DF

David E. Fletcher

DH Dayco Ip Holdings: 69 patents #2 of 65Top 4%
DP Dayco Products: 3 patents #62 of 203Top 35%
📍 Flint, MI: #1 of 357 inventorsTop 1%
🗺 Michigan: #453 of 86,293 inventorsTop 1%
Overall (All Time): #27,853 of 4,157,543Top 1%
72
Patents All Time

Issued Patents All Time

Showing 51–72 of 72 patents

Patent #TitleCo-InventorsDate
D796006 Actuated valve Brian M. Graichen, James H. Miller, Rex Bravo, Keith Hampton, Matthew C. Gilmer +2 more 2017-08-29
D796005 Actuated valve Brian M. Graichen, James H. Miller, Rex Bravo, Keith Hampton, Matthew C. Gilmer +2 more 2017-08-29
D795392 Actuated valve Brian M. Graichen, James H. Miller, Rex Bravo, Keith Hampton, Matthew C. Gilmer +2 more 2017-08-22
9732871 Aspirated relief valve for a turbocharging system Brian M. Graichen, James H. Miller, Keith Hampton, Matthew C. Gilmer 2017-08-15
9669815 Dual aspirator system with aspirator shut-off valve James H. Miller, Keith Hampton 2017-06-06
9657748 Pneumatically actuated vacuum pump having multiple venturi gaps and check valves Brian M. Graichen, Keith Hampton 2017-05-23
9617958 Noise attenuation unit for engine systems Keith Hampton, Brian M. Graichen, Rex Bravo 2017-04-11
9599246 Magnetically actuated shut-off valve Brian M. Graichen, James H. Miller, Keith Hampton 2017-03-21
9599234 Sprung gate valve Brian M. Graichen, Matthew C. Gilmer, Keith Hampton 2017-03-21
9581060 Evacuator system for supplying high suction vacuum or high suction flow rate James H. Miller, Keith Hampton 2017-02-28
D780296 Actuated valve Brian M. Graichen, James H. Miller, Rex Bravo, Keith Hampton, Matthew C. Gilmer +2 more 2017-02-28
9581258 Check valve with improved sealing member James H. Miller, Rex Bravo, Andrew Niedert, Matt Gilmer 2017-02-28
9574677 Solenoid-powered gate valve Brian M. Graichen, Matthew C. Gilmer, James H. Miller 2017-02-21
9534704 Noise attenuation in a check valve unit or apparatus for producing vacuum Keith Hampton, Brian M. Graichen, Rex Bravo, Matt Gilmer, Andrew Niedert 2017-01-03
9447697 Wastegate valve and turbocharger having same Craig Markyvech, James H. Miller, Brian M. Graichen 2016-09-20
9441647 Pressure piston actuator with non-rigid shaft Brian M. Graichen, Stuart J. Kirby 2016-09-13
9382826 Noise attenuating member for noise attenuating units in engines Brian M. Graichen, Denis Vashuk, Rex Bravo 2016-07-05
9291094 Variable flow valve having metered flow orifice Brian M. Graichen 2016-03-22
9238388 Tire pressure maintenance apparatus and system James H. Miller, Craig Markyvech, Brian M. Graichen 2016-01-19
5571061 Belt tensioner, actuator and method of making M. Michael Tsai, Joseph W. Zamm 1996-11-05
5499950 Belt tensioner, actuator therefor and methods of making the same M. Michael Tsai, Joseph W. Zamm 1996-03-19
5391118 Belt tensioner, actuator therefor and methods of making the same M. Michael Tsai, Joseph W. Zamm 1995-02-21