For the Inventor, By the Inventor

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Troy, MI, United States of America

Dayco IP Holdings, LLC

USPTO Granted Patents = 152

% Expired Patents = 10.5

EPO Patents = 86

Forward Citations = 488

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65 inventors (with patents filed for the assignee):

Brian M Graichen (70 out of 73 patents)

David E Fletcher (69 out of 72 patents)

Keith Hampton (60 out of 103 patents)

4. James H Miller (55 out of 57 patents)

5. Matthew C Gilmer (41 out of 41 patents)

6. Andrew D Niedert (34 out of 71 patents)

7. Rex Bravo (25 out of 25 patents)

8. Suhale Manzoor (20 out of 29 patents)

9. Anthony Eugene Lannutti (19 out of 25 patents)

10. Matt Gilmer (14 out of 14 patents)

11. Kevin Gerard Dutil (10 out of 14 patents)

12. Nicole Bruder (9 out of 9 patents)

13. James Kevin Lindstrom (8 out of 8 patents)

14. Kevin W Lucka (7 out of 17 patents)

15. Donald P Tinsley, Iii (7 out of 8 patents)

Core Competencies:

Venturi Effect

Vacuum Systems

Torsional Vibration Dampers

Fuel Vapor Management

Check Valves

Aspirators

Magnetically Actuated Valves

Flow Control

Crankcase Ventilation

Quick Connectors

Noise Attenuation

Turbocharging Systems

152 patents: Sort by Forward Citations

1. 11835018 - Magnetically latching valve for fuel vapor management systems and systems incorporating same (2023-12-05),

2. 11714019 - Systems and methods for make-up air blocking valve with a restrictive poppet orifice (2023-08-01),

3. 11668423 - Quick connector with a replaceable restriction orifice (2023-06-06),

4. 11668268 - Magnetically latching valve for fuel vapor management systems and systems incorporating same (2023-06-06),

5. 11614098 - Devices for producing vacuum using the Venturi effect having a solid fletch (2023-03-28),

6. 11585299 - System and methods for a fuel tank pressure control pump (2023-02-21),

7. 11492936 - Crankcase ventilation system with constant restriction in the flow direction and free flow in an opposite direction (2022-11-08),

8. 11486504 - Check valve insert defining an open position and check valves having same (2022-11-01),

9. 11415086 - Three port, five-way magnetically latching valve for fuel vapor management systems and systems incorporating same (2022-08-16),

10. 11408380 - Devices for producing vacuum using the Venturi effect having a hollow fletch (2022-08-09),

11. 11408361 - Charge air cooler drain system (2022-08-09),

12. 11378211 - Quick connector with a replaceable restriction orifice (2022-07-05),

13. 11300080 - Fuel tank protector valve and engine systems having same (2022-04-12),

14. 11067177 - Sprung gate valves movable by an actuator (2021-07-20),

15. 11015498 - Crankcase ventilation system with a flow control device for on board diagnostics (2021-05-25),

Company Overview

Dayco IP Holdings, LLC, based in Troy, MI, specializes in advanced technologies related to Venturi devices and associated systems. The company focuses on the development and manufacturing of solutions that leverage the Venturi effect, including vacuum systems, torsional vibration dampers, and fuel vapor management systems. Their expertise extends to check valves, aspirators, magnetically actuated valves, and flow control mechanisms, positioning them as a key player in the automotive and industrial sectors.

Profile summary synthesized from public USPTO records and patent filings.

Company Badge

USPTO Data Jan 1 1976 - Oct 20 2026

152 Patents

#12 in Troy, MI

#112 in Michigan

#2,599 in US

#5,376 in the World

Troy, MI, United States of America

Dayco IP Holdings, LLC

Forward Citations = 488

65 inventors:

Brian M Graichen (70 out of 73 patents)

David E Fletcher (69 out of 72 patents)

Keith Hampton (60 out of 103 patents)

4. James H Miller (55 out of 57 patents)

5. Matthew C Gilmer (41 out of 41 patents)

IDiyas Innovation Intelligence. (2026). Company Patent Portfolio: Dayco IP Holdings, LLC. Retrieved from https://idiyas.com/company/dayco-ip-holdings

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]

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