Eric P. Hamkins
15Patents
8h-index
25Co-inventors
72Inventor score
Filing activity: May 26, 1995 → Jan 25, 2021
Most-cited inventions
| Patent | Title | Area | Cited by | Status |
|---|---|---|---|---|
| US7654369B2 | Hydraulic vibration damper piston with an integral electrically operated adjustment valve | Mechanical Engineering; Lighting; Heating | 98 | Active |
| US10125750B2 | Radial piston pump assemblies and use thereof in hydraulic circuits | Mechanical Engineering; Lighting; Heating | 84 | Active |
| US5579642A | Pressure compensating hydraulic control system | Mechanical Engineering; Lighting; Heating | 38 | Expired |
| US7905088B2 | Energy recovery and reuse techniques for a hydraulic system | Mechanical Engineering; Lighting; Heating | 33 | Active |
| US7823379B2 | Energy recovery and reuse methods for a hydraulic system | Mechanical Engineering; Lighting; Heating | 29 | Active |
| US5950429A | Hydraulic control valve system with load sensing priority | Mechanical Engineering; Lighting; Heating | 20 | Expired |
| US6640834B1 | Electrohydraulic valve for controlling a cam shaft phasing mechanism of an internal combustion engine | Emerging Cross-Sectional Technologies | 17 | Expired |
| US9091281B2 | System for allocating fluid from multiple pumps to a plurality of hydraulic functions on a priority basis | Mechanical Engineering; Lighting; Heating | 10 | Active |
| US9032724B2 | Command based method for allocating fluid flow from a plurality of pumps to multiple hydraulic functions | Mechanical Engineering; Lighting; Heating | 7 | Active |
| US8899034B2 | Hydraulic system with fluid flow summation control of a variable displacement pump and priority allocation of fluid flow | Mechanical Engineering; Lighting; Heating | 6 | Active |
| US8215107B2 | Flow summation system for controlling a variable displacement hydraulic pump | Emerging Cross-Sectional Technologies | 4 | Active |
| US8453783B2 | Differential pressure control | Mechanical Engineering; Lighting; Heating | 2 | Active |
| US10072679B2 | Systems and methods for selectively engaged regeneration of a hydraulic system | Mechanical Engineering; Lighting; Heating | 0 | Active |
| US9752597B2 | Metered fluid source connection to downstream functions in PCLS systems | Mechanical Engineering; Lighting; Heating | 0 | Active |
| US11549525B2 | Electronically adjustable pressure compensated flow control with pressure limiting relief valve | Mechanical Engineering; Lighting; Heating | 0 | Active |
Source: USPTO / EPO open patent data. Inventor disambiguation is heuristic; counts are objective bibliographic measures.