JD

John Peter Duffield

EI Electronics For Imaging: 17 patents #7 of 251Top 3%
VI Vutek, Incorporated: 2 patents #5 of 13Top 40%
Overall (All Time): #230,253 of 4,157,543Top 6%
19
Patents All Time

Issued Patents All Time

Patent #TitleCo-InventorsDate
12320681 Linear rotary encoder 2025-06-03
12000717 Linear rotary encoder 2024-06-04
11667133 Woodgrain suppression in inkjet printing Hui Zhang 2023-06-06
11525707 Linear rotary encoder 2022-12-13
11173724 Woodgrain suppression in inkjet printing Hui Zhang 2021-11-16
10752022 Multilayer imaging with a high-gloss clear ink layer Bruce Klemann, Joshua MCGRATH 2020-08-25
10195874 Inert UV inkjet printing having dual curing modes for ultraviolet-curable ink Jonathan Barry, Lianhui Cong, Arthur L. Cleary 2019-02-05
10000075 Multilayer imaging with a high-gloss clear ink layer Bruce Klemann, Joshua MCGRATH 2018-06-19
9718269 Multi-waveform inkjet nozzle correction 2017-08-01
9079427 Staggered ultra-violet curing systems, structures and processes for inkjet printing 2015-07-14
8807727 Gas removal from a fluid delivery system Chris Porter 2014-08-19
8684511 Ink jet UV pinning for control of gloss Joseph A. Lahut, Dwight Cram, Peter Heath 2014-04-01
8672451 Reduced gloss banding through low ink volume deposition per print pass Joseph A. Lahut, Dwight Cram, Peter Heath 2014-03-18
8616691 Gas removal from a fluid delivery system Chris Porter 2013-12-31
8459778 Reduced gloss banding through low ink volume deposition per print pass Joseph A. Lahut, Dwight Cram, Peter Heath 2013-06-11
7396119 Apparatus and methods for water-based ink printing 2008-07-08
7090327 Water-based ink jet printer 2006-08-15
6905189 Wet capping tray for ink jet printheads 2005-06-14
6786578 Multi-color, multi-speed printing apparatus Richard P. Aschman, Peter Heath 2004-09-07