Vickers, Inc.
205Patents
0Active
205Granted
42Portfolio score
Filing activity: Nov 6, 1974 → Jul 20, 1999
Most-cited patents
| Patent | Title | Area | Cited by | Status |
|---|---|---|---|---|
| US4319568A | Liquid dispensing apparatus | Human Necessities | 251 | Expired |
| US5230364A | Pressure relief valve | Emerging Cross-Sectional Technologies | 94 | Expired |
| US4823552A | Failsafe electrohydraulic control system for variable displacement pump | Mechanical Engineering; Lighting; Heating | 86 | Expired |
| US5073091A | Power transmission | Mechanical Engineering; Lighting; Heating | 77 | Expired |
| US5778671A | Electrohydraulic system and apparatus with bidirectional electric-motor/hydraulic-pump unit | Mechanical Engineering; Lighting; Heating | 66 | Expired |
| US5135031A | Power transmission | Emerging Cross-Sectional Technologies | 59 | Expired |
| US5181837A | Electric motor driven inline hydraulic apparatus | Mechanical Engineering; Lighting; Heating | 53 | Expired |
| US5611923A | Filter assembly having quick connect/disconnect sealing valve means | Emerging Cross-Sectional Technologies | 48 | Expired |
| US5778932A | Electrohydraulic proportional pressure reducing-relieving valve | Emerging Cross-Sectional Technologies | 47 | Expired |
| US4615358A | Pilot valves for two-stage hydraulic devices | Emerging Cross-Sectional Technologies | 44 | Expired |
| US4961055A | Linear capacitance displacement transducer | Physics | 41 | Expired |
| US5354182A | Unitary electric-motor/hydraulic-pump assembly with noise reduction features | Mechanical Engineering; Lighting; Heating | 38 | Expired |
| US4501291A | Relief valve arrangement | Emerging Cross-Sectional Technologies | 37 | Expired |
| US5261796A | Electric-motor in-line integrated hydraulic pump | Mechanical Engineering; Lighting; Heating | 37 | Expired |
| US3958884A | Interferometric apparatus | Physics | 36 | Expired |
| US5708311A | Integrated electric motor driven in line hydraulic pump | Mechanical Engineering; Lighting; Heating | 35 | Expired |
| US4090416A | Gear boxes | Mechanical Engineering; Lighting; Heating | 34 | Expired |
| US4303287A | Locking mechanism for a storage cabinet | Emerging Cross-Sectional Technologies | 34 | Expired |
| US4729717A | Power transmission | Mechanical Engineering; Lighting; Heating | 34 | Expired |
| US4811561A | Power transmission | Physics | 33 | Expired |
| US5199718A | Rotary machine shaft seal | Mechanical Engineering; Lighting; Heating | 33 | Expired |
| US5249140A | Electrohydraulic distributed control system with identical master and slave controllers | Physics | 32 | Expired |
| US5792483A | Injection molding machine with an electric drive | Performing Operations; Transporting | 32 | Expired |
| US5235809A | Hydraulic circuit for shaking a bucket on a vehicle | Fixed Constructions | 30 | Expired |
| US4757745A | Microwave antenna and dielectric property change frequency compensation system in electrohydraulic servo with piston position control | Mechanical Engineering; Lighting; Heating | 30 | Expired |
Source: USPTO / EPO open patent data. Counts and citation impact are objective bibliographic measures.