Robert Douglas Cryer
16Patents
8h-index
50Co-inventors
75Inventor score
Filing activity: Sep 18, 1992 → Jan 20, 2017
Most-cited inventions
| Patent | Title | Area | Cited by | Status |
|---|---|---|---|---|
| US8997904B2 | System and method for powering a hydraulic pump | Emerging Cross-Sectional Technologies | 321 | Active |
| US9579980B2 | System and method for powering a hydraulic pump | Emerging Cross-Sectional Technologies | 163 | Active |
| US10358035B2 | System and method for powering a hydraulic pump | Electricity | 156 | Active |
| US6985803B2 | System and method for monitoring the condition of a vehicle | Performing Operations; Transporting | 34 | Expired |
| US5394851A | Electronic fuel injection system for large compression ignition engine | Emerging Cross-Sectional Technologies | 30 | Expired |
| US6349706B1 | High injection rate, decreased injection duration diesel engine fuel system | Mechanical Engineering; Lighting; Heating | 16 | Expired |
| US6931352B2 | System and method for monitoring the condition of a heat exchange unit | Performing Operations; Transporting | 13 | Expired |
| US6325044A | Apparatus and method for suppressing diesel engine emissions | Emerging Cross-Sectional Technologies | 10 | Expired |
| US6286479A | Method and system for predictably assessing performance of a fuel pump in a locomotive | Mechanical Engineering; Lighting; Heating | 7 | Expired |
| US6889133B2 | System and process for detection of weak or non-functioning cylinders in engines | Mechanical Engineering; Lighting; Heating | 5 | Expired |
| US6535810B2 | System and process for detection of weak cylinders in a diesel engine | Mechanical Engineering; Lighting; Heating | 4 | Expired |
| US8985555B2 | Drive assembly and apparatus for hoist | Performing Operations; Transporting | 4 | Active |
| US7165442B2 | Method of detecting a water leak in a locomotive | Physics | 3 | Expired |
| US7756717B2 | Lubricant management method for a vehicle | Mechanical Engineering; Lighting; Heating | 3 | Active |
| US7051715B2 | Apparatus and method for suppressing diesel engine emissions | Mechanical Engineering; Lighting; Heating | 2 | Expired |
| US6996467B2 | System and process for detection of weak or non-functioning cylinders in engines | Mechanical Engineering; Lighting; Heating | 0 | Expired |
Source: USPTO / EPO open patent data. Inventor disambiguation is heuristic; counts are objective bibliographic measures.