Richard E. Niggemann
24Patents
13h-index
9Co-inventors
70Inventor score
Filing activity: Sep 30, 1981 → Dec 23, 1998
Most-cited inventions
| Patent | Title | Area | Cited by | Status |
|---|---|---|---|---|
| US6182435A | Thermal and energy management method and apparatus for an aircraft | Emerging Cross-Sectional Technologies | 132 | Expired |
| US4494171A | Impingement cooling apparatus for heat liberating device | Emerging Cross-Sectional Technologies | 104 | Expired |
| US4962444A | Cold chassis for cooling electronic circuit components on an electronic board | Electricity | 80 | Expired |
| US4883117A | Swirl flow heat exchanger with reverse spiral configuration | Emerging Cross-Sectional Technologies | 51 | Expired |
| US4993487A | Spiral heat exchanger | Emerging Cross-Sectional Technologies | 40 | Expired |
| US4880055A | Impingement plate type heat exchanger | Emerging Cross-Sectional Technologies | 27 | Expired |
| US5025856A | Crossflow jet impingement heat exchanger | Emerging Cross-Sectional Technologies | 27 | Expired |
| US4786015A | Structural cooling unit | Performing Operations; Transporting | 25 | Expired |
| US6152215A | High intensity cooler | Electricity | 24 | Expired |
| US4975803A | Cold plane system for cooling electronic circuit components | Mechanical Engineering; Lighting; Heating | 18 | Expired |
| US4697427A | Forced flow evaporator for unusual gravity conditions | Mechanical Engineering; Lighting; Heating | 16 | Expired |
| US5828148A | Method and apparatus for reducing windage losses in rotating equipment and electric motor/generator employing same | Emerging Cross-Sectional Technologies | 14 | Expired |
| US4516987A | Deaerator usable in a system for a steam powered torpedo and deaerating method | Performing Operations; Transporting | 14 | Expired |
| US4936380A | Impingement plate type heat exchanger | Emerging Cross-Sectional Technologies | 11 | Expired |
| US4603732A | Heat management system for spacecraft | Performing Operations; Transporting | 11 | Expired |
| US4790370A | Heat exchanger apparatus for electrical components | Emerging Cross-Sectional Technologies | 9 | Expired |
| US5029640A | Gas-liquid impingement plate type heat exchanger | Emerging Cross-Sectional Technologies | 7 | Expired |
| US4637456A | Heat exchanger | Emerging Cross-Sectional Technologies | 7 | Expired |
| US4643250A | Fluid jet impingement heat exchanger for operation in zero gravity conditions | Emerging Cross-Sectional Technologies | 7 | Expired |
| US4944163A | Flow control apparatus and method | Mechanical Engineering; Lighting; Heating | 7 | Expired |
| US4690210A | Fluid jet impingement heat exchanger for operation in zero gravity conditions | Emerging Cross-Sectional Technologies | 5 | Expired |
| US4598695A | Solar boiler or energy storage apparatus | Emerging Cross-Sectional Technologies | 4 | Expired |
| US4527514A | Direct contact liquid heater and heating method | Emerging Cross-Sectional Technologies | 4 | Expired |
| US4459082A | Self-acting automatic clearance control apparatus for a turbine | Mechanical Engineering; Lighting; Heating | 3 | Expired |
Source: USPTO / EPO open patent data. Inventor disambiguation is heuristic; counts are objective bibliographic measures.