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Pittsburgh, PA, United States of America

Gulf Oil Corporation

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USPTO Granted Patents = 232

Trademarks = 3

Forward Citations = 3,436

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145 inventors (with patents filed for the assignee):

Pallavoor R Lakshmanan (24 out of 39 patents)

Joel L Kirkpatrick (21 out of 23 patents)

William J Heilman (16 out of 43 patents)

4. Natu R Patel (14 out of 15 patents)

5. Jerry L Rutter (13 out of 17 patents)

6. Bruce K Schmid (12 out of 14 patents)

7. Thomas J Lynch (11 out of 20 patents)

8. James H Rea (11 out of 11 patents)

9. Khalid A Karim (10 out of 10 patents)

10. Loren W Hedrich (9 out of 11 patents)

11. Clarence R Murphy (9 out of 9 patents)

12. Vikramkumar Acharya (8 out of 8 patents)

13. Roger P Cahoy (7 out of 12 patents)

14. Charles W Matthews (7 out of 11 patents)

15. Robert J Rowatt (7 out of 9 patents)

Core Competencies:

Oil Shale Retorting

Cement Compositions

Hydraulic Packer Assembly

Polymer Blends

Plant Growth Regulators

Hot Melt Adhesives

Explosives Production

Thermoplastic Compositions

Aromatic Polyimides

N-Carbamylindolines

Photopolymerizable Compositions

Spent Oil Shale

232 patents: Sort by Forward Citations

1. 4573534 - Cement compositions and method of cementing casing in a well (1986-03-04),

2. 4552214 - Pulsed in situ retorting in an array of oil shale retorts (1985-11-12),

3. 4548702 - Shale oil stabilization with a hydroprocessor (1985-10-22),

4. 4544477 - Polar solvent extraction and dedusting process (1985-10-01),

5. 4535115 - Method of preparation of polyimide acids (1985-08-13),

6. 4529497 - Disposal of spent oil shale and other materials (1985-07-16),

7. 4526229 - Hydraulic packer assembly (1985-07-02),

8. 4525557 - Catalyst and process for the polymerization of ethylene (1985-06-25),

9. 4524171 - Preparation of an aromatic polyimide acid by solution polymerization (1985-06-18),

10. 4507055 - System for automatically controlling intermittent pumping of a well (1985-03-26),

11. 4500661 - Adhesive composition (1985-02-19),

12. 4495056 - Oil shale retorting and retort water purification process (1985-01-22),

13. 4475965 - Shale oil explosives (1984-10-09),

14. 4474629 - Oil shale retorting process for producing explosives (1984-10-02),

15. 4464994 - Apparatus for plugging a blast hole in an in situ oil shale retort or (1984-08-14),

Company Overview

Gulf Oil Corporation, headquartered in Pittsburgh, PA, specializes in the development and application of innovative technologies in the oil shale sector. The company focuses on advanced oil shale retorting techniques and has expertise in various core technology areas, including cement compositions, hydraulic packer assemblies, and polymer blends. Additionally, Gulf Oil is involved in producing plant growth regulators, hot melt adhesives, and explosives, showcasing a diverse portfolio that supports multiple industrial applications.

Profile summary synthesized from public USPTO records and patent filings.

Company Badge

USPTO Data Jan 1 1976 - Nov 3 2026

232 Patents

#18 in Pittsburgh, PA

#78 in Pennsylvania

#1,818 in US

#3,703 in the World

Pittsburgh, PA, United States of America

Gulf Oil Corporation

Forward Citations = 3,436

145 inventors:

Pallavoor R Lakshmanan (24 out of 39 patents)

Joel L Kirkpatrick (21 out of 23 patents)

William J Heilman (16 out of 43 patents)

4. Natu R Patel (14 out of 15 patents)

5. Jerry L Rutter (13 out of 17 patents)

IDiyas Innovation Intelligence. (2026). Company Patent Portfolio: Gulf Oil Corporation. Retrieved from https://idiyas.com/company/gulf-oil

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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