Timothy J. Shellenberger
31Patents
13h-index
32Co-inventors
81Inventor score
Filing activity: Apr 23, 1987 → Jul 29, 2022
Most-cited inventions
| Patent | Title | Area | Cited by | Status |
|---|---|---|---|---|
| US6053130A | Power vent water heater with electronic control system | Mechanical Engineering; Lighting; Heating | 59 | Expired |
| US5347980A | Dual drainage slope recuperative heat exchanger assembly for fuel-fired condensing furnaces | Emerging Cross-Sectional Technologies | 41 | Expired |
| US6308009A | Electric water heater with electronic control | Electricity | 36 | Expired |
| US5042453A | Compact, high efficiency heat exchanger for a fuel-fired forced air heating furnace | Mechanical Engineering; Lighting; Heating | 33 | Expired |
| US4974579A | Induced draft, fuel-fired furnace apparatus having an improved, high efficiency heat exchanger | Mechanical Engineering; Lighting; Heating | 30 | Expired |
| US7380522B2 | Energy saving water heater | Mechanical Engineering; Lighting; Heating | 28 | Expired |
| US4951651A | Vent overpressurization detection system for a fuel-fired, induced draft furnace | Mechanical Engineering; Lighting; Heating | 26 | Expired |
| US7360506B2 | Low CO water heater | Mechanical Engineering; Lighting; Heating | 21 | Active |
| US5950573A | Power vented water heater with air inlet | Mechanical Engineering; Lighting; Heating | 18 | Expired |
| US4960102A | Fuel-fired condensing type forced air heating furnace | Emerging Cross-Sectional Technologies | 18 | Expired |
| US4729328A | Trap assembly for a condensing fossil fuel furnace | Emerging Cross-Sectional Technologies | 18 | Expired |
| US6137955A | Electric water heater with improved heating element | Mechanical Engineering; Lighting; Heating | 15 | Expired |
| US4887959A | Gas furnace with improved ignition | Mechanical Engineering; Lighting; Heating | 13 | Expired |
| US9335066B2 | Water heating system | Mechanical Engineering; Lighting; Heating | 8 | Active |
| US10281143B2 | Pre-mix fuel-fired appliance with improved heat exchanger interface | Emerging Cross-Sectional Technologies | 7 | Active |
| US9739483B2 | Fuel/air mixture and combustion apparatus and associated methods for use in a fuel-fired heating apparatus | Mechanical Engineering; Lighting; Heating | 7 | Active |
| US9188372B2 | Air conditioner and heat pump condensing unit chassis with enhanced serviceability access | Mechanical Engineering; Lighting; Heating | 6 | Active |
| US9772119B2 | Fuel-fired heating appliance having improved burner assembly | Mechanical Engineering; Lighting; Heating | 6 | Active |
| US4926840A | Pilot gas bypass system for fuel-fired furnaces | Mechanical Engineering; Lighting; Heating | 6 | Expired |
| USD360258S | Heat exchanger for fuel fired furnaces | General | 5 | Expired |
| US6508207B2 | Flammable vapor resistant water heater with low NOx emissions | Mechanical Engineering; Lighting; Heating | 4 | Expired |
| US7261061B2 | Water heater with lint collection detection | Mechanical Engineering; Lighting; Heating | 4 | Expired |
| USD335337S | Heat exchanger for fuel fired furnaces | General | 3 | Expired |
| US10571122B2 | Fuel/air mixture and combustion apparatus and associated methods for use in a fuel-fired heating apparatus | Mechanical Engineering; Lighting; Heating | 2 | Active |
| US9951945B2 | Diffuser plate for premixed burner box | Mechanical Engineering; Lighting; Heating | 2 | Active |
Source: USPTO / EPO open patent data. Inventor disambiguation is heuristic; counts are objective bibliographic measures.