HARTMANN & LAMMLE GMBH & CO. KG

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Patent Activity in the Last 10 Years

Technologies

Intl Class Technology Matters Rank in Class
 
  
 
F15B SYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL; FLUID-PRESSURE ACTUATORS, e.g. SERVOMOTORS; DETAILS OF FLUID-PRESSURE SYSTEMS, NOT OTHERWISE PROVIDED FOR 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
5503174 Process for actuating a slide valve designed as a magnetic valve, magnetic valve for carrying out said processOct 28, 93Apr 02, 96[F15B]

Expired/Abandoned/Withdrawn Patents

Patent # Title Status Filing Date Issue/Pub Date Intl Class
6813987 Electrohydraulic monitoring device for a dual effect hydraulic cylinderExpiredSep 26, 02Nov 09, 04[F01B]
6677054 Device for integrally joining a metal block that can be made up of platesExpiredDec 24, 01Jan 13, 04[B23K, B32B]
6305418 Hydraulic valveExpiredMar 19, 99Oct 23, 01[F15B]
6039077 Electrohydraulic control valve arrangementExpiredMar 30, 98Mar 21, 00[F15B]
5829336 Hydraulic drive unitExpiredMay 09, 96Nov 03, 98[F15B]
5042362 Hydraulic control system for the drive control of a double-acting hydraulic cylinderExpiredApr 14, 89Aug 27, 91[F15B]
4958548 Hydraulic drive mechanismExpiredJun 16, 89Sep 25, 90[F15B]
4949623 Hydraulic drive mechanismExpiredMar 03, 89Aug 21, 90[F01L]
4901627 Hydraulic idling-regulating valveExpiredMay 04, 88Feb 20, 90[F15P]
4873912 Hydraulic driving arrangementExpiredJun 09, 83Oct 17, 89[F15B]
4837912 Hydraulic driving arrangement for positioning workpieces in correct relationship to tool heads of a multi-station machine toolExpiredFeb 25, 87Jun 13, 89[B23Q]
4541241 Hydraulic driving arrangement for reciprocable masses or the likeExpiredFeb 17, 83Sep 17, 85[F15B]
4398657 Feeding device, in particular for the cycled feeding of rod or tape like material in presses, cutters, or the likeExpiredFeb 23, 81Aug 16, 83[B65H]
4369693 Electrohydraulic servomechanismExpiredMar 05, 80Jan 25, 83[F15B]

Top Inventors for This Owner

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