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Dallas, TX, United States of America

Occidental Chemical Corporation

USPTO Granted Patents = 462

CIPO Patents = 5

EPO Patents = 15

Trademarks = 23

Forward Citations = 3,129

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331 inventors (with patents filed for the assignee):

David Y Tang (30 out of 30 patents)

Henry C Lin (26 out of 32 patents)

Rodney L Klausmeyer (22 out of 30 patents)

4. John Lee Dawkins (22 out of 24 patents)

5. Michael J Fifolt (21 out of 23 patents)

6. Jeffrey S Stults (21 out of 35 patents)

7. Willis T Schwartz (20 out of 29 patents)

8. Keith S Kramer (17 out of 25 patents)

9. Tilak V Bommaraju (17 out of 26 patents)

10. Darrell Gene Hollis (16 out of 16 patents)

11. Ramesh Krishnamurti (15 out of 35 patents)

12. Lawrence B Fertel (14 out of 15 patents)

13. Sandor M Nagy (14 out of 109 patents)

14. William S Derwin (14 out of 14 patents)

15. Mohan Singh Saran (12 out of 16 patents)

Core Competencies:

Chlorinated Hydrocarbons

Photochlorination

Chloralkali Process

Halogenated Propanes

Oxychlorination

Polyvinyl Chloride Resins

Vinyl Monomer Polymerization

Benzoyl Halides

Dehalogenation

Ring Halogenation

Polyimidesiloxane Adhesive

Aromatic Compounds

462 patents: Sort by Forward Citations

1. 12435019 - Process for the production of chlorinated hydrocarbons (2025-10-07),

2. 12180133 - Photochlorination of partially-chlorinated chloromethanes to carbon tetrachloride (2024-12-31),

3. 12054444 - Photochlorination of chloroform to carbon tetrachloride (2024-08-06),

4. 11945761 - Process for the production of chlorinated hydrocarbons (2024-04-02),

5. 11780792 - Photochlorination of partially-chlorinated chloromethanes to carbon tetrachloride (2023-10-10),

6. 11584703 - Photochlorination of chloroform to carbon tetrachloride (2023-02-21),

7. 11565988 - Method for making 1,1,3,3-tetrachloropropene (2023-01-31),

8. 11104627 - Method for making 1,1,3,3-tetrachloropropene (2021-08-31),

9. 10847825 - Chloralkali process (2020-11-24),

10. 10787405 - Photochlorination of chloroform to carbon tetrachloride (2020-09-29),

11. 10787404 - Methods for producing halogenated propanes (2020-09-29),

12. 10787403 - Methods of making chlorinated hydrocarbons (2020-09-29),

13. 10562832 - Method for making 1,1,3,3-tetrachloropropene (2020-02-18),

14. 10526261 - Methods of making chlorinated hydrocarbons (2020-01-07),

15. 10207970 - Methods for recovering chlorinated hydrocarbons (2019-02-19),

Occidental Chemical Corporation (OxyChem) is a leading North American manufacturer of polyvinyl chloride (PVC) resins, chlorine, and caustic soda, key building blocks for a variety of indispensable products. With global production and marketing operations, OxyChem is committed to delivering innovative, sustainable solutions to customers through an array of applications including agriculture, construction, healthcare, plastics, and water treatment.

This text is generated by artificial intelligence and may not be accurate.

Company Badge

USPTO Data Jan 1 1976 - Dec 30 2025

462 Patents

#5 in Dallas, TX

#59 in Texas

#997 in US

#2,000 in the World

Dallas, TX, United States of America

Occidental Chemical Corporation

Forward Citations = 3,129

331 inventors:

David Y Tang (30 out of 30 patents)

Henry C Lin (26 out of 32 patents)

Rodney L Klausmeyer (22 out of 30 patents)

4. John Lee Dawkins (22 out of 24 patents)

5. Michael J Fifolt (21 out of 23 patents)

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