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For the Inventor, By the Inventor

Miamisburg, OH, United States of America

Dayco Products, Inc.


USPTO Granted Patents = 357

% Expired Patents = 12.6



Trademarks = 24

Forward Citations = 4,676

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204 inventors (with patents filed for the assignee):

goldMedal Homer N Holden (30 out of 44 patents)

silverMedal Randy C Foster (24 out of 45 patents)

bronzeMedal James L Lawrence (20 out of 22 patents)

4.  Dewey D Henderson (19 out of 29 patents)

5.  John D Sanders (16 out of 17 patents)

6.  Jeffrey J Winter (15 out of 15 patents)

7.  Yungrwei Chen (13 out of 17 patents)

8.  James Gerard Quintus (12 out of 23 patents)

9.  Rodger P Grantham (12 out of 36 patents)

10.  Jack R Cooper (12 out of 12 patents)

11.  Jack D White, Jr (12 out of 21 patents)

12.  David E Gardner (12 out of 12 patents)

13.  Richard L Marsh (11 out of 23 patents)

14.  David B Novak (11 out of 11 patents)

15.  Jerry Shifman (10 out of 10 patents)


Core Competencies:
Belt Tensioner
Clutched Damper
Power Transmission Belt
V-Ribbed Belt
Active Vibrational Damper
Automotive Applications
Torque-Sensitive Clutch
Energy Attenuation Device
Flexible Hose
Extruded Seal
Hydraulic Tensioner
Thermoplastic Vulcanizate

357 patents:

1. 8277348 - Clutched damper for a belt tensioner (2012-10-02),
2. 8250770 - Pulley alignment system (2012-08-28),
3. 8192315 - V-ribbed belt having an outer surface with improved coefficient of friction (2012-06-05),
4. 8162787 - One-way clutched damper for automatic belt tensioner (2012-04-24),
5. 8123640 - Belt tensioner with damping member (2012-02-28),
6. 8075434 - Profiled tip power transmission belt (2011-12-13),
7. 8075433 - Belt tensioner with damping member (2011-12-13),
8. 8038555 - One-way clutched damper for automatic belt tensioner (2011-10-18),
9. 8028602 - Active vibrational damper (2011-10-04),
10. 8012053 - Combination dust cover and bearing retention member (2011-09-06),
11. 7931552 - Pulley with torque-sensitive clutching (2011-04-26),
12. 7887445 - Belt tensioner (2011-02-15),
13. D629313 - Gage (2010-12-21),
14. 7771302 - Apparatus for indicating power transmission belt dynamics (2010-08-10),
15. 7749120 - Power transmission belt (2010-07-06),
Dayco Products, Inc., headquartered in Miamisburg, Ohio, specializes in the development and manufacturing of advanced belt tensioners and related power transmission components. The company focuses on automotive applications, providing innovative solutions such as clutched dampers, V-ribbed belts, and torque-sensitive clutches. With a commitment to enhancing energy efficiency and performance, Dayco integrates cutting-edge technology into its products, addressing the evolving needs of the automotive industry and contributing to improved vehicle dynamics.
Profile summary based on public USPTO records.

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USPTO Data Jan 1 1976 - Sep 29 2026

Dayco Products, Inc.
357 Patents

#1 in Miamisburg, OH

#56 in Ohio

#1,275 in US

#2,567 in the World

Miamisburg, OH (US)
Miamisburg, OH, United States of America

Dayco Products, Inc.

Forward Citations = 4,676

204 inventors:

goldMedal Homer N Holden (30 out of 44 patents)

silverMedal Randy C Foster (24 out of 45 patents)

bronzeMedal James L Lawrence (20 out of 22 patents)

4.  Dewey D Henderson (19 out of 29 patents)

5.  John D Sanders (16 out of 17 patents)

Please report any incorrect information to [email protected]
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