Michael M. Walsh
37Patents
14h-index
34Co-inventors
81Inventor score
Filing activity: May 16, 1975 → Mar 10, 2023
Most-cited inventions
| Patent | Title | Area | Cited by | Status |
|---|---|---|---|---|
| US4434617A | Start-up and control method and apparatus for resonant free piston Stirling engine | Mechanical Engineering; Lighting; Heating | 54 | Expired |
| US6110612A | Structure for common access and support of fuel cell stacks | Emerging Cross-Sectional Technologies | 49 | Expired |
| US6096450A | Fuel cell assembly fluid flow plate having conductive fibers and rigidizing material therein | Emerging Cross-Sectional Technologies | 35 | Expired |
| US4380219A | Valve disabling mechanism | Mechanical Engineering; Lighting; Heating | 27 | Expired |
| US4200081A | Valve selector | Mechanical Engineering; Lighting; Heating | 26 | Expired |
| US4458489A | Resonant free-piston Stirling engine having virtual rod displacer and linear electrodynamic machine control of displacer drive/damping | Mechanical Engineering; Lighting; Heating | 26 | Expired |
| US6372372B1 | Clamping system for a fuel cell stack | Emerging Cross-Sectional Technologies | 23 | Expired |
| US4253491A | Fluid flow regulating valve and system | Emerging Cross-Sectional Technologies | 22 | Expired |
| US4230149A | Fluid flow regulating valve and system | Emerging Cross-Sectional Technologies | 20 | Expired |
| US6541148B1 | Manifold system for a fuel cell stack | Emerging Cross-Sectional Technologies | 19 | Expired |
| US6146779A | Fluid flow plate, fuel cell assembly system, and method employing same for controlling heat in fuel cells | Emerging Cross-Sectional Technologies | 18 | Expired |
| US6492044B1 | Reactant conditioning for high temperature fuel cells | Emerging Cross-Sectional Technologies | 16 | Expired |
| US4305356A | Valve selector assembly | Mechanical Engineering; Lighting; Heating | 14 | Expired |
| US5998054A | Fuel cell membrane hydration and fluid metering | Emerging Cross-Sectional Technologies | 14 | Expired |
| US6001502A | Current conducting end plate of fuel cell assembly | Emerging Cross-Sectional Technologies | 13 | Expired |
| US5469881A | Valve assemblies | Emerging Cross-Sectional Technologies | 13 | Expired |
| US4545341A | Means and method of balancing multi-cylinder reciprocating machines | Emerging Cross-Sectional Technologies | 10 | Expired |
| US6489048B1 | Operating a fuel cell system during low power demand | Emerging Cross-Sectional Technologies | 8 | Expired |
| US4593608A | Lightweight piston-rod assembly for a reciprocating machine | Emerging Cross-Sectional Technologies | 7 | Expired |
| US4065100A | Hoist load brake | Performing Operations; Transporting | 7 | Expired |
| US6528198B1 | Fuel cell membrane hydration and fluid metering | Emerging Cross-Sectional Technologies | 6 | Expired |
| US6610431B1 | Method and apparatus for establishing a negative pressure inside an enclosure that houses a fuel cell system | Emerging Cross-Sectional Technologies | 6 | Expired |
| US4432204A | Linear hydraulic drive system for a Stirling engine | Mechanical Engineering; Lighting; Heating | 5 | Expired |
| US6787263B2 | Method and apparatus for establishing a negative pressure inside an enclosure that houses a fuel cell system | Emerging Cross-Sectional Technologies | 4 | Expired |
| US6913848B2 | Fuel cell reactant control | Emerging Cross-Sectional Technologies | 4 | Expired |
Source: USPTO / EPO open patent data. Inventor disambiguation is heuristic; counts are objective bibliographic measures.