Dave Hein
21Patents
9h-index
14Co-inventors
72Inventor score
Filing activity: Jul 31, 1996 → Dec 7, 2018
Most-cited inventions
| Patent | Title | Area | Cited by | Status |
|---|---|---|---|---|
| US5752810A | Pump with an integral clutch | Mechanical Engineering; Lighting; Heating | 27 | Expired |
| US5896971A | Rotational control apparatus with enhanced cooling and power transfer characteristics | Mechanical Engineering; Lighting; Heating | 24 | Expired |
| USD705272S1 | Snow thrower | General | 21 | Active |
| US5913396A | Rotational control apparatus with bellville return spring assembly | Mechanical Engineering; Lighting; Heating | 16 | Expired |
| US8935909B2 | Replaceable mower blade and assembly | Human Necessities | 15 | Active |
| US8844172B2 | Three-stage snow thrower | Fixed Constructions | 15 | Active |
| US5878858A | Rotational control apparatus with selective fluid actuation supply | Emerging Cross-Sectional Technologies | 14 | Expired |
| USD705271S1 | Auger housing for a snow thrower | General | 11 | Active |
| US8931248B2 | Replaceable mower blade assembly | Human Necessities | 10 | Active |
| USD705820S1 | Three-stage snow thrower | General | 9 | Active |
| USD737335S1 | Auger housing with drift cutters for a snow thrower | General | 6 | Active |
| US9279477B2 | Motion control device | Emerging Cross-Sectional Technologies | 4 | Active |
| US9365989B2 | Three-stage snow thrower | Fixed Constructions | 3 | Active |
| US6786313B2 | Rotational control apparatus | Mechanical Engineering; Lighting; Heating | 2 | Expired |
| US9338942B2 | Replaceable mower blade and assembly | Human Necessities | 2 | Active |
| US8220592B2 | Motion control apparatus | Mechanical Engineering; Lighting; Heating | 1 | Active |
| US11401671B2 | Three-stage snow thrower | Fixed Constructions | 0 | Active |
| US9307697B2 | Mower blade mounting member with replaceable blades | Human Necessities | 0 | Active |
| US6554115B2 | Rotational control apparatus with variable actuation methods | Mechanical Engineering; Lighting; Heating | 0 | Expired |
| US9663911B2 | Snow thrower | Fixed Constructions | 0 | Active |
| US10179983B2 | Three-stage snow thrower | Fixed Constructions | 0 | Active |
Source: USPTO / EPO open patent data. Inventor disambiguation is heuristic; counts are objective bibliographic measures.