DF

David E. Fletcher

DH Dayco Ip Holdings: 6 patents #1 of 8Top 15%
📍 Flint, MI: #1 of 13 inventorsTop 8%
🗺 Michigan: #381 of 10,373 inventorsTop 4%
Overall (2020): #27,019 of 565,922Top 5%
6
Patents 2020

Issued Patents 2020

Showing 1–6 of 6 patents

Patent #TitleCo-InventorsDate
10830197 Two-position gate and sprung gate valves having a full-flow open position and a restricted-flow open position Matthew C. Gilmer, James H. Miller 2020-11-10
10724550 Venturi devices with dual Venturi flow paths Brian M. Graichen, James H. Miller, Keith Hampton 2020-07-28
10677239 Solenoid activated vacuum pump for an engine system and system having same Keith Hampton, Brian M. Graichen, James H. Miller 2020-06-09
10626888 Dual Venturi device Brian M. Graichen, Keith Hampton 2020-04-21
10571030 Valve gate within a Venturi gap of a Venturi device for producing vacuum Keith Hampton, Brian M. Graichen, James H. Miller 2020-02-25
10525952 Aspirators for producing vacuum using the venturi effect Brian M. Graichen, Keith Hampton, Matthew C. Gilmer, Andrew Niedert 2020-01-07