EXXON ENTERPRISES, A DIVISION OF EXXON CORPORATION

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Patent Activity in the Last 10 Years

Technologies

Intl Class Technology Matters Rank in Class
 
  
 
B41J TYPEWRITERS; SELECTIVE PRINTING MECHANISMS, i.e. MECHANISMS PRINTING OTHERWISE THAN FROM A FORME; CORRECTION OF TYPOGRAPHICAL ERRORS 2100

Top Patents (by citation)

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Recent Publications

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Recent Patents

Patent # Title Filing Date Issue Date Intl Class
5285215 Ink jet apparatus and method of operationOct 27, 87Feb 08, 94[B41J]
5202659 Method and apparatus for selective multi-resonant operation of an ink jet controlling dot sizeFeb 04, 92Apr 13, 93[B41J]

Expired/Abandoned/Withdrawn Patents

Patent # Title Status Filing Date Issue/Pub Date Intl Class
4507000 Character print wheel with drive elementsExpiredSep 23, 83Mar 26, 85[B41J]
4488158 Electrosensitive recording mediumExpiredNov 02, 83Dec 11, 84[G01D]
4482599 Support layer for electric discharge transfer materialsExpiredJul 06, 82Nov 13, 84[B41M, G01D, G32B]
4479997 Electric discharge facsimile recording materialExpiredJul 06, 82Oct 30, 84[G01D, B32B]
4468705 Data transition enhancementExpiredDec 07, 81Aug 28, 84[H04N]
4461465 Facsimile sheet feeding apparatusExpiredOct 26, 81Jul 24, 84[B65H]
4454194 Lyophilization process for preparing composite particles for use in electroconductive transfer films and products produced therewithExpiredJul 06, 82Jun 12, 84[B41M, B41C, G03G, B32B]
4422098 Internal test method and apparatus for facsimile transceiverExpiredOct 30, 81Dec 20, 83[H04N]
4403224 Smudge-free electrosensitive recording medium and method of inhibiting smudge formation on said mediumExpiredJan 22, 82Sep 06, 83[G01D]
4403232 Electrosensitive recording paper having improved recording densityExpiredFeb 03, 82Sep 06, 83[G01D]
4401026 Free flight hammer for impact printerExpiredJan 18, 82Aug 30, 83[B41J]
4377761 Linear stepper motor drive with a read/write head in a floppy disc systemExpiredFeb 11, 80Mar 22, 83[H02K]
4362980 Position error recovery and motor control systemExpiredSep 03, 80Dec 07, 82[G05B]
4359763 Floppy disc driveExpiredAug 04, 80Nov 16, 82[G11B]
4343555 Chemical print elementExpiredMay 05, 80Aug 10, 82[B41J]
4341926 Apparatus for the direct connection of ancillary equipment to the telephone networkExpiredMay 08, 80Jul 27, 82[H04M]
4342043 Sheet feeding for a facsimile system with anti-static electricity additiveExpiredFeb 11, 80Jul 27, 82[G01D]
4339504 Low odor electrosensitive paperExpiredOct 15, 80Jul 13, 82[B32B]
4331983 Facsimile signalling methodExpiredFeb 11, 80May 25, 82[H04N]
4331984 Method and apparatus for synchronizing facsimile transmissionsExpiredFeb 11, 80May 25, 82[H04N]

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