Assignee
BELL & HOWELL CO
US·505 granted patents·9,069 citations·filing 1966–1999
Top patents by PatentIndex Score
505 records- 0197US4697246AMethod and apparatus for detecting the engagement of a proper number of articlesBELL & HOWELL CO·Filed 1984·Granted Sep 29, 1987·60 cites·26 claims
- 0297US4492504AMaterials handling systemBELL & HOWELL CO·Filed 1981·Granted Jan 8, 1985·306 cites·19 claims
- 0396US4578718AControl arrangement and method for video tape recorderBELL & HOWELL CO·Filed 1983·Granted Mar 25, 1986·153 cites·9 claims
- 0495US4634107AGripper arm and method of operationBELL & HOWELL CO·Filed 1986·Granted Jan 6, 1987·55 cites·29 claims
- 0595US4576578AInteractive training apparatusBELL & HOWELL CO·Filed 1983·Granted Mar 18, 1986·204 cites·13 claims
- 0695US4177979ASignature gathering machineBELL & HOWELL CO·Filed 1978·Granted Dec 11, 1979·55 cites·10 claims
- 0794US5125214AInserter station for envelope insertingBELL & HOWELL CO·Filed 1991·Granted Jun 30, 1992·62 cites·16 claims
- 0894US4210785ATape replay systemBELL & HOWELL CO·Filed 1978·Granted Jul 1, 1980·83 cites·17 claims
- 0994US4174890AElectronically controlled microfilm photographic image utilization deviceBELL & HOWELL CO·Filed 1978·Granted Nov 20, 1979·34 cites·23 claims
- 1093US4802096AControlled direction non-contact detection system for automatic guided vehiclesBELL & HOWELL CO·Filed 1987·Granted Jan 31, 1989·112 cites·30 claims
- 1193US4798543AInteractive training method and systemBELL & HOWELL CO·Filed 1983·Granted Jan 17, 1989·184 cites·33 claims
- 1293US4379497AVehicle collision avoidance systemBELL & HOWELL CO·Filed 1980·Granted Apr 12, 1983·80 cites·17 claims
- 1393US4316196AIllumination and light gate utilization methods and apparatusBELL & HOWELL CO·Filed 1979·Granted Feb 16, 1982·74 cites·8 claims
- 1493US4268119AColor-separating optical systemBELL & HOWELL CO·Filed 1979·Granted May 19, 1981·84 cites·8 claims
- 1593US4226324AArticle turnover assemblyBELL & HOWELL CO·Filed 1978·Granted Oct 7, 1980·46 cites·7 claims
- 1693US4156244AInk jet printer ink cartridgeBELL & HOWELL CO·Filed 1977·Granted May 22, 1979·47 cites·8 claims
- 1793US4076247AMoving target assembly and controlBELL & HOWELL CO·Filed 1976·Granted Feb 28, 1978·90 cites·17 claims
- 1893US3930889AMultiple source battery-powered apparatusBELL & HOWELL CO·Filed 1974·Granted Jan 6, 1976·182 cites·8 claims
- 1992US5119954AMulti-pass sorting machineBELL & HOWELL CO·Filed 1990·Granted Jun 9, 1992·154 cites·38 claims
- 2092US4734865AInsertion machine with audit trail and command protocolBELL & HOWELL CO·Filed 1986·Granted Mar 29, 1988·163 cites·59 claims
- 2192US4122457AInk jet printer with deflected nozzlesBELL & HOWELL CO·Filed 1976·Granted Oct 24, 1978·45 cites·26 claims
- 2292US4023903ALight composer for providing even field illumination and diffuse lightBELL & HOWELL CO·Filed 1975·Granted May 17, 1977·53 cites·27 claims
- 2391US4891088ADocument forwarding systemBELL & HOWELL CO·Filed 1987·Granted Jan 2, 1990·67 cites·34 claims
- 2491US4639873AInsertion machine with postage categorization and selective merchandisingBELL & HOWELL CO·Filed 1986·Granted Jan 27, 1987·107 cites·20 claims
- 2591US4522385ASheet feeder systemsBELL & HOWELL CO·Filed 1982·Granted Jun 11, 1985·41 cites·20 claims
