Inventor
Ralph A. Shoemaker
Inventor
Rochester, NY, US
Overview
Patents· 25 as inventor
Public. Assignee & technology derived from the patent record. Each patent links to its LexDana page.
G03Gprimary
G03GElectrography83%
G01NInvestigating or analysing materials by determining their chemical or physical properties10%
B65HHandling thin or filamentary material, e.g. sheets, webs, cables3%
H04NPictorial communication, e.g. television3%
PatentTitleYear
7,773,239'System for managing replaceable modules in a digital printing apparatus'20107,649,638'System for managing replaceable modules in a digital printing apparatus'20107,515,843'Color mis-registration measurement using an infra-red color density sensor'20096,940,613'System for managing replaceable modules in a digital printing apparatus'20056,792,220'Dual density gray patch toner control'20046,606,463'Optical toner concentration sensor'20036,438,329'Method and apparatus for automatic customer replaceable unit (CRU) setup and cleaner blade lubrication'20026,198,885'Non-uniform development indicator'20016,081,348'Ros beam failure detector'20006,016,204'Actuator performance indicator'20005,995,775'ROS pixel size growth detector'19995,966,573'Seamed flexible electrostatographic imaging belt having a permanent localized solid attribute'19995,963,761'Area coverage sensor calibration and algorithm for seam detection noise eliminator on a seamed photoreceptor'19995,960,228'Dirt level early warning system'19995,956,542'Tribo decay rest recovery and developer material break in procedure'19995,946,521'Xerographic xerciser including a hierarchy system for determining part replacement and failure'19995,903,796'P/R process control patch uniformity analyzer'19995,895,141'Sensorless TC control'19995,893,008'Photoreceptor parking deletion detector'19995,864,730'Photoreceptor seam signature'19995,519,497'Control develop mass in a color system'19965,083,161'Densitometer for measuring developability'19925,078,497'Densitometer for a liquid developer material'19924,831,410'Automatic exposure control system for flash exposure photocopiers'19894,638,986'Feedability sensor for a vacuum corrugated feeder'1987Career & activity timeline
Assembled from patent assignee/location history and declaration credentials.
1987–2010Patents assigned to XEROX CORP (25)· patent assignee history
1987–2010Based in Rochester, NY, US· patent location history
Inventor activity
Assignee and location history derived from the patent record.
Assignees
| Assignee | Patents | Span |
|---|---|---|
| XEROX CORP | 25 | 1987–2010 |
Locations
| Location | Patents | Span |
|---|---|---|
| Rochester, New York, US | 25 | 1987–2010 |