from https://idiyas.com/company/denka-chemical

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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