Manfred Erhardt
22Patents
6h-index
10Co-inventors
62Inventor score
Filing activity: Nov 14, 1975 → May 14, 1993
Most-cited inventions
| Patent | Title | Area | Cited by | Status |
|---|---|---|---|---|
| US5074080A | Tool for the precision working of tooth flanks of hardened gears | Emerging Cross-Sectional Technologies | 12 | Expired |
| US4677962A | Gearlike tool for dressing abrasive, gearlike, precision machining tools | Performing Operations; Transporting | 10 | Expired |
| US4630404A | Apparatus for manufacturing and machining gears | Emerging Cross-Sectional Technologies | 8 | Expired |
| US5129185A | Method for the precision working of the tooth flanks of particularly hardened gears | Emerging Cross-Sectional Technologies | 7 | Expired |
| US4649671A | Method for the precision working of the flanks of gears with a gear-shaped tool coated with hard-material granules and a method for dressing such a tool | Performing Operations; Transporting | 7 | Expired |
| US4757644A | Method and apparatus for manufacturing and machining gears | Emerging Cross-Sectional Technologies | 6 | Expired |
| US4287659A | Method and apparatus for exchanging tools in hobbing machines | Emerging Cross-Sectional Technologies | 6 | Expired |
| US4689918A | Apparatus for manufacturing and working of gears | Emerging Cross-Sectional Technologies | 5 | Expired |
| US4694617A | Method for the precision working of the tooth system of bevel gears | Emerging Cross-Sectional Technologies | 4 | Expired |
| US4776137A | Method for manufacturing and working of gears | Emerging Cross-Sectional Technologies | 4 | Expired |
| US4045917A | Gear grinding machine | Performing Operations; Transporting | 4 | Expired |
| US4265575A | Tooth-edge gear working machine | Emerging Cross-Sectional Technologies | 3 | Expired |
| US5377457A | Method for generating of gear-shaped precision-working tools, in particular for regrinding shaving gears, and a gear-shaped tool, in particular a shaving gear, to which the method can be applied | Emerging Cross-Sectional Technologies | 3 | Expired |
| US5343656A | Grinding tool and the like made of a ceramic material coated with extremely hard abrasive granules | Performing Operations; Transporting | 3 | Expired |
| US4602458A | Apparatus for the manufacture or working of gears | Performing Operations; Transporting | 3 | Expired |
| US4799473A | Gearlike dressing tool | Performing Operations; Transporting | 2 | Expired |
| US4630402A | Apparatus for the manufacture or machining of straight or helically toothed workpieces | Performing Operations; Transporting | 2 | Expired |
| US4739587A | Rolling drive for a gear-grinding machine | Performing Operations; Transporting | 1 | Expired |
| US4610576A | Single-tooth cutter for sloping the faces of the teeth of gears | Emerging Cross-Sectional Technologies | 1 | Expired |
| US4633619A | Apparatus for the manufacture or machining of gears by rolling on a tool having abrasive working surfaces | Emerging Cross-Sectional Technologies | 1 | Expired |
| US4748772A | Apparatus for the precision working of the tooth system of bevel gears | Emerging Cross-Sectional Technologies | 0 | Expired |
| US4976044A | Scanner head for a tooth-flank scanning device | Physics | 0 | Expired |
Source: USPTO / EPO open patent data. Inventor disambiguation is heuristic; counts are objective bibliographic measures.