David Heaps
15Patents
2h-index
12Co-inventors
47Inventor score
Filing activity: Dec 17, 2002 → Jun 9, 2017
Most-cited inventions
| Patent | Title | Area | Cited by | Status |
|---|---|---|---|---|
| US8628317B2 | Vacuum pump with an axial oil feed conduit | Mechanical Engineering; Lighting; Heating | 3 | Active |
| US9417181B2 | Dynamic measurement of density using terahertz radiation with real-time thickness measurement for process control | Physics | 2 | Active |
| US9606054B2 | Methods, sampling device and apparatus for terahertz imaging and spectroscopy of coated beads, particles and/or microparticles | Physics | 2 | Active |
| US8651833B2 | Combined gas and liquid pump | Mechanical Engineering; Lighting; Heating | 1 | Active |
| US7207782B2 | Vacuum pump | Mechanical Engineering; Lighting; Heating | 0 | Expired |
| US10118884B2 | Acetic acid process | Physics | 0 | Active |
| US9683570B2 | Vacuum pump | Mechanical Engineering; Lighting; Heating | 0 | Active |
| US10837283B2 | Vacuum pump with eccentrically driven vane (eccentric pump design with crank pin) | Mechanical Engineering; Lighting; Heating | 0 | Active |
| US10683864B2 | Twin vane rotary vacuum pump | Mechanical Engineering; Lighting; Heating | 0 | Active |
| US9803642B2 | Vacuum pump with eccentrically driven vane (eccentric pump design) | Mechanical Engineering; Lighting; Heating | 0 | Active |
| US11143188B2 | Vacuum pump reed valve which will reduce cold start torque | Mechanical Engineering; Lighting; Heating | 0 | Active |
| US11168691B2 | Rotary vacuum pump with a rotor end groove | Mechanical Engineering; Lighting; Heating | 0 | Active |
| US10480465B2 | Vacuum pump and system of a vacuum pump and an engine | Mechanical Engineering; Lighting; Heating | 0 | Active |
| US9856877B2 | Vacuum pump having a disconnectable drive coupling | Mechanical Engineering; Lighting; Heating | 0 | Active |
| US10371148B2 | Vacuum pump | Mechanical Engineering; Lighting; Heating | 0 | Active |
Source: USPTO / EPO open patent data. Inventor disambiguation is heuristic; counts are objective bibliographic measures.