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Elmira, NY, United States of America

The Hilliard Corporation

USPTO Granted Patents = 38

CIPO Patents = 37

EPO Patents = 12

Trademarks = 3

Forward Citations = 598

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37 inventors (with patents filed for the assignee):

David C Ochab (15 out of 16 patents)

James E Palmer (10 out of 10 patents)

Kelly P Heath (10 out of 10 patents)

4. Howard J Knickerbocker (6 out of 6 patents)

5. John R Updyke (5 out of 7 patents)

6. Brenton H Barron (4 out of 4 patents)

7. Matthew J Cowen (4 out of 4 patents)

8. Steven M Averill (4 out of 4 patents)

9. William J Coon (3 out of 3 patents)

10. John Michael Hasson, Jr (3 out of 3 patents)

11. J Brendan Brewer (2 out of 2 patents)

12. Scott C Schneider (2 out of 2 patents)

13. Leslie R White (2 out of 2 patents)

14. Michael E Kimble (2 out of 2 patents)

15. Ernest H Pauli (2 out of 2 patents)

38 patents: Sort by Forward Citations

1. 12331798 - Spring and damper assembly for a centrifugal clutch in a continuously variable transmission (2025-06-17),

2. 12146568 - Driven clutch with dual helix assembly for continuously variable transmission (2024-11-19),

3. 12104659 - Flexible armature plate for an electro-magnetic overrunning clutch (2024-10-01),

4. 11421769 - Bi-directional overrunning clutch differential with output hub supports (2022-08-23),

5. 11236811 - Center differential and drive system for four wheel drive (2022-02-01),

6. 11131350 - Power transmitting clutch and disconnect (2021-09-28),

7. 10989258 - Flexible armature plate for an electro-magnetic overrunning clutch (2021-04-27),

8. 9856930 - Bi-directional overrunning clutch with outer spring for a drive axle (2018-01-02),

9. 9360059 - Twin ratio differential with bi-directional overrunning clutch (2016-06-07),

10. 9278422 - System for dressing a centrifugal clutch (2016-03-08),

11. 9272620 - True four wheel drive system for vehicle (2016-03-01),

12. 9022195 - Bi-directional overrunning clutch having split roll cage and drag mechanism (2015-05-05),

13. 8919513 - Bi-directional overrunning clutch having split roll cage (2014-12-30),

14. 8857594 - Friction drive clutch having ramped members (2014-10-14),

15. 8857589 - Friction disk mechanism for bi-directional overrunning clutch (2014-10-14),

The Hilliard Corporation is a leading manufacturer of motion control products, industrial brakes, and filtration systems. With over 100 years of experience, Hilliard provides innovative solutions to various industries including agriculture, construction, mining, and marine. Their products are known for their high quality, durability, and efficiency. Visit their website to explore their wide range of products and solutions.

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

Company Badge

USPTO Data Jan 1 1976 - Dec 2 2025

38 Patents

#4 in Elmira, NY

#500 in New York

#8,716 in US

#17,275 in the World

Elmira, NY, United States of America

The Hilliard Corporation

Forward Citations = 598

37 inventors:

David C Ochab (15 out of 16 patents)

James E Palmer (10 out of 10 patents)

Kelly P Heath (10 out of 10 patents)

4. Howard J Knickerbocker (6 out of 6 patents)

5. John R Updyke (5 out of 7 patents)

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