John Peter Duffield
19Patents
3h-index
11Co-inventors
57Inventor score
Filing activity: Mar 15, 2002 → May 3, 2024
Most-cited inventions
| Patent | Title | Area | Cited by | Status |
|---|---|---|---|---|
| US6905189B1 | Wet capping tray for ink jet printheads | Performing Operations; Transporting | 12 | Expired |
| US6786578B1 | Multi-color, multi-speed printing apparatus | Performing Operations; Transporting | 7 | Expired |
| US8684511B2 | Ink jet UV pinning for control of gloss | Performing Operations; Transporting | 5 | Active |
| US9718269B2 | Multi-waveform inkjet nozzle correction | Performing Operations; Transporting | 2 | Active |
| US11173724B1 | Woodgrain suppression in inkjet printing | Performing Operations; Transporting | 2 | Active |
| US9079427B2 | Staggered ultra-violet curing systems, structures and processes for inkjet printing | Performing Operations; Transporting | 2 | Active |
| US10000075B2 | Multilayer imaging with a high-gloss clear ink layer | Performing Operations; Transporting | 1 | Active |
| US7396119B2 | Apparatus and methods for water-based ink printing | Performing Operations; Transporting | 1 | Active |
| US7090327B1 | Water-based ink jet printer | Performing Operations; Transporting | 1 | Expired |
| US8616691B2 | Gas removal from a fluid delivery system | Performing Operations; Transporting | 1 | Active |
| US8459778B2 | Reduced gloss banding through low ink volume deposition per print pass | Performing Operations; Transporting | 1 | Active |
| US8672451B2 | Reduced gloss banding through low ink volume deposition per print pass | Performing Operations; Transporting | 0 | Active |
| US10195874B2 | Inert UV inkjet printing having dual curing modes for ultraviolet-curable ink | Performing Operations; Transporting | 0 | Active |
| US8807727B2 | Gas removal from a fluid delivery system | Performing Operations; Transporting | 0 | Active |
| US10752022B2 | Multilayer imaging with a high-gloss clear ink layer | Performing Operations; Transporting | 0 | Active |
| US12320681B2 | Linear rotary encoder | Performing Operations; Transporting | 0 | Active |
| US11525707B2 | Linear rotary encoder | Performing Operations; Transporting | 0 | Active |
| US11667133B2 | Woodgrain suppression in inkjet printing | Performing Operations; Transporting | 0 | Active |
| US12000717B2 | Linear rotary encoder | Performing Operations; Transporting | 0 | Active |
Source: USPTO / EPO open patent data. Inventor disambiguation is heuristic; counts are objective bibliographic measures.