For the Inventor, By the Inventor

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Akron, OH, United States of America

Bridgestone/firestone, Inc.

USPTO Granted Patents = 342

CIPO Patents = 3

Trademarks = 19

Forward Citations = 5,596

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278 inventors (with patents filed for the assignee):

James G Guspodin (47 out of 119 patents)

Timothy J Lassan (21 out of 51 patents)

James A Davis (20 out of 61 patents)

4. Bill J Wallet (18 out of 48 patents)

5. John J Regallis (17 out of 66 patents)

6. Leonard F Blankenship (16 out of 22 patents)

7. William L Hergenrother (15 out of 231 patents)

8. David F Lawson (13 out of 108 patents)

9. Russell W Koch (13 out of 69 patents)

10. Thomas A Antkowiak (12 out of 51 patents)

11. Karl J Siegenthaler (12 out of 37 patents)

12. Brian S Alexander (11 out of 19 patents)

13. William C Hanlon (10 out of 11 patents)

14. Joseph F Molnar (8 out of 11 patents)

15. Silvana Hinrichsen (8 out of 13 patents)

Core Competencies:

Tire Tread

Vibration Damping

Air Spring

Elastomer

Adhesives

Thermoplastic Elastomers

Roofing Membranes

Hydraulic Dampers

Tire Performance

Silica Compositions

Pneumatic Tires

Friction Testing

342 patents: Sort by Forward Citations

1. 6361028 - Solid girdle hoop for an air spring and method of assembly (2002-03-26),

2. 6359075 - Means of producing high diblock content thermoplastic elastomers via chain transfer (2002-03-19),

3. 6352143 - Vibration damping system using a hydraulic damper with a field responsive fluid control (2002-03-05),

4. 6328168 - Supportive pin rack for green tire storage (2001-12-11),

5. 6318521 - Externally guided ER damper (2001-11-20),

6. 6298998 - Supportive pin rack for green tire storage (2001-10-09),

7. 6274666 - Adhesive and polymer for adhesives (2001-08-14),

8. 6250613 - Non-metallic spacer for air spring assembly (2001-06-26),

9. 6216833 - Vibration damper and method of making same (2001-04-17),

10. 6199837 - Thermoplastic elastomer air spring (2001-03-13),

11. 6199424 - Portable universal friction testing machine and method (2001-03-13),

12. 6191206 - Silica containing tire compositions for suppression of static charge accumulation (2001-02-20),

13. RE37015 - Vibration damping device using ER fluids having multiple electrodes (2001-01-16),

14. 6162874 - Block copolymers interpolymerized with in situ polystyrene and process (2000-12-19),

15. 6155110 - Method for predicting tire performance on rain groove roadways (2000-12-05),

Company Overview

Bridgestone/Firestone, Inc., headquartered in Akron, Ohio, is a leading manufacturer specializing in tire technology and related products. The company focuses on developing advanced tire tread designs, vibration damping solutions, and air spring systems, enhancing vehicle performance and safety. Bridgestone also innovates in elastomers, adhesives, thermoplastic elastomers, and roofing membranes, contributing to various industries beyond automotive. Their commitment to research and development positions them at the forefront of tire and material technology.

Profile summary synthesized from public USPTO records and patent filings.

Company Badge

USPTO Data Jan 1 1976 - Oct 13 2026

342 Patents

#5 in Akron, OH

#60 in Ohio

#1,314 in US

#2,655 in the World

Akron, OH, United States of America

Bridgestone/firestone, Inc.

Forward Citations = 5,596

278 inventors:

James G Guspodin (47 out of 119 patents)

Timothy J Lassan (21 out of 51 patents)

James A Davis (20 out of 61 patents)

4. Bill J Wallet (18 out of 48 patents)

5. John J Regallis (17 out of 66 patents)

IDiyas Innovation Intelligence. (2026). Company Patent Portfolio: Bridgestone/firestone, Inc.. Retrieved from https://idiyas.com/company/bridgestone-firestone

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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