Norman E. Jolliff
20Patents
11h-index
12Co-inventors
72Inventor score
Filing activity: Dec 6, 1976 → Jul 23, 2004
Most-cited inventions
| Patent | Title | Area | Cited by | Status |
|---|---|---|---|---|
| US5373697A | Hydraulic fluid system and dump valve mechanism for a hydrostatic transaxle | Performing Operations; Transporting | 66 | Expired |
| US5042252A | Neutral shifting mechanism for hydrostatic transmission | Mechanical Engineering; Lighting; Heating | 62 | Expired |
| US6301885A | Hydrostatic transmission having two-piece pump and motor block assembly | Emerging Cross-Sectional Technologies | 54 | Expired |
| US6643959B2 | Implement having engine and transaxle module | Mechanical Engineering; Lighting; Heating | 51 | Expired |
| US4103566A | Transaxle | Mechanical Engineering; Lighting; Heating | 32 | Expired |
| US6151990A | Hydrostatic transaxle having a casing split along one or more vertical planes | Emerging Cross-Sectional Technologies | 29 | Expired |
| US6758290B2 | Modular hydrostatic transaxle for zero turn radius mower | Mechanical Engineering; Lighting; Heating | 25 | Expired |
| US6010423A | Reversible variable speed transmission and transaxle having pressure compensating flow metering device | Mechanical Engineering; Lighting; Heating | 20 | Expired |
| US5860884A | Variable speed transmission and transaxle | Performing Operations; Transporting | 19 | Expired |
| US5971881A | Variable speed transmission and transaxle | Performing Operations; Transporting | 15 | Expired |
| US6422109B1 | Hydrostatic transaxle having axial piston motor and method for manufacturing transaxles | Emerging Cross-Sectional Technologies | 11 | Expired |
| US5701738A | Mechanical disconnect for variable speed hydrostatic transmission | Performing Operations; Transporting | 9 | Expired |
| US5183138A | Transmission parking brake | Emerging Cross-Sectional Technologies | 7 | Expired |
| US4212210A | Multi-speed transmission with H-pattern shift | Emerging Cross-Sectional Technologies | 6 | Expired |
| US6817960B2 | Hydrostatic transaxle having axial piston motor and method for manufacturing transaxles | Emerging Cross-Sectional Technologies | 6 | Expired |
| USRE32125E | Transmission | General | 5 | Expired |
| US6484497B1 | Neutral brake | Mechanical Engineering; Lighting; Heating | 4 | Expired |
| US5974798A | Mechanical disconnect for a variable speed hydrostatic transmission | Performing Operations; Transporting | 2 | Expired |
| US6454673B1 | Self adjusting wet brake for use with a transmission or transaxle | Mechanical Engineering; Lighting; Heating | 1 | Expired |
| US7089644B2 | Method for manufacturing transaxles | Emerging Cross-Sectional Technologies | 1 | Expired |
Source: USPTO / EPO open patent data. Inventor disambiguation is heuristic; counts are objective bibliographic measures.