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 = 4

Trademarks = 27

Forward Citations = 5,537

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280 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:

Air Spring Assembly

Thermoplastic Elastomers

Vibration Damping System

Tire Performance Prediction

Silica Tire Compositions

EPDM Roofing Shingles

Portable Tire Measurement

Non-Metallic Spacer

Elastomeric Members

Composite Roofing Members

Hydraulic Dampers

Tire Tread Noise Treatment

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),

Bridgestone/Firestone, Inc. is a leading global manufacturer of tires and rubber products. With a rich history spanning over a century, the company provides innovative solutions for various industries including automotive, agricultural, construction, and more. Bridgestone/Firestone's commitment to quality, performance, and sustainability has earned them a reputation as a trusted brand worldwide. Through their website, customers can explore their wide range of products, learn about their technological advancements, and access valuable resources and services.

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

Company Badge

USPTO Data Jan 1 1976 - Dec 9 2025

342 Patents

#6 in Akron, OH

#55 in Ohio

#1,266 in US

#2,570 in the World

Akron, OH, United States of America

Bridgestone/firestone, Inc.

Forward Citations = 5,537

280 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)

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