Poclain Hydraulics
🏢 View company profile →48Patents
2Active
48Granted
37Portfolio score
Filing activity: Oct 14, 1976 → Apr 4, 2006 · 2 expiring within 5 years
Most-cited patents
| Patent | Title | Area | Cited by | Status |
|---|---|---|---|---|
| US5201570A | Vehicle equipped with an anti-skid system | Mechanical Engineering; Lighting; Heating | 24 | Expired |
| US4326450A | Fluid mechanism with axially movable valve-seat | Performing Operations; Transporting | 19 | Expired |
| US4404896A | Pressurized fluid engine equipped with means for selecting its speed of rotation | Mechanical Engineering; Lighting; Heating | 17 | Expired |
| US5333705A | Assembly of a hydraulic motor and brake | Mechanical Engineering; Lighting; Heating | 17 | Expired |
| US5220854A | Mechanism casing provided with particular venting devices | Emerging Cross-Sectional Technologies | 15 | Expired |
| US5224411A | "Hydraulic circuit for supplying at least one hydraulic motor incorporating ""disengageable"" pistons" | Mechanical Engineering; Lighting; Heating | 15 | Expired |
| US4171732A | Device for fixing and driving a displacement member of a vehicle | Mechanical Engineering; Lighting; Heating | 15 | Expired |
| US4724742A | Motor or pump mechanism having at least two distinct active cylinder capacities | Mechanical Engineering; Lighting; Heating | 13 | Expired |
| US5437338A | Hydraulic drive unit for driving a drilling tool | Mechanical Engineering; Lighting; Heating | 13 | Expired |
| US5220790A | Assembly of a pressurized fluid motor with multiple cubic capacities and a brake associated therewith | Mechanical Engineering; Lighting; Heating | 12 | Expired |
| US5115890A | Pressure fluid mechanism such as a motor or a pump coupled to a braking device | Mechanical Engineering; Lighting; Heating | 12 | Expired |
| US5186094A | Pressurized fluid mechanism comprising at least two distinct operational cylinder capacities | Mechanical Engineering; Lighting; Heating | 10 | Expired |
| US4719843A | Hydraulic mechanism, engine or pump, provided with rollers mounted on the pistons and with members for holding said rollers in position | Mechanical Engineering; Lighting; Heating | 10 | Expired |
| US5390495A | Assembly of a hydraulic motor and of a brake and compactor applying same | Fixed Constructions | 10 | Expired |
| US5081906A | Mechanism, motor pump, incorporating pistons supporting, rollers for abutment of said pistons on a cam | Mechanical Engineering; Lighting; Heating | 9 | Expired |
| US5558003A | Hydraulic motor provided with a device for selecting its active cubic capacity | Mechanical Engineering; Lighting; Heating | 9 | Expired |
| US4469012A | Pressurized fluid mechanism comprising reaction rollers mounted on pistons | Mechanical Engineering; Lighting; Heating | 8 | Expired |
| US5435135A | Reversible pressurized fluid mechanism such as a motor or a pump and having at least two operating cylinder capacities | Mechanical Engineering; Lighting; Heating | 8 | Expired |
| US5855115A | Auxiliary hydraulic motor | Mechanical Engineering; Lighting; Heating | 8 | Expired |
| US5152658A | Hydrostatic system for lift truck | Performing Operations; Transporting | 7 | Expired |
| US4454802A | Piston assembly for a fluid mechanism with reaction plate, complete with slipper block | Mechanical Engineering; Lighting; Heating | 7 | Expired |
| US4723636A | Braking device with multiple effects | Mechanical Engineering; Lighting; Heating | 6 | Expired |
| US5632191A | Piston roller alignment configuration for a radial piston mechanism | Mechanical Engineering; Lighting; Heating | 6 | Expired |
| US4157056A | Multi-cylinder hydraulic mechanism | Mechanical Engineering; Lighting; Heating | 6 | Expired |
| US5730041A | Hydrostatic assembly with controlled spin | Mechanical Engineering; Lighting; Heating | 5 | Expired |
Source: USPTO / EPO open patent data. Counts and citation impact are objective bibliographic measures.