Joseph Gerstmann
26Patents
18h-index
45Co-inventors
81Inventor score
Filing activity: Jul 18, 1977 → Mar 14, 2008
Most-cited inventions
| Patent | Title | Area | Cited by | Status |
|---|---|---|---|---|
| US4175706A | Spray nozzle | Performing Operations; Transporting | 42 | Expired |
| US6869633B2 | Automated food frying device and method | Performing Operations; Transporting | 41 | Expired |
| US4445464A | High efficiency water heating system | Mechanical Engineering; Lighting; Heating | 40 | Expired |
| US4798240A | Integrated space heating, air conditioning and potable water heating appliance | Emerging Cross-Sectional Technologies | 40 | Expired |
| US4222350A | Efficient heating and domestic hot water apparatus | Mechanical Engineering; Lighting; Heating | 35 | Expired |
| US4159081A | Plural valve, hand-held spray apparatus | Performing Operations; Transporting | 35 | Expired |
| US7343719B2 | Automated food processing system and method | Performing Operations; Transporting | 33 | Expired |
| US4338888A | High efficiency water heating system | Mechanical Engineering; Lighting; Heating | 32 | Expired |
| US8034390B2 | Automated food processing system and method | Performing Operations; Transporting | 32 | Active |
| US7891289B2 | Automated food frying device and method | Performing Operations; Transporting | 31 | Active |
| US4502626A | Combustion product condensing water heater | Emerging Cross-Sectional Technologies | 29 | Expired |
| US7981455B2 | Automated food processing system and method | Performing Operations; Transporting | 28 | Active |
| US5778679A | Method and apparatus for increasing acceptance and adjusting the rate of pressure variations within a prespecified range in precharged fluid storage systems | Mechanical Engineering; Lighting; Heating | 28 | Expired |
| US4501253A | On-board automotive methane compressor | Emerging Cross-Sectional Technologies | 26 | Expired |
| US4148195A | Liquid piston heat-actuated heat pump and methods of operating same | Mechanical Engineering; Lighting; Heating | 25 | Expired |
| US5758820A | Heat recovery system | Physics | 24 | Expired |
| US4471907A | Venturi pressurizer for incompressible-liquid circulating systems | Emerging Cross-Sectional Technologies | 24 | Expired |
| US4403572A | Combustion product condensing water heater | Emerging Cross-Sectional Technologies | 19 | Expired |
| USRE33082E | Combustion product condensing water heater | General | 17 | Expired |
| US5772113A | Two-pipe heat pump system with isolated tank coil for domestic hot water | Emerging Cross-Sectional Technologies | 16 | Expired |
| US5558273A | Two-pipe system for refrigerant isolation | Emerging Cross-Sectional Technologies | 12 | Expired |
| US6675746B2 | Heat exchanger with internal pin elements | Mechanical Engineering; Lighting; Heating | 11 | Expired |
| US5171144A | Pressurized air seal for combustion chamber | Mechanical Engineering; Lighting; Heating | 6 | Expired |
| US5033957A | Vaporizing diesel burner | Mechanical Engineering; Lighting; Heating | 6 | Expired |
| US5913289A | Firetube heat exchanger with corrugated internal fins | Mechanical Engineering; Lighting; Heating | 4 | Expired |
Source: USPTO / EPO open patent data. Inventor disambiguation is heuristic; counts are objective bibliographic measures.