- 2691US4179709AVideo information bandwidth compressionBELL & HOWELL CO·Filed 1978·Granted Dec 18, 1979·55 cites·130 claims
- 2791US4110020AElectronically controlled microfilm photographic image utilization deviceBELL & HOWELL CO·Filed 1976·Granted Aug 29, 1978·25 cites·25 claims
- 2891USD243526SMicrofiche file or similar articleBELL & HOWELL CO·Filed 1975·Granted Mar 1, 1977·26 cites·1 claims
- 2990US4460903AInk jet catcherBELL & HOWELL CO·Filed 1982·Granted Jul 17, 1984·46 cites·1 claims
- 3090US4257324APosition monitoring methods and apparatusBELL & HOWELL CO·Filed 1978·Granted Mar 24, 1981·39 cites·23 claims
- 3190US4078790ASheet collectorBELL & HOWELL CO·Filed 1977·Granted Mar 14, 1978·38 cites·9 claims
- 3290US4009952AIntermittent rotary motion deviceBELL & HOWELL CO·Filed 1975·Granted Mar 1, 1977·33 cites·12 claims
- 3389US4595188AEnvelope feeding system and speed control for mail sorting machinesBELL & HOWELL CO·Filed 1984·Granted Jun 17, 1986·57 cites·27 claims
- 3489US4582312APrinting apparatus for insertion machineBELL & HOWELL CO·Filed 1984·Granted Apr 15, 1986·51 cites·49 claims
- 3589US4568161AComputer controlled slide projector interface arrangementBELL & HOWELL CO·Filed 1984·Granted Feb 4, 1986·30 cites·9 claims
- 3689US4307791ALine follower vehicle with scanning headBELL & HOWELL CO·Filed 1978·Granted Dec 29, 1981·59 cites·13 claims
- 3789US4210940AVariable format tape replay systemBELL & HOWELL CO·Filed 1978·Granted Jul 1, 1980·34 cites·16 claims
- 3889US3983679AApparatus and method of processing mailBELL & HOWELL CO·Filed 1975·Granted Oct 5, 1976·44 cites·8 claims
- 3989US3956701APersonal paging receiver with swivel clip and distributed antennaBELL & HOWELL CO·Filed 1974·Granted May 11, 1976·67 cites·20 claims
- 4088US5150894ADiverter mechanism for flat document conveyor systemBELL & HOWELL CO·Filed 1991·Granted Sep 29, 1992·38 cites·27 claims
- 4188US4669716AMethod and device for deflecting a sheet prior to feedingBELL & HOWELL CO·Filed 1985·Granted Jun 2, 1987·39 cites·47 claims
- 4288US4201378ASkew detectorBELL & HOWELL CO·Filed 1978·Granted May 6, 1980·33 cites·7 claims
- 4387US4884797AFeeder module for use in a document forwarding systemBELL & HOWELL CO·Filed 1987·Granted Dec 5, 1989·31 cites·25 claims
- 4487US4352200AWireless aircraft passenger audio entertainment systemBELL & HOWELL CO·Filed 1979·Granted Sep 28, 1982·114 cites·25 claims
- 4587US4324484AMicrofilm filing systemBELL & HOWELL CO·Filed 1980·Granted Apr 13, 1982·23 cites·28 claims
- 4687US4223882AAutomated in-line mailing systemBELL & HOWELL CO·Filed 1978·Granted Sep 23, 1980·41 cites·11 claims
- 4787US4216505ATransducer head vibration dampeningBELL & HOWELL CO·Filed 1978·Granted Aug 5, 1980·28 cites·29 claims
- 4887US4060228APull-foot feedBELL & HOWELL CO·Filed 1976·Granted Nov 29, 1977·32 cites·6 claims
- 4987US4034973AAutomated in-line mailing systemBELL & HOWELL CO·Filed 1975·Granted Jul 12, 1977·46 cites·20 claims
- 5087US4030821ARear screen projector with remote projection capabilityBELL & HOWELL CO·Filed 1976·Granted Jun 21, 1977·22 cites·11 claims
Showing the top 50 of 505 patent records by PatentIndex Score.
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