LTG Lufttechnische Gesellschaft mit beschrankter

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Patent Activity in the Last 10 Years

Technologies

Intl Class Technology Matters Rank in Class
 
  
 
B65G TRANSPORT OR STORAGE DEVICES, e.g. CONVEYERS FOR LOADING OR TIPPING; SHOP CONVEYER SYSTEMS; PNEUMATIC TUBE CONVEYERS 166
 
  
 
F04D NON-POSITIVE-DISPLACEMENT PUMPS173
 
  
 
F24F AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING 144

Top Patents (by citation)

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Recent Publications

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Recent Patents

Patent # Title Filing Date Issue Date Intl Class
5803707 Slide-in cross current ventilatorAug 30, 94Sep 08, 98[F04D]
5690165 Ventilation device for a space zoneJul 27, 95Nov 25, 97[F24F]
5213196 Support frame for a continuous conveyor installationFeb 12, 92May 25, 93[B65G]

Expired/Abandoned/Withdrawn Patents

Patent # Title Status Filing Date Issue/Pub Date Intl Class
6129020 Air exhaust device for printing machinesExpiredApr 29, 97Oct 10, 00[B08B, B41F]
5950540 Swingable conveyor device for printing unitsExpiredMay 05, 97Sep 14, 99[B65G]
5819520 Ventilation system for a machine having at least one rotatable partExpiredJan 11, 95Oct 13, 98[D01H]
5749156 Drying apparatus for cans using heated airExpiredJan 27, 97May 12, 98[F26B]
5719155 Chroman derivative and pharmaceutical use thereofExpiredJul 10, 95Feb 17, 98[A61K, C07D]
5683512 Varnishing machineExpiredApr 08, 96Nov 04, 97[B05C]
5667589 Apparatus for supplying a varnishing cylinder of a varnishing machine with a varnish filmExpiredApr 08, 96Sep 16, 97[B05C]
5667591 Device for adjusting pressure applied to a varnishing cylinder of a varnishing machineExpiredApr 08, 96Sep 16, 97[B05C]
5647889 Air handling apparatus and method for textile machinesExpiredJun 28, 94Jul 15, 97[B01D]
5624020 Device for linearly conveying sheet like productsExpiredMay 24, 95Apr 29, 97[B65G]
5595282 Article treatment apparatusExpiredDec 28, 94Jan 21, 97[B65G]
5569016 Multiple conveyor stacking apparatusExpiredJun 01, 95Oct 29, 96[B65G]
5564334 Pin ovens and transfer devices thereforExpiredDec 27, 93Oct 15, 96[B41F]
5514193 Air humidifierExpiredAug 31, 93May 07, 96[B01D]
5497628 Air conditioning process and deviceExpiredJul 29, 94Mar 12, 96[F25D]
5495721 Process for cooling and conditioning airExpiredJul 29, 94Mar 05, 96[F25D]
5460361 Sheet stacker with brakeExpiredMay 05, 94Oct 24, 95[B65H]
5394734 Apparatus for determining humidity concentration in a humidified air systemExpiredAug 31, 93Mar 07, 95[G01N, B01F]
5279629 Air handling apparatus and method for textile machinesExpiredFeb 26, 93Jan 18, 94[B01D]
5272970 Pin ovens and transfer devices thereforExpiredOct 29, 91Dec 28, 93[B41F]

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