Assignee
RANK XEROX LTD
119 granted patents·1,522 citations·filing 1973–1988
Top patents by PatentIndex Score
119 records- 0196US4158498ABlade cleaning system for a reproducing apparatusRANK XEROX LTD·Filed 1977·Granted Jun 19, 1979·50 cites·5 claims
- 0295US4064313AHeat fixing member for electrophotographic copiersRANK XEROX LTD·Filed 1976·Granted Dec 20, 1977·57 cites·8 claims
- 0395US4053152ASheet feeding deviceRANK XEROX LTD·Filed 1976·Granted Oct 11, 1977·50 cites·5 claims
- 0494US3941558AContact-heating fixing device for electrophotographyRANK XEROX LTD·Filed 1974·Granted Mar 2, 1976·34 cites·10 claims
- 0593US4190246APaper feeding systemRANK XEROX LTD·Filed 1978·Granted Feb 26, 1980·47 cites·1 claims
- 0692US4134147ATransfer humidity control deviceRANK XEROX LTD·Filed 1977·Granted Jan 9, 1979·34 cites·13 claims
- 0792US4068938AElectrostatic color printing utilizing discrete potentialsRANK XEROX LTD·Filed 1975·Granted Jan 17, 1978·37 cites·11 claims
- 0891US4711561AToner recovery deviceRANK XEROX LTD·Filed 1986·Granted Dec 8, 1987·40 cites·16 claims
- 0989US4078286AHeat fixing roll for electrophotographic duplicatorsRANK XEROX LTD·Filed 1977·Granted Mar 14, 1978·39 cites·9 claims
- 1089US4073585ASheet removing device for use in electrophotographic copying machineRANK XEROX LTD·Filed 1976·Granted Feb 14, 1978·30 cites·3 claims
- 1189US4068950AVariable platen coverRANK XEROX LTD·Filed 1976·Granted Jan 17, 1978·22 cites·16 claims
- 1288US4426435AProcess for forming an electrophotographic member having a protective layerRANK XEROX LTD·Filed 1981·Granted Jan 17, 1984·31 cites·4 claims
- 1388US4184671AAutomatic document handler in duplex copying machineRANK XEROX LTD·Filed 1978·Granted Jan 22, 1980·34 cites·6 claims
- 1488US4087172ADocument handling apparatusRANK XEROX LTD·Filed 1976·Granted May 2, 1978·34 cites·2 claims
- 1585US4382118AElectrophotographic member with transport layer having inorganic n-type particlesRANK XEROX LTD·Filed 1981·Granted May 3, 1983·27 cites·4 claims
- 1685US4024838ADeveloper liquid supplying deviceRANK XEROX LTD·Filed 1976·Granted May 24, 1977·23 cites·13 claims
- 1784US4233611ARecording head for electrostatic printing apparatusRANK XEROX LTD·Filed 1978·Granted Nov 11, 1980·22 cites·15 claims
- 1884US3932755ADevice for detecting double sheet feedingRANK XEROX LTD·Filed 1974·Granted Jan 13, 1976·31 cites·4 claims
- 1983US4144835AContact heat fixing apparatusRANK XEROX LTD·Filed 1977·Granted Mar 20, 1979·25 cites·9 claims
- 2083US4044719ADeveloping apparatus in electro-copying machinesRANK XEROX LTD·Filed 1976·Granted Aug 30, 1977·21 cites·2 claims
- 2183US3968044AMilled liquid developerRANK XEROX LTD·Filed 1974·Granted Jul 6, 1976·18 cites·7 claims
- 2280US4077358ADeactivating device for a magnetic brush developer used in a multicolor electrophotographic copying machineRANK XEROX LTD·Filed 1977·Granted Mar 7, 1978·20 cites·2 claims
- 2380US3967896AVariable edge fadeout apparatus for electrostatic reproduction machinesRANK XEROX LTD·Filed 1975·Granted Jul 6, 1976·20 cites·8 claims
- 2480US3937960ACharging device for electrophotographyRANK XEROX LTD·Filed 1974·Granted Feb 10, 1976·17 cites·4 claims
- 2579US4087676AFixing apparatus with heat and pressure for electrophotographic copiersRANK XEROX LTD·Filed 1977·Granted May 2, 1978·21 cites·1 claims
- 2679US4030725APaper tray for copying machinesRANK XEROX LTD·Filed 1976·Granted Jun 21, 1977·36 cites·9 claims
