Klaus Hoppner
19Patents
13h-index
34Co-inventors
78Inventor score
Filing activity: Mar 2, 1976 → May 27, 1997
Most-cited inventions
| Patent | Title | Area | Cited by | Status |
|---|---|---|---|---|
| USD364326S | Chain saw | General | 51 | Expired |
| US5570512A | Grip arrangement for a chain saw | Performing Operations; Transporting | 44 | Expired |
| USD377441S | Motor-driven chain saw | General | 39 | Expired |
| US5046566A | Portable handheld tool having a handle arrangement decoupled by antivibration elements | Performing Operations; Transporting | 34 | Expired |
| US4662071A | Motor-drive chain saw with a clutch and oil pump | Mechanical Engineering; Lighting; Heating | 31 | Expired |
| US5699865A | Antivibration device for mounting between a motor unit and a handle unit | Performing Operations; Transporting | 29 | Expired |
| US5595153A | Portable handheld work apparatus having a filter case | Mechanical Engineering; Lighting; Heating | 25 | Expired |
| US4079708A | Control device for the engine of an engine driven saw | Mechanical Engineering; Lighting; Heating | 24 | Expired |
| US4324045A | Motor chain saw with dynamic safety braking device | Performing Operations; Transporting | 22 | Expired |
| US5960549A | Plastic handle member for manually guided power chain saws | Performing Operations; Transporting | 20 | Expired |
| US4370810A | Portable motor chain saw | Mechanical Engineering; Lighting; Heating | 19 | Expired |
| US4964217A | Handle for a chain saw | Performing Operations; Transporting | 17 | Expired |
| US5065708A | Internal combustion engine for a portable handheld work apparatus | Mechanical Engineering; Lighting; Heating | 14 | Expired |
| US4600418A | Air-intake arrangement for a two-stroke engine | Emerging Cross-Sectional Technologies | 13 | Expired |
| US4691681A | Arrangement for controlling the intake air for the carburetor of a hand-held portable tool | Emerging Cross-Sectional Technologies | 8 | Expired |
| US4026020A | Guiding rail arresting device for motor driven saws | Performing Operations; Transporting | 5 | Expired |
| US4958602A | Internal combustion engine | Mechanical Engineering; Lighting; Heating | 5 | Expired |
| US4474269A | Braking device for a power chain saw | Performing Operations; Transporting | 4 | Expired |
| US5544544A | Throttle trigger device for an internal combustion engine of a working tool | Emerging Cross-Sectional Technologies | 1 | Expired |
Source: USPTO / EPO open patent data. Inventor disambiguation is heuristic; counts are objective bibliographic measures.