For the Inventor, By the Inventor

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Los Angeles, CA, United States of America

Occidental Petroleum

USPTO Granted Patents = 101

Trademarks = 8

Forward Citations = 2,557

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68 inventors (with patents filed for the assignee):

Charles K Choi (13 out of 14 patents)

Norman W Green (10 out of 12 patents)

Booker W Morey (8 out of 13 patents)

4. Fernando N Ore (7 out of 9 patents)

5. Richard D Ridley (6 out of 25 patents)

6. Kandaswamy Duraiswamy (6 out of 6 patents)

7. Allan S Sass (6 out of 10 patents)

8. Robert S Burton, Iii (5 out of 24 patents)

9. Joseph P Tassoney (5 out of 6 patents)

10. Edward F Wahl, Iii (5 out of 7 patents)

11. Robert E Lumpkin (5 out of 5 patents)

12. Samuel G Woinsky (5 out of 6 patents)

13. Donald E Garrett (4 out of 8 patents)

14. Richard M Gundzik (4 out of 4 patents)

15. Chang Y Cha (4 out of 43 patents)

Core Competencies:

Geothermal Energy

Pyrolysis

Phosphoric Acid

Hydrocarbon Recovery

Waste Disposal

Energy Recovery

Rubber Compounding

Nitrogen Removal

Gasification

Separation Techniques

Sustainable Solutions

Fluidized Bed Combustion

101 patents: Sort by Forward Citations

1. 6828383 - Phenolic modified resorcinolic resins for rubber compounding (2004-12-07),

2. 4646771 - One-step system for transforming a water-in-oil emulsion into an (1987-03-03),

3. 4627458 - One-step process for transforming a water-in-oil emulsion into an (1986-12-09),

4. 4592901 - Method of removing suspended solids from phosphoric acid (1986-06-03),

5. 4426280 - Process for removing nitrogen from shale oil (1984-01-17),

6. 4358344 - Process for the production and recovery of fuel values from coal (1982-11-09),

7. 4357802 - Geothermal energy production (1982-11-09),

8. 4341077 - Process and system for recovery of energy from geothermal brines and (1982-07-27),

9. 4334959 - Mixing method and apparatus (1982-06-15),

10. 4326505 - Surgical procedure for embryo transplants on animals (1982-04-27),

11. 4324102 - Process and system for recovery of energy from geothermal brines and (1982-04-13),

12. 4322222 - Process for the gasification of carbonaceous materials (1982-03-30),

13. 4284614 - Process for production of high purity phosphoric acid from high alumina (1981-08-18),

14. 4277448 - Phosphoric acid process with high circulation rates (1981-07-07),

15. 4276748 - Recovery of energy from geothermal brine and other hot water sources (1981-07-07),

Company Overview

Occidental Petroleum, headquartered in Los Angeles, CA, is a prominent player in the energy sector, focusing on geothermal energy production and innovative technologies. The company specializes in various core technology areas, including pyrolysis, phosphoric acid production, hydrocarbon recovery, and waste disposal. Occidental is committed to advancing energy recovery methods and enhancing processes such as rubber compounding and nitrogen removal, contributing to sustainable energy solutions and environmental stewardship.

Profile summary synthesized from public USPTO records and patent filings.

Company Badge

USPTO Data Jan 1 1976 - Oct 20 2026

101 Patents

#16 in Los Angeles, CA

#862 in California

#3,763 in US

#7,721 in the World

Los Angeles, CA, United States of America

Occidental Petroleum

Forward Citations = 2,557

68 inventors:

Charles K Choi (13 out of 14 patents)

Norman W Green (10 out of 12 patents)

Booker W Morey (8 out of 13 patents)

4. Fernando N Ore (7 out of 9 patents)

5. Richard D Ridley (6 out of 25 patents)

IDiyas Innovation Intelligence. (2026). Company Patent Portfolio: Occidental Petroleum. Retrieved from https://idiyas.com/company/occidental-petroleum

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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