logo

For the Inventor, By the Inventor

Warren, MI, United States of America

Tractech Inc.


USPTO Granted Patents = 20


Trademarks = 5

Forward Citations = 323

Loading Chart...
Loading Chart...

12 inventors (with patents filed for the assignee):

goldMedal Walter L Dissett (10 out of 17 patents)

silverMedal Paul Joseph Valente (5 out of 93 patents)

bronzeMedal James R Bawks (3 out of 5 patents)

4.  Jeffrey P Lane (1 out of 1 patent)

5.  Robert A Kress (1 out of 1 patent)

6.  Wendel W Tittjung (1 out of 1 patent)

7.  Rodger L Marx (1 out of 2 patents)

8.  Jason L Wogaman (1 out of 1 patent)

9.  Alvin A Choma (1 out of 2 patents)

10.  Timothy R Edwards (1 out of 3 patents)

11.  Eddie A Daniels (1 out of 1 patent)

12.  Lawrence T Neumann (1 out of 1 patent)


20 patents:

1. 7311632 - Gearless locking differential (2007-12-25),
2. 6826981 - Differential for racing cars (2004-12-07),
3. 6688194 - Locking differential including improved clutch member and adapter sleeve (2004-02-10),
4. 6374701 - Gearless differential (2002-04-23),
5. 6309321 - Fully-locking torque-proportioning differential (2001-10-30),
6. 6209700 - Electric clutch including resilient disk biasing means (2001-04-03),
7. 6076429 - Clutch for a differential (2000-06-20),
8. 5924763 - Wing assembly for drag racers (1999-07-20),
9. 5885181 - Helical gear differential including lubrication passage means (1999-03-23),
10. 5836220 - Locking differential with pin access window (1998-11-17),
11. 5715733 - Locking differential including a spring cap biasing assembly (1998-02-10),
12. 5671640 - Locking differential with pre-load means and C-clip retainers (1997-09-30),
13. 4751853 - Differential with equal depth pinion cavities (1988-06-21),
14. 4677876 - Torque-proportioning differential with cylindrical spacer (1987-07-07),
15. 4644818 - Differential apparatus with side-gear-centered center cam (1987-02-24),
Company Overview
Tractech Inc., based in Warren, Michigan, specializes in advanced automotive technologies, focusing on the development and manufacturing of innovative drivetrain solutions. The company is recognized for its expertise in engineering and design, particularly in the areas of traction control systems and performance enhancements for vehicles. With a commitment to quality and innovation, Tractech serves a diverse clientele in the automotive sector, contributing to advancements in vehicle performance and safety.
Profile summary synthesized from public USPTO records and patent filings.

logo

Company Badge

USPTO Data Jan 1 1976 - Oct 20 2026

20 Patents

#15 in Warren, MI

#589 in Michigan

#16,409 in US

#31,295 in the World

Warren, MI (US)
Warren, MI, United States of America

Tractech Inc.

Forward Citations = 323

12 inventors:

goldMedal Walter L Dissett (10 out of 17 patents)

silverMedal Paul Joseph Valente (5 out of 93 patents)

bronzeMedal James R Bawks (3 out of 5 patents)

4.  Jeffrey P Lane (1 out of 1 patent)

5.  Robert A Kress (1 out of 1 patent)

IDiyas Innovation Intelligence. (2026). Company Patent Portfolio: Tractech Inc.. Retrieved from https://idiyas.com/company/tractech

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]
Loading…