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Grand Junction, CO, United States of America

Occidental Oil Shale, Inc.

USPTO Granted Patents = 157

Forward Citations = 2,776

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49 inventors (with patents filed for the assignee):

Thomas E Ricketts (41 out of 41 patents)

Chang Y Cha (31 out of 43 patents)

Robert S Burton, Iii (19 out of 24 patents)

4. Richard D Ridley (19 out of 25 patents)

5. Gordon B French (18 out of 22 patents)

6. Ned M Hutchins (12 out of 12 patents)

7. Irving G Studebaker (7 out of 7 patents)

8. William J Bartel (5 out of 7 patents)

9. Leslie E Compton (4 out of 13 patents)

10. Harry E McCarthy (3 out of 5 patents)

11. Carlon C Chambers (3 out of 4 patents)

12. Robert J Fernandes (3 out of 3 patents)

13. Donald E Garrett (2 out of 8 patents)

14. James S Kilburn (2 out of 3 patents)

15. Randall T Chew, Iii (2 out of 2 patents)

Core Competencies:

In Situ Recovery

Retort Formation

Explosive Expansion

Gas Management

Void Fraction Control

Blasting Techniques

Combustion Uniformity

Mining Systems

Thermal Insulation

Permeability Control

Horizontal Free Face

Oil Shale Processing

157 patents: Sort by Forward Citations

1. 4623444 - Upgrading shale oil by a combination process (1986-11-18),

2. 4611856 - Two-level, horizontal free face mining system for in situ oil shale (1986-09-16),

3. 4605489 - Upgrading shale oil by a combination process (1986-08-12),

4. 4595056 - Method for fully retorting an in situ oil shale retort (1986-06-17),

5. 4560206 - Method for explosively expanding a pillar (1985-12-24),

6. 4560205 - Method for control of geometry of fragmented mass in an situ oil shale (1985-12-24),

7. 4552409 - In situ oil shale retort with controlled permeability for uniform flow (1985-11-12),

8. 4533181 - Method for forming uniform flow rubble bed (1985-08-06),

9. 4531783 - Stability control in underground workings adjacent an in situ oil shale (1985-07-30),

10. 4513665 - Method for loading explosive charges into blastholes formed in a (1985-04-30),

11. 4489983 - Blasthole spacing for control of particle size (1984-12-25),

12. 4466668 - Method of forming an in situ oil shale retort in formation with joints (1984-08-21),

13. 4458948 - Horizontal free face blasting for minimizing channeling and mounding in (1984-07-10),

14. 4458944 - Formation of in situ oil shale retort in plural steps (1984-07-10),

15. 4453769 - In situ oil shale retort having horizontal voids with side pillars (1984-06-12),

Company Overview

Occidental Oil Shale, Inc., based in Grand Junction, Colorado, specializes in innovative in situ oil shale technologies. The company focuses on advanced methods for in situ recovery, retort formation, and gas management, employing techniques such as explosive expansion and blasting to enhance extraction efficiency. Its expertise extends to void fraction control and combustion uniformity, contributing to the development of sustainable mining systems. Occidental Oil Shale is dedicated to optimizing oil shale resources while addressing environmental considerations.

Profile summary synthesized from public USPTO records and patent filings.

Company Badge

USPTO Data Jan 1 1976 - Oct 20 2026

157 Patents

#1 in Grand Junction, CO

#49 in Colorado

#2,526 in US

#5,234 in the World

Grand Junction, CO, United States of America

Occidental Oil Shale, Inc.

Forward Citations = 2,776

49 inventors:

Thomas E Ricketts (41 out of 41 patents)

Chang Y Cha (31 out of 43 patents)

Robert S Burton, Iii (19 out of 24 patents)

4. Richard D Ridley (19 out of 25 patents)

5. Gordon B French (18 out of 22 patents)

IDiyas Innovation Intelligence. (2026). Company Patent Portfolio: Occidental Oil Shale, Inc.. Retrieved from https://idiyas.com/company/occidental-oil-shale

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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