For the Inventor, By the Inventor

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Los Angeles, CA, United States of America

Tosco Corporation

USPTO Granted Patents = 25

Trademarks = 15

Forward Citations = 318

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22 inventors (with patents filed for the assignee):

John F Nutter (3 out of 3 patents)

Robert N Hall (3 out of 5 patents)

Frank C Haas (3 out of 3 patents)

4. Manuel M Gutierrez (2 out of 2 patents)

5. Bernard L Schulman (2 out of 2 patents)

6. Donald Firth (2 out of 3 patents)

7. Gerald B Faudel (2 out of 2 patents)

8. Franklin B Carlson (2 out of 4 patents)

9. John H Barney (2 out of 2 patents)

10. Robert L Russell (1 out of 17 patents)

11. Marlea Harmon (1 out of 1 patent)

12. Ronald C Brinkman (1 out of 1 patent)

13. Darrell L Gallup (1 out of 48 patents)

14. Russell E Koons (1 out of 5 patents)

15. F Roland Leon (1 out of 1 patent)

Core Competencies:

Stretford Solution

Selenocyanate Removal

Diesel Fuel

Heat Exchanger

Asphalt Composition

Entrained Flow Drying

Carbonaceous Liquids

Hydrogen Sulfide Emissions

Oil Yield Maximization

Zinc Removal

Retorting Techniques

Heat Conservation

25 patents: Sort by Forward Citations

1. 6558646 - Method for increasing the lifetime of stretford solution (2003-05-06),

2. 6214238 - Method for removing selenocyanate ions from waste water (2001-04-10),

3. 5792339 - Diesel fuel (1998-08-11),

4. 4509589 - Circulating bed heat exchanger for cooling shale ash (1985-04-09),

5. 4459157 - Asphalt composition (1984-07-10),

6. 4445976 - Method of entrained flow drying (1984-05-01),

7. 4427493 - Apparatus for practicing heat flux control technique (1984-01-24),

8. 4421603 - Process for recovering carbonaceous liquids from solid carbonaceous (1983-12-20),

9. 4413573 - Process for combusting carbonaceous solids containing nitrogen (1983-11-08),

10. 4407653 - Apparatus for heating solid heat-carrying bodies (1983-10-04),

11. 4401553 - System and method for lowered hydrogen sulfide emissions from oil shale (1983-08-30),

12. 4384947 - Preheating of oil shale prior to pyrolysis (1983-05-24),

13. 4374017 - Heat flux control technique (1983-02-15),

14. 4361333 - Retort seal mechanism with integral bearings (1982-11-30),

15. 4353558 - Hydrostatic retort seal (1982-10-12),

Company Overview

Tosco Corporation, headquartered in Los Angeles, CA, is a prominent player in the energy sector, specializing in the development and production of refined petroleum products. The company focuses on enhancing energy efficiency and sustainability through innovative refining processes and technologies. Tosco is committed to advancing its research in alternative energy solutions, contributing to the evolving landscape of energy production and consumption. Its strategic initiatives aim to address both current market demands and future energy challenges.

Profile summary synthesized from public USPTO records and patent filings.

Company Badge

USPTO Data Jan 1 1976 - Oct 6 2026

25 Patents

#75 in Los Angeles, CA

#3,154 in California

#13,350 in US

#25,681 in the World

Los Angeles, CA, United States of America

Tosco Corporation

Forward Citations = 318

22 inventors:

John F Nutter (3 out of 3 patents)

Robert N Hall (3 out of 5 patents)

Frank C Haas (3 out of 3 patents)

4. Manuel M Gutierrez (2 out of 2 patents)

5. Bernard L Schulman (2 out of 2 patents)

IDiyas Innovation Intelligence. (2026). Company Patent Portfolio: Tosco Corporation. Retrieved from https://idiyas.com/company/tosco

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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