John E. Cook
147Patents
31h-index
45Co-inventors
90Inventor score
Filing activity: Jan 6, 1975 → Jul 16, 2004
Most-cited inventions
| Patent | Title | Area | Cited by | Status |
|---|---|---|---|---|
| US5146902A | Positive pressure canister purge system integrity confirmation | Mechanical Engineering; Lighting; Heating | 120 | Expired |
| US4717117A | Vacuum valve using improved diaphragm | Mechanical Engineering; Lighting; Heating | 92 | Expired |
| US5635630A | Leak detection assembly | Mechanical Engineering; Lighting; Heating | 86 | Expired |
| US5191870A | Diagnostic system for canister purge system | Mechanical Engineering; Lighting; Heating | 85 | Expired |
| US6065909A | Drill bit assembly with an adjustable hole saw | Emerging Cross-Sectional Technologies | 67 | Expired |
| US5390645A | Fuel vapor leak detection system | Mechanical Engineering; Lighting; Heating | 64 | Expired |
| US5069188A | Regulated canister purge solenoid valve having improved purging at engine idle | Emerging Cross-Sectional Technologies | 64 | Expired |
| US6089081A | Automotive evaporative leak detection system and method | Mechanical Engineering; Lighting; Heating | 63 | Expired |
| US5267470A | Pressure sensor mounting for canister purge system | Mechanical Engineering; Lighting; Heating | 63 | Expired |
| US5415822A | Manufacture of composite extrusions | Emerging Cross-Sectional Technologies | 62 | Expired |
| US5297529A | Positive pressure canister purge system integrity confirmation | Mechanical Engineering; Lighting; Heating | 58 | Expired |
| US5950576A | Proportional coolant valve | Emerging Cross-Sectional Technologies | 56 | Expired |
| US5474050A | Leak detection pump with integral vent seal | Mechanical Engineering; Lighting; Heating | 53 | Expired |
| US5967124A | Vapor leak detection system having a shared electromagnet coil for operating both pump and vent valve | Mechanical Engineering; Lighting; Heating | 51 | Expired |
| US5411004A | Positive pressure canister purge system integrity confirmation | Mechanical Engineering; Lighting; Heating | 48 | Expired |
| US5383437A | Integrity confirmation of evaporative emission control system against leakage | Mechanical Engineering; Lighting; Heating | 47 | Expired |
| US6328021A | Diaphragm for an integrated pressure management apparatus | Physics | 46 | Expired |
| US4547555A | Method for rapid kill gas injection to gas phase polymerization reactors during power failures | Emerging Cross-Sectional Technologies | 39 | Expired |
| US4703737A | Vapor control valve and system therefor | Mechanical Engineering; Lighting; Heating | 39 | Expired |
| US5188141A | Vacuum boost valve | Emerging Cross-Sectional Technologies | 38 | Expired |
| US4840350A | Electrically actuated EGR valve | Emerging Cross-Sectional Technologies | 38 | Expired |
| US4834947A | Reactor system for rapid kill gas injection to gas phase polymerization reactors | Performing Operations; Transporting | 37 | Expired |
| US4662604A | Force balanced EGR valve with position feedback | Mechanical Engineering; Lighting; Heating | 36 | Expired |
| US5499614A | Means and method for operating evaporative emission system leak detection pump | Mechanical Engineering; Lighting; Heating | 36 | Expired |
| US5531205A | Rotary diesel electric EGR valve | Mechanical Engineering; Lighting; Heating | 35 | Expired |
Source: USPTO / EPO open patent data. Inventor disambiguation is heuristic; counts are objective bibliographic measures.