Steven J. Spencer
33Patents
8h-index
41Co-inventors
75Inventor score
Filing activity: Sep 13, 1993 → Mar 15, 2013
Most-cited inventions
| Patent | Title | Area | Cited by | Status |
|---|---|---|---|---|
| US5333682A | Heat exchanger tube | Emerging Cross-Sectional Technologies | 30 | Expired |
| US5669441A | Heat transfer tube and method of manufacture | Emerging Cross-Sectional Technologies | 27 | Expired |
| US5975196A | Heat transfer tube | Mechanical Engineering; Lighting; Heating | 26 | Expired |
| US6167950A | Heat transfer tube | Mechanical Engineering; Lighting; Heating | 23 | Expired |
| US7044200B2 | Two-phase refrigerant distribution system for multiple pass evaporator coils | Mechanical Engineering; Lighting; Heating | 23 | Expired |
| US7851080B2 | Battery cooling plate design with discrete channels | Emerging Cross-Sectional Technologies | 13 | Active |
| US5752313A | Tube expander with force sensor | Emerging Cross-Sectional Technologies | 10 | Expired |
| US5933953A | Method of manufacturing a heat transfer tube | Emerging Cross-Sectional Technologies | 10 | Expired |
| US7687182B2 | Pressurized coolant for stamped plate fuel cell without diffusion media in the inactive feed region | Emerging Cross-Sectional Technologies | 6 | Active |
| US8465863B2 | Batteries and components thereof and methods of making and assembling the same | Emerging Cross-Sectional Technologies | 3 | Active |
| US7604888B2 | Stamped PEM fuel cell plate manufacturing | Emerging Cross-Sectional Technologies | 3 | Active |
| US7901832B2 | Bipolar plate with inlet and outlet water management features | Emerging Cross-Sectional Technologies | 3 | Active |
| US9008813B2 | Method to improve the dimensional accuracy and surface quality for large spring back compensation for fuel cell bipolar plate forming | Emerging Cross-Sectional Technologies | 2 | Active |
| US9017895B2 | Dual channel step in fuel cell plate | Emerging Cross-Sectional Technologies | 2 | Active |
| US8465879B2 | Reinforced fuel cell metal plate perimeter | Emerging Cross-Sectional Technologies | 1 | Active |
| US8129075B2 | Bipolar plate header formed features | Emerging Cross-Sectional Technologies | 1 | Active |
| US7823277B2 | Pre-nesting of the active area on plates to reduce thickness variation | Emerging Cross-Sectional Technologies | 1 | Active |
| US9178224B2 | Sealing design for stamped plate fuel cells | Emerging Cross-Sectional Technologies | 1 | Active |
| US8845762B2 | Batteries and components thereof and methods of making and assembling the same | Emerging Cross-Sectional Technologies | 1 | Active |
| US8453334B2 | Fuel cell plate measurement features | Emerging Cross-Sectional Technologies | 1 | Active |
| US5781996A | Method of manufacturing heat transfer tube | Emerging Cross-Sectional Technologies | 1 | Expired |
| US7855031B2 | Method of making bipolar plate with coolant channels | Emerging Cross-Sectional Technologies | 1 | Active |
| US8778567B1 | Unique pre-form design for two-step forming of stainless steel fuel cell bipolar plates | Emerging Cross-Sectional Technologies | 1 | Active |
| US8722274B2 | Datum insert for shorting protection on a fuel cell plate | Emerging Cross-Sectional Technologies | 1 | Active |
| US8802326B2 | Fuel cell separator plate | Emerging Cross-Sectional Technologies | 1 | Active |
Source: USPTO / EPO open patent data. Inventor disambiguation is heuristic; counts are objective bibliographic measures.