HOLLAND HITCH COMPANY, A MICHIGAN LIMITED LIABILITY

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Patent Activity in the Last 10 Years

Technologies

Intl Class Technology Matters Rank in Class
 
  
 
B60G VEHICLE SUSPENSION ARRANGEMENTS 249
 
  
 
F01B MACHINES OR ENGINES, IN GENERAL OR OF POSITIVE-DISPLACEMENT TYPE, e.g. STEAM ENGINES 225
 
  
 
F15B SYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL; FLUID-PRESSURE ACTUATORS, e.g. SERVOMOTORS; DETAILS OF FLUID-PRESSURE SYSTEMS, NOT OTHERWISE PROVIDED FOR 243

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Recent Publications

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Recent Patents

Patent # Title Filing Date Issue Date Intl Class
7028996 Vehicle suspension system and height control valve thereforAug 07, 02Apr 18, 06[B60G]
6729224 Service brake actuator having a unitary pushrod assembly with a bushing thereforNov 30, 01May 04, 04[F01B]
6626083 Spring brake actuator with hot set springApr 03, 01Sep 30, 03[F15B]
6588314 Sealed brake actuatorOct 11, 01Jul 08, 03[F15B]
6412790 Vehicle suspension and rotary height control valve for sameFeb 28, 01Jul 02, 02[B60G]
6357337 Spring brake actuator with sealed chamber and method for sealingApr 14, 00Mar 19, 02[F01B]

Expired/Abandoned/Withdrawn Patents

Patent # Title Status Filing Date Issue/Pub Date Intl Class
6883416 Swash plate containment assemblyExpiredJan 28, 03Apr 26, 05[F01B]

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