Steven D. Pratt
40Patents
14h-index
31Co-inventors
77Inventor score
Filing activity: Oct 5, 1994 → Aug 15, 2006
Most-cited inventions
| Patent | Title | Area | Cited by | Status |
|---|---|---|---|---|
| US6268077A | Portable fuel cell power supply | Emerging Cross-Sectional Technologies | 134 | Expired |
| US6127058A | Planar fuel cell | Emerging Cross-Sectional Technologies | 116 | Expired |
| US5681515A | Method of fabricating an elastomeric keypad | Emerging Cross-Sectional Technologies | 71 | Expired |
| US6080501A | Fuel cell with integral fuel storage | Emerging Cross-Sectional Technologies | 63 | Expired |
| US6699611B2 | Fuel cell having a thermo-responsive polymer incorporated therein | Emerging Cross-Sectional Technologies | 54 | Expired |
| US5937265A | Tooling die insert and rapid method for fabricating same | Emerging Cross-Sectional Technologies | 39 | Expired |
| US6423434B1 | Method and apparatus for managing fuel cell performance | Emerging Cross-Sectional Technologies | 35 | Expired |
| US6406808B1 | Method and apparatus for thermal management of fuel cell systems | Emerging Cross-Sectional Technologies | 34 | Expired |
| US6214487A | Integral sensors for monitoring a fuel cell membrane and methods of monitoring | Emerging Cross-Sectional Technologies | 34 | Expired |
| US6060188A | High pressure coaxial fuel cell | Emerging Cross-Sectional Technologies | 32 | Expired |
| US6132895A | Fuel cell | Emerging Cross-Sectional Technologies | 32 | Expired |
| US5662946A | Adaptable mold base | Performing Operations; Transporting | 24 | Expired |
| US6176953A | Ultrasonic welding process | Emerging Cross-Sectional Technologies | 23 | Expired |
| US5818005A | Electrical discharge machining electrode and rapid method for fabricating same | Performing Operations; Transporting | 18 | Expired |
| US6426158B1 | Method of diluting hydrogen gas exhausted from a fuel cell | Emerging Cross-Sectional Technologies | 14 | Expired |
| US6584825B2 | Method and apparatus for determining the amount of hydrogen in a vessel | Emerging Cross-Sectional Technologies | 13 | Expired |
| US6586124B2 | Method and apparatus for cold temperature operation of fuel cells utilizing hydrides having different heat capacities | Emerging Cross-Sectional Technologies | 13 | Expired |
| US6869708B2 | Means for measuring the liquid level in a reservoir for a fuel cell | Emerging Cross-Sectional Technologies | 10 | Expired |
| US6322918A | Water management system for fuel cells | Emerging Cross-Sectional Technologies | 10 | Expired |
| US5977690A | Piezoelectric switch apparatus for a communication device | Electricity | 10 | Expired |
| US7132192B2 | Fuel cell using variable porosity gas diffusion material | Emerging Cross-Sectional Technologies | 9 | Expired |
| US6689194B2 | Fuel cell system having a replaceable getter element for purifying the fuel supply | Emerging Cross-Sectional Technologies | 6 | Expired |
| USD537742S1 | Tracking device | General | 6 | Expired |
| USD578116S1 | Wireless router | General | 5 | Expired |
| US6015970A | Switch assembly incorporating optical control function | Physics | 5 | Expired |
Source: USPTO / EPO open patent data. Inventor disambiguation is heuristic; counts are objective bibliographic measures.