Johnson Hsu
15Patents
11h-index
21Co-inventors
72Inventor score
Filing activity: Jan 3, 1994 → Oct 19, 2020
Most-cited inventions
| Patent | Title | Area | Cited by | Status |
|---|---|---|---|---|
| US6321034A | Pivotable heater | Mechanical Engineering; Lighting; Heating | 132 | Expired |
| US7088913B1 | Baseboard/upright heater assembly | Mechanical Engineering; Lighting; Heating | 107 | Expired |
| US5893939A | Air purifier and filter assembly therefor | Emerging Cross-Sectional Technologies | 66 | Expired |
| US5613833A | Quick release tilt adjustment mechanism | Mechanical Engineering; Lighting; Heating | 46 | Expired |
| US5761377A | Tower type portable radiant heater | Mechanical Engineering; Lighting; Heating | 38 | Expired |
| US5660605A | Window fan | Emerging Cross-Sectional Technologies | 37 | Expired |
| US5431544A | Tiltable fan assembly | Emerging Cross-Sectional Technologies | 22 | Expired |
| US6948193B2 | Lavatory cleanser dispensing device | Fixed Constructions | 17 | Expired |
| US6214074A | Odor/air purifier mountable under a kitchen cabinet | Emerging Cross-Sectional Technologies | 14 | Expired |
| USD612554S1 | Litter box with air filter | General | 14 | Expired |
| US5997674A | Air purifier and method of manufacture | Emerging Cross-Sectional Technologies | 13 | Expired |
| US10806314B2 | Wet floorcare robot cleaner tank latch | Human Necessities | 8 | Active |
| US7350773B2 | Vortex humidifier | Emerging Cross-Sectional Technologies | 6 | Active |
| US7979923B2 | Urinal deodorizer set | Fixed Constructions | 1 | Active |
| US11712138B2 | Wet floorcare robot cleaner tank latch | Human Necessities | 0 | Active |
Source: USPTO / EPO open patent data. Inventor disambiguation is heuristic; counts are objective bibliographic measures.