SAUER GmbH
91Patents
19Active
91Granted
43Portfolio score
Filing activity: Nov 28, 1990 → Feb 27, 2023 · 3 expiring within 5 years
Most-cited patents
| Patent | Title | Area | Cited by | Status |
|---|---|---|---|---|
| US5156576A | Compact integrated transaxle | Emerging Cross-Sectional Technologies | 110 | Expired |
| US5207060A | Tandem hydraulic motor | Mechanical Engineering; Lighting; Heating | 58 | Expired |
| US5390759A | Driving mechanism for an automotive propel drive | Mechanical Engineering; Lighting; Heating | 58 | Expired |
| US5505279A | Hydrostatic transmission and axle assembly | Emerging Cross-Sectional Technologies | 55 | Expired |
| US5969520A | Magnetic ball joystick | Emerging Cross-Sectional Technologies | 45 | Expired |
| US5626204A | Hydrostatic transaxle | Emerging Cross-Sectional Technologies | 41 | Expired |
| US5501578A | Hydrostatic axial piston pump with three bearing arrangement | Mechanical Engineering; Lighting; Heating | 40 | Expired |
| US5335750A | Dual mode transmission control | Mechanical Engineering; Lighting; Heating | 40 | Expired |
| US6135231A | Method and means for providing a steer-assist and anti-spin system for hydrostatically propelled vehicles | Performing Operations; Transporting | 34 | Expired |
| US5218886A | Hydrostatic transmission center section | Emerging Cross-Sectional Technologies | 29 | Expired |
| US5775453A | Traction control system and method for hydraulically propelled vehicles | Mechanical Engineering; Lighting; Heating | 26 | Expired |
| US5531190A | Electrohydraulic fan control | Mechanical Engineering; Lighting; Heating | 26 | Expired |
| US6202783A | Hydrostatically driven vehicle with retarder valve | Performing Operations; Transporting | 24 | Expired |
| US5881629A | Control device for variable hydraulic machines | Mechanical Engineering; Lighting; Heating | 23 | Expired |
| US5875630A | Hydraulic drive assembly | Mechanical Engineering; Lighting; Heating | 22 | Expired |
| US5542494A | Hydrostatic transmission and axle assembly | Emerging Cross-Sectional Technologies | 22 | Expired |
| US5560203A | Transmission control system and method | Mechanical Engineering; Lighting; Heating | 21 | Expired |
| US5211077A | Hydrostatic transmission center section | Emerging Cross-Sectional Technologies | 20 | Expired |
| US5513717A | Hydrostatic transmission and axle assembly | Emerging Cross-Sectional Technologies | 18 | Expired |
| US5241872A | Swashplate centering mechanism for a variable displacement pump | Emerging Cross-Sectional Technologies | 18 | Expired |
| US6033188A | Means and method for varying margin pressure as a function of pump displacement in a pump with load sensing control | Mechanical Engineering; Lighting; Heating | 17 | Expired |
| US6109030A | Apparatus and method for ganging multiple open circuit pumps | Mechanical Engineering; Lighting; Heating | 17 | Expired |
| US6145287A | Hydrostatic circuit for harvesting machine | Mechanical Engineering; Lighting; Heating | 17 | Expired |
| US5802931A | Axle driving apparatus | Emerging Cross-Sectional Technologies | 15 | Expired |
| US5165233A | Charge pressure priority valve | Emerging Cross-Sectional Technologies | 14 | Expired |
Source: USPTO / EPO open patent data. Counts and citation impact are objective bibliographic measures.