- 2778US4190359ACopier document handling systemRANK XEROX LTD·Filed 1978·Granted Feb 26, 1980·12 cites·5 claims
- 2877US4040615AOriginal discharging device for copiersRANK XEROX LTD·Filed 1976·Granted Aug 9, 1977·13 cites·2 claims
- 2977US3934870ASheet feeding devicesRANK XEROX LTD·Filed 1973·Granted Jan 27, 1976·17 cites·3 claims
- 3077US3932035AApparatus for transferring a toner imageRANK XEROX LTD·Filed 1974·Granted Jan 13, 1976·13 cites·9 claims
- 3175US4131359ASensitive medium cleaner for use in electrophotographic copying machineRANK XEROX LTD·Filed 1977·Granted Dec 26, 1978·27 cites·2 claims
- 3273US4110035ACleaning system for an electrophotographic printing machineRANK XEROX LTD·Filed 1976·Granted Aug 29, 1978·15 cites·6 claims
- 3372US4748473APrinting apparatus with detack deviceRANK XEROX LTD·Filed 1986·Granted May 31, 1988·17 cites·20 claims
- 3471US4079227AContact heat fixing apparatus for electrophotographic reproduction machinesRANK XEROX LTD·Filed 1976·Granted Mar 14, 1978·13 cites·5 claims
- 3570US4348579AFixing roll in a copying machineRANK XEROX LTD·Filed 1980·Granted Sep 7, 1982·17 cites·3 claims
- 3670US4062534AStripper arrangement for removing various sized copy sheets from fuser rollRANK XEROX LTD·Filed 1976·Granted Dec 13, 1977·16 cites·1 claims
- 3767US4119831AContact pressure adjusting device in heating pressing fixing apparatus for electrophotographic copiersRANK XEROX LTD·Filed 1977·Granted Oct 10, 1978·11 cites·3 claims
- 3867US4104692ADevice for detecting abnormal temperature in fixerRANK XEROX LTD·Filed 1977·Granted Aug 1, 1978·21 cites·2 claims
- 3965US4084807APaper feeding rollerRANK XEROX LTD·Filed 1976·Granted Apr 18, 1978·15 cites·1 claims
- 4063US4145137AElectrophotographic reproducing machine blade cleaning apparatusRANK XEROX LTD·Filed 1977·Granted Mar 20, 1979·14 cites·4 claims
- 4163US4092099ACopier paper delivery means in a heat-fixing device of a copying machineRANK XEROX LTD·Filed 1977·Granted May 30, 1978·10 cites·7 claims
- 4263US3940514AMethod of coating electrostatographic carrier particlesRANK XEROX LTD·Filed 1973·Granted Feb 24, 1976·11 cites·8 claims
- 4362US3965861ASeparated roller liquid developmentRANK XEROX LTD·Filed 1974·Granted Jun 29, 1976·8 cites·4 claims
- 4460US4128327ATransfer material feed apparatus for electrophotographic copying machinesRANK XEROX LTD·Filed 1977·Granted Dec 5, 1978·12 cites·5 claims
- 4560US4114021AHeat roll fixing device for electrophotographic copying machineRANK XEROX LTD·Filed 1977·Granted Sep 12, 1978·16 cites·4 claims
- 4660US4078862AApparatus for producing a composite copy of an original document and selectively positioned supplemental documentsRANK XEROX LTD·Filed 1976·Granted Mar 14, 1978·9 cites·8 claims
- 4759US3989926ADevice for preventing overheating of electrophotographic fixing deviceRANK XEROX LTD·Filed 1975·Granted Nov 2, 1976·14 cites·3 claims
- 4859US3982832AElectrostatographic copying machinesRANK XEROX LTD·Filed 1974·Granted Sep 28, 1976·9 cites·2 claims
- 4959US3931792AAbrasive liquid developing apparatusRANK XEROX LTD·Filed 1974·Granted Jan 13, 1976·7 cites·7 claims
- 5058US4193680ATransfer sheet drying device for electrophotographic copying machineRANK XEROX LTD·Filed 1977·Granted Mar 18, 1980·8 cites·3 claims
Showing the top 50 of 119 patent records by PatentIndex Score.
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