Inventor
John R. Washington
Inventor
Hitchin, GB
Overview
Patents· 12 as inventor
Public. Assignee & technology derived from the patent record. Each patent links to its LexDana page.
G03Gprimary
G03GElectrography33%
G06KGraphical data reading14%
A01NPreservation of bodies of humans or animals or plants or parts thereof5%
A61BDiagnosis5%
B21BRolling of metal5%
B21CManufacture of metal sheets, wire, rods, tubes, profiles or like semi-manufactured products otherwise than by rolling5%
B21DWorking or processing of sheet metal or metal tubes, rods or profiles without essentially removing material5%
B41JTypewriters5%
G06FElectric digital data processing5%
G06QInformation and communication technology [ict] specially adapted for administrative, commercial, financial, managerial or supervisory purposes5%
PatentTitleYear
10,881,276Overtube device and method of use202110,222,741Drive shaft electrical contact for print cartridge photoreceptor grounding201910,165,149Methods and systems for automatically generating a name for an electronic document20189,180,684'Autofocus LED print head mechanism'20159,014,585'System and method for detecting bias transfer roll positions using resistance detection'20158,763,919'Method and system for generating machine-readable code'20148,570,543'Device and method for improving xerographic voltage uniformity for an image recording apparatus'20138,340,546'Dual function charging device and charge patterning device cleaner'20127,853,165'Apparatus and method for a multi-tap series resistance heating element in a belt fuser'20107,587,160'Toner repelling stripper finger assembly'20096,490,900'Pipe gauging and rounding apparatus and method'20026,319,949'Pesticidal sprays'2001Career & activity timeline
Assembled from patent assignee/location history and declaration credentials.
2001Patents assigned to SYNGENTA LTD (1)· patent assignee history
2002Patents assigned to AMERICAN CAST IRON PIPE CO (1)· patent assignee history
2009–2019Patents assigned to XEROX CORP (9)· patent assignee history
2009Based in Sandy, GB· patent location history
2010–2015Based in Hitchin, GB· patent location history
2012–2019Based in Hertfordshire, GB· patent location history
2013Patents assigned to WASHINGTON JOHN R (1)· patent assignee history
2018Based in Knebworth, GB· patent location history
2021Patents assigned to ENDOVATE LLC (1)· patent assignee history
2021Based in Scottsdale, AZ, US· patent location history
Inventor activity
Assignee and location history derived from the patent record.
Assignees
| Assignee | Patents | Span |
|---|---|---|
| XEROX CORP | 9 | 2009–2019 |
| AMERICAN CAST IRON PIPE CO | 1 | 2002 |
| ENDOVATE LLC | 1 | 2021 |
| SYNGENTA LTD | 1 | 2001 |
| WASHINGTON JOHN Rself | 1 | 2013 |
Locations
| Location | Patents | Span |
|---|---|---|
| Hitchin, GB | 4 | 2010–2015 |
| Hertfordshire, GB | 3 | 2012–2019 |
| Scottsdale, AZ, US | 1 | 2021 |
| Knebworth, GB | 1 | 2018 |
| Sandy, GB | 1 | 2009 |