For the Inventor, By the Inventor

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Morristown, TN, United States of America

Tuff Torq Corporation

USPTO Granted Patents = 17

% Expired Patents = 35.3

Forward Citations = 269

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16 inventors (with patents filed for the assignee):

Robert Abend (13 out of 64 patents)

Travis S McCloud (5 out of 8 patents)

Kerwyn Stoll (5 out of 6 patents)

4. Keith Johnson Andrews (4 out of 12 patents)

5. Norihiro Ishii (3 out of 115 patents)

6. Ryota Ohashi (3 out of 135 patents)

7. Toshiyuki Hasegawa (3 out of 47 patents)

8. Koji Irikura (2 out of 60 patents)

9. Hiroaki Shimizu (2 out of 53 patents)

10. Masaru Iida (1 out of 42 patents)

11. Hirohiko Kawada (1 out of 22 patents)

12. Katsumoto Mizukawa (1 out of 15 patents)

13. Donald Wieber (1 out of 8 patents)

14. Hideaki Okada (1 out of 79 patents)

15. Koji Irikura (1 out of 1 patent)

17 patents: Sort by Forward Citations

1. 7360613 - Transmission for speed changing and steering of a vehicle (2008-04-22),

2. 7340891 - Axle driving system (2008-03-11),

3. 7331176 - Transaxle (2008-02-19),

4. 6874593 - Driving apparatus for speed changing and steering of a vehicle (2005-04-05),

5. 6755264 - Riding lawn mower (2004-06-29),

6. 6651770 - Driving apparatus for speed changing and steering of a vehicle (2003-11-25),

7. 6648094 - Driving apparatus for speed changing and steering of a vehicle (2003-11-18),

8. 6629577 - Driving apparatus for speed changing and steering of a vehicle (2003-10-07),

9. 6591936 - Driving apparatus for speed changing and steering of a vehicle (2003-07-15),

10. 6540633 - Transmission for speed changing and steering of a vehicle (2003-04-01),

11. 6536212 - Operation mechanism of a variable displacement hydraulic pump (2003-03-25),

12. 6125630 - Axle driving apparatus (2000-10-03),

13. 6098740 - Axle driving unit for a lawn tractor (2000-08-08),

14. 6044941 - Clutch-brake interlocking mechanism for starting and stopping vehicle (2000-04-04),

15. 5850758 - Transmission for self-propelled walking lawn mowers (1998-12-22),

Tuff Torq Corporation is a leading manufacturer of precision engineering components and systems for the automotive and industrial sectors. With a strong focus on innovation and quality, Tuff Torq has established itself as a trusted partner for customers worldwide. Their products are known for their durability, performance, and reliability, making them a preferred choice for many leading companies in the industry.

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

Company Badge

USPTO Data Jan 1 1976 - Sep 15 2026

17 Patents

#4 in Morristown, TN

#190 in Tennessee

#18,849 in US

#35,819 in the World

Morristown, TN, United States of America

Tuff Torq Corporation

Forward Citations = 269

16 inventors:

Robert Abend (13 out of 64 patents)

Travis S McCloud (5 out of 8 patents)

Kerwyn Stoll (5 out of 6 patents)

4. Keith Johnson Andrews (4 out of 12 patents)

5. Norihiro Ishii (3 out of 115 patents)

Please report any incorrect information to [email protected]

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