Ray M. Hauser
26Patents
13h-index
4Co-inventors
70Inventor score
Filing activity: Mar 2, 1989 → Dec 3, 2004
Most-cited inventions
| Patent | Title | Area | Cited by | Status |
|---|---|---|---|---|
| US5314387A | Hydrostatic transmission | Performing Operations; Transporting | 204 | Expired |
| US5201692A | Rider transaxle having hydrostatic transmission | Performing Operations; Transporting | 157 | Expired |
| US5078222A | Zero turn transmission | Mechanical Engineering; Lighting; Heating | 156 | Expired |
| US5392670A | Heavy duty hydrostatic transaxle having parallel pump motor dual-reduction and driven-axle shafts | Emerging Cross-Sectional Technologies | 90 | Expired |
| US5555727A | Auxiliary pumps for axle driving apparatus including hydrostatic transmission | Mechanical Engineering; Lighting; Heating | 88 | Expired |
| US5771758A | Axle driving apparatus having improved casing design | Emerging Cross-Sectional Technologies | 68 | Expired |
| US5613409A | Axle driving apparatus having improved casing design | Emerging Cross-Sectional Technologies | 67 | Expired |
| US5501640A | Transaxle having hydrostatic transmission with hydraulic reduction | Emerging Cross-Sectional Technologies | 39 | Expired |
| US5330394A | Rider transaxle having improved hydrostatic transmission | Emerging Cross-Sectional Technologies | 37 | Expired |
| US5628189A | Charge pump for axle driving apparatus including hydrostatic transmission | Performing Operations; Transporting | 34 | Expired |
| US5616092A | Transaxle having hydrostatic transmission with expansion chamber | Emerging Cross-Sectional Technologies | 23 | Expired |
| US6550243B2 | Hydrostatic transmission | Emerging Cross-Sectional Technologies | 17 | Expired |
| US6256989A | Method and apparatus for improved hydrostatic transmission having bypass | Emerging Cross-Sectional Technologies | 17 | Expired |
| US5768892A | Rider transaxle having improved hydrostatic transmission | Emerging Cross-Sectional Technologies | 13 | Expired |
| US6014861A | Hydrostatic transmission | Emerging Cross-Sectional Technologies | 12 | Expired |
| US5497623A | Hydrostatic pump and motor unit | Emerging Cross-Sectional Technologies | 12 | Expired |
| US5557931A | Charge pump for axle driving apparatus including hydrostatic transmission | Mechanical Engineering; Lighting; Heating | 11 | Expired |
| US6261201A | Differential gear mechanism | Emerging Cross-Sectional Technologies | 11 | Expired |
| US5423182A | Improved hydrostatic transmission | Performing Operations; Transporting | 9 | Expired |
| US6526749B1 | Hydrostatic transmission | Emerging Cross-Sectional Technologies | 7 | Expired |
| US6301884A | Brake design for a hydrostatic transaxle | Emerging Cross-Sectional Technologies | 7 | Expired |
| US7036311B2 | Hydrostatic transmission | Emerging Cross-Sectional Technologies | 6 | Expired |
| US6941753B1 | Hydrostatic transmission | Emerging Cross-Sectional Technologies | 5 | Expired |
| US5689955A | Hydrostatic transaxle having improved brake design | Emerging Cross-Sectional Technologies | 4 | Expired |
| US6256988A | Rider transaxle having improved hydrostatic transmission | Emerging Cross-Sectional Technologies | 2 | Expired |
Source: USPTO / EPO open patent data. Inventor disambiguation is heuristic; counts are objective bibliographic measures.