RITCHIE ENGINEERING COMPANY, INC.

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Patent Activity in the Last 10 Years

Technologies

Intl Class Technology Matters Rank in Class
 
  
 
F25B REFRIGERATION MACHINES, PLANTS, OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS 563
 
  
 
A63B APPARATUS FOR PHYSICAL TRAINING, GYMNASTICS, SWIMMING, CLIMBING, OR FENCING; BALL GAMES; TRAINING EQUIPMENT 166
 
  
 
B60H ARRANGEMENTS OR ADAPTATIONS OF HEATING, COOLING, VENTILATING, OR OTHER AIR-TREATING DEVICES SPECIALLY FOR PASSENGER OR GOODS SPACES OF VEHICLES142
 
  
 
B65B MACHINES, APPARATUS OR DEVICES FOR, OR METHODS OF, PACKAGING ARTICLES OR MATERIALS; UNPACKING 163
 
  
 
1004 OTHER MEASURING INSTRUMENTS, APPARATUS AND DEVICES135

Top Patents (by citation)

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Recent Publications

Publication # Title Filing Date Pub Date Intl Class
2017/0191,719 REFRIGERANT MANAGEMENT SYSTEM WITH OPERATIONAL EFFICIENCY IMPROVEMENT DEVICESJan 06, 16Jul 06, 17[B60H, F25B]

Recent Patents

Patent # Title Filing Date Issue Date Intl Class
D804975 Refrigerant maintenance systemNov 19, 15Dec 12, 17[1004]
7935029 Swimmer training apparatus having force controlJan 30, 09May 03, 11[A63B]
7428822 Vacuum sensorJul 10, 06Sep 30, 08[F25B]
7310965 Compressor head, internal discriminator, external discriminator, manifold design for refrigeration recovery apparatusOct 06, 05Dec 25, 07[F25B]
7159412 Compressor head, internal discriminator, external discriminator, manifold design for refrigeration recovery apparatusDec 15, 04Jan 09, 07[F25B]
7073346 Compressor head, internal discriminator, external discriminator, manifold design for refrigerant recovery apparatus and vacuum sensorAug 19, 04Jul 11, 06[F25B]
D449842 Refrigerant recovery system caseAug 08, 00Oct 30, 01[1507]
6164348 Method and arrangement for introducing fluorescent dye into a system to be leak testedMar 30, 99Dec 26, 00[B65B]

Expired/Abandoned/Withdrawn Patents

Patent # Title Status Filing Date Issue/Pub Date Intl Class
2007/0113,575 Valve manifold assemblyAbandonedDec 04, 06May 24, 07[F25B]
2006/0228,242 Vacuum pumpAbandonedApr 11, 05Oct 12, 06[F04C]
2006/0228,246 Vacuum pumpAbandonedApr 11, 05Oct 12, 06[F04C, F01C]
2005/0126,200 Single valve manifoldAbandonedDec 03, 04Jun 16, 05[F25B, A61M]
6832491 Compressor head, internal discriminator, external discriminator, manifold design for refrigerant recovery apparatusExpiredMar 21, 03Dec 21, 04[F25B]
6779350 Compressor head, internal discriminator, external discriminator, manifold design for refrigerant recovery apparatus and vacuum sensorExpiredApr 30, 03Aug 24, 04[F25B]
6762419 Ultraviolet light illumination and viewing system and method for fluorescent dye leak detectionExpiredNov 05, 97Jul 13, 04[G01J, G01N]
6630682 Combination UV inspection light and flashlightExpiredMar 13, 01Oct 07, 03[G01J]
6362488 Light source and method for carrying out leak detection inspectionsExpiredJan 26, 00Mar 26, 02[G01J, G01N]

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