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Lisle, IL, United States of America

Atlantic Richfield Company

USPTO Granted Patents = 1,851

CIPO Patents = 65

Trademarks = 59

Forward Citations = 36,904

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1,175 inventors (with patents filed for the assignee):

Jin S Yoo (50 out of 69 patents)

John A Sofranko (45 out of 78 patents)

Lloyd A Baillie (40 out of 43 patents)

4. John J Leonard (33 out of 34 patents)

5. Thomas K Perkins (32 out of 34 patents)

6. Richard F Miller (30 out of 40 patents)

7. C Andrew Jones (30 out of 49 patents)

8. Emmett H Burk, Jr (30 out of 33 patents)

9. Tom P Airhart (29 out of 35 patents)

10. Barry D Dean (28 out of 38 patents)

11. Adolph V DiGiulio (23 out of 35 patents)

12. Haven S Kesling, Jr (22 out of 54 patents)

13. Miroslav M Kolpak (21 out of 21 patents)

14. Lee R Zehner (21 out of 22 patents)

15. Frank E Lowther (21 out of 54 patents)

Core Competencies:

Cement Slurry

NOx Conversion Catalyst

Reduced Pollution Diesel Fuel

Downhole Separation

Subterranean Formation

Fracture Discrimination

Hydrocarbon Gas Conversion

Petroleum By-Product Recycling

Wellbore Cleaning

Seismic Analysis

Fracturing Method

Oil-Based Gel-Breaker

1,851 patents: Sort by Forward Citations

1. 6566310 - Tandem spacer fluid system and method for positioning a cement slurry in a wellbore annulus (2003-05-20),

2. 6482762 - NOx conversion catalyst rejuvenation process (2002-11-19),

3. 6461497 - Reformulated reduced pollution diesel fuel (2002-10-08),

4. 6353988 - Method of installing a highly tensioned suspended pipeline (2002-03-12),

5. 6318480 - Drilling of laterals from a wellbore (2001-11-20),

6. 6283213 - Tandem spacer fluid system and method for positioning a cement slurry in a wellbore annulus (2001-09-04),

7. 6283204 - Oil and gas production with downhole separation and reinjection of gas (2001-09-04),

8. 6273192 - Method for strengthening a subterranean formation (2001-08-14),

9. 6273144 - Method for inhibiting external corrosion on an insulated pipeline (2001-08-14),

10. 6265355 - Gel-breaker composition and a method for breaking a gel (2001-07-24),

11. 6260619 - Oil and gas production with downhole separation and compression of gas (2001-07-17),

12. 6258332 - Apparatus and method for collecting and recycling a petroleum by-product (2001-07-10),

13. 6257331 - Downhole setting tool (2001-07-10),

14. 6250689 - Reinforced tube joint (2001-06-26),

15. 6248794 - Integrated process for converting hydrocarbon gas to liquids (2001-06-19),

Atlantic Richfield Company (ARCO) is an American oil company with operations in the exploration, production, refining, and marketing of petroleum products. ARCO was founded in 1966 and has become one of the largest oil companies in the United States. With a focus on innovation, sustainability, and community engagement, ARCO continuously strives to deliver energy solutions to meet the world's growing demand.

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

Company Badge

USPTO Data Jan 1 1976 - Dec 30 2025

1,851 Patents

#2 in Lisle, IL

#18 in Illinois

#271 in US

#533 in the World

Lisle, IL, United States of America

Atlantic Richfield Company

Forward Citations = 36,904

1,175 inventors:

Jin S Yoo (50 out of 69 patents)

John A Sofranko (45 out of 78 patents)

Lloyd A Baillie (40 out of 43 patents)

4. John J Leonard (33 out of 34 patents)

5. Thomas K Perkins (32 out of 34 patents)

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