WD

William Dirkin

PA Pneumo Abex: 7 patents #1 of 38Top 3%
PN Pneumo: 2 patents #7 of 31Top 25%
PA Parker-Hannifin: 1 patents #643 of 1,656Top 40%
📍 Portage, MI: #93 of 619 inventorsTop 20%
🗺 Michigan: #9,426 of 86,293 inventorsTop 15%
Overall (All Time): #516,987 of 4,157,543Top 15%
10
Patents All Time

Issued Patents All Time

Showing 1–10 of 10 patents

Patent #TitleCo-InventorsDate
8439065 Automotive air bleed valve for a closed hydraulic system Franklin Lee, William Lui 2013-05-14
4802404 Composite cylinder assembly with removable liner assembly Fred H. Peters, Terry Benton 1989-02-07
4777869 Fluid actuator including a composite piston rod James N. Tootle, Duane Douglass, Terry Benton 1988-10-18
4773306 Dual tandem composite cylinder assembly including separately formed cylinder barrels 1988-09-27
4773282 Piston rod assembly including an injection bonded piston head and fabrication method Terry Benton, Charles E. Lund 1988-09-27
4717035 End closure for composite pressure vessels Charles E. Lund 1988-01-05
4700868 Composite pressure vessel including fluid port with replaceable seal in composite sidewall structure and method of constructing such fluid port 1987-10-20
4697499 Dual tandem composite cylinder assembly Duane Douglass, James N. Tootle, Terry Benton 1987-10-06
4685384 Fluid actuator including composite cylinder assembly Duane Douglass, James N. Tootle, Terry Benton 1987-08-11
4684280 Clevis connection Gary Feldt 1987-08-04