Mark Shepherd
19Patents
11h-index
18Co-inventors
69Inventor score
Filing activity: Jul 5, 1977 → Nov 11, 2010
Most-cited inventions
| Patent | Title | Area | Cited by | Status |
|---|---|---|---|---|
| US4940996A | Drop-on-demand printhead | Performing Operations; Transporting | 47 | Expired |
| US6089698A | Nozzles and methods of and apparatus for forming nozzles | Emerging Cross-Sectional Technologies | 37 | Expired |
| US6833656B2 | Electro active devices | Emerging Cross-Sectional Technologies | 35 | Expired |
| US4942409A | Drop-on-demand printhead | Performing Operations; Transporting | 27 | Expired |
| US7302068B2 | Loudspeaker | Electricity | 27 | Expired |
| US7166952B2 | Piezoelectric structures | Electricity | 26 | Expired |
| US5959643A | Modular drop-on-demand printing apparatus method of manufacture thereof, and method of drop-on-demand printing | Performing Operations; Transporting | 26 | Expired |
| US5463414A | Multi-channel array droplet deposition apparatus | Performing Operations; Transporting | 26 | Expired |
| US4929256A | Multi-disc cutter and method of manufacture | Performing Operations; Transporting | 17 | Expired |
| US4092636A | Protective alarm system for window using reflected microwave energy | Physics | 16 | Expired |
| US6959471B2 | Method of manufacturing a droplet deposition apparatus | Emerging Cross-Sectional Technologies | 11 | Expired |
| US7224813B2 | Loudspeaker using an electro-active device | Emerging Cross-Sectional Technologies | 9 | Expired |
| US5097637A | Multi-disc cutter and method of manufacture | Performing Operations; Transporting | 7 | Expired |
| US7486004B2 | Piezolelectric devices | Electricity | 7 | Expired |
| US7161279B2 | Curved electro-active actuators | Electricity | 6 | Expired |
| US7069795B2 | Sensor using electro active curved helix and double helix | Physics | 2 | Expired |
| US7227296B2 | Protective housing for a ceramic actuator | Electricity | 1 | Expired |
| US9969158B2 | Electrospray emitter and method of manufacture | Performing Operations; Transporting | 1 | Active |
| US6991323B1 | Multi-channel array droplet deposition apparatus | Performing Operations; Transporting | 0 | Expired |
Source: USPTO / EPO open patent data. Inventor disambiguation is heuristic; counts are objective bibliographic measures.