FW

Frank H. Walker

General Motors: 3 patents #4,693 of 18,328Top 30%
SC Stauffer Chemical: 2 patents #136 of 390Top 35%
UN Unknown: 1 patents #29,356 of 83,584Top 40%
📍 Mill Valley, CA: #52 of 776 inventorsTop 7%
🗺 California: #32,725 of 386,348 inventorsTop 9%
Overall (All Time): #258,451 of 4,157,543Top 7%
18
Patents All Time

Issued Patents All Time

Showing 1–18 of 18 patents

Patent #TitleCo-InventorsDate
8176838 Hydraulic machine arrangement 2012-05-15
8162621 Hydraulic machine arrangement 2012-04-24
8132868 Hydraulic regenerative braking system for a vehicle 2012-03-13
7562944 Hydraulic regenerative braking system for a vehicle 2009-07-21
6537047 Reversible variable displacement hydraulic pump and motor 2003-03-25
6138635 Modular engine having crankshaft segments connected by a spring to provide even firing 2000-10-31
5971092 Vehicle drive system featuring split engine and accessory back drive 1999-10-26
5323688 Hydraulic regenerative braking and four wheel drive system 1994-06-28
5263401 Hydraulic regenerative braking and four wheel drive system 1993-11-23
5101925 Hydraulic wheel motor and pump 1992-04-07
5000282 Hydraulic wheel motor and pump 1991-03-19
4896749 Emergency vehicle braking system and method for using same 1990-01-30
4883141 Hydraulic wheel motor and pump 1989-11-28
4441520 Hydraulic fluid reservoir system Frederick G. Bruso, Harry H. Lyon 1984-04-10
4423028 Control of houseflies by fumigant activity Ordell L. Wolfe 1983-12-27
4414805 Hybrid gas turbine engine and flywheel propulsion system 1983-11-15
4301649 Single rotor engine with turbine exhausting to subatmospheric pressure 1981-11-24
4182625 3-Halo-5-(lower alkoxy) phenoxy alkyl amides Don R. Baker 1980-01-08