Minnesota Valley Engineering, Inc.

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Patent Activity in the Last 10 Years

Technologies

Intl Class Technology Matters Rank in Class
 
  
 
F17C VESSELS FOR CONTAINING OR STORING COMPRESSED, LIQUEFIED, OR SOLIDIFIED GASES; FIXED-CAPACITY GAS-HOLDERS; FILLING VESSELS WITH, OR DISCHARGING FROM VESSELS, COMPRESSED, LIQUEFIED, OR SOLIDIFIED GASES 1116
 
  
 
F25B REFRIGERATION MACHINES, PLANTS, OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS 761
 
  
 
B67D DISPENSING, DELIVERING, OR TRANSFERRING LIQUIDS, NOT OTHERWISE PROVIDED FOR 240
 
  
 
D06F LAUNDERING, DRYING, IRONING, PRESSING OR FOLDING TEXTILE ARTICLES 238
 
  
 
B08B CLEANING IN GENERAL; PREVENTION OF FOULING IN GENERAL 157
 
  
 
B65B MACHINES, APPARATUS OR DEVICES FOR, OR METHODS OF, PACKAGING ARTICLES OR MATERIALS; UNPACKING 163
 
  
 
F02M SUPPLYING COMBUSTION ENGINES IN GENERAL WITH COMBUSTIBLE MIXTURES OR CONSTITUENTS THEREOF 182
 
  
 
F04B POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS 161
 
  
 
F16L PIPES; JOINTS OR FITTINGS FOR PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; MEANS FOR THERMAL INSULATION IN GENERAL169

Top Patents (by citation)

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Recent Publications

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Recent Patents

Patent # Title Filing Date Issue Date Intl Class
6257282 Vacuum insulated pipeAug 04, 99Jul 10, 01[F16L]
6216302 Carbon dioxide dry cleaning systemMay 17, 99Apr 17, 01[D06F, B08B]
6044647 Transfer system for cryogenic liquidsAug 05, 97Apr 04, 00[F17C]
5954101 Mobile delivery and storage system for cryogenic fluidsDec 01, 97Sep 21, 99[F17C]
5937655 Pressure building device for a cryogenic tankDec 04, 97Aug 17, 99[F17C]
5924291 High pressure cryogenic fluid delivery systemOct 20, 97Jul 20, 99[F17C]
5904737 Carbon dioxide dry cleaning systemNov 26, 97May 18, 99[D06F]
RE35874 LNG delivery system for gas powered vehiclesJul 06, 94Aug 25, 98[F25B]
D392623 Smart card readerApr 30, 96Mar 24, 98[1402]
5616838 Metering apparatus for cryogenic liquidsFeb 26, 96Apr 01, 97[B67D]

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Expired/Abandoned/Withdrawn Patents

Patent # Title Status Filing Date Issue/Pub Date Intl Class
6349947 High pressure chamber door seal with leak detection systemExpiredJun 23, 99Feb 26, 02[F16J]
6230500 Cryogenic freezerExpiredSep 29, 99May 15, 01[F17C]
6087581 Regenerable thermal insulation and cooling elements insulated therebyExpiredJun 08, 98Jul 11, 00[H05K]
6029457 Wide mouth vacuum-insulated receptacleExpiredJul 01, 97Feb 29, 00[F17C]
5950437 System and method for charging insulated containers with cryogenic liquidsExpiredMar 11, 98Sep 14, 99[F17C]
5826780 Vacuum insulation panel and method for manufacturingExpiredMar 19, 96Oct 27, 98[B23K]
5787942 Float-type shut off device for a cryogenic storage tankExpiredJun 14, 96Aug 04, 98[F16K]
5695844 Vacuum insulation panel with improved braze seal-off and method for manufacturing sameExpiredJan 11, 96Dec 09, 97[B32D, B32B]
5664396 Vacuum insulation panelExpiredDec 29, 95Sep 09, 97[E04C]
5594177 Shaker tableExpiredMay 17, 95Jan 14, 97[G01M]
5572875 Relief valve construction to minimize ignition hazard from cryogenic storage tanks containing volatile liquidsExpiredApr 28, 94Nov 12, 96[F17C]
D372529 Portable oxygen dispenserExpiredJun 30, 95Aug 06, 96[]
D352738 Pinball game cabinetExpiredJul 23, 93Nov 22, 94[]
D344572 Sight gauge protectorExpiredAug 08, 91Feb 22, 94[]
D339844 Stacked storage tanksExpiredMay 17, 91Sep 28, 93[]
5234035 Bulk delivery system for carbonated beveragesExpiredJan 06, 92Aug 10, 93[B65B]
5228585 Variable capacity vehicle-mounted cryogenic storage vessels and method of making sameExpiredDec 11, 92Jul 20, 93[B60K]
5174354 Delivery system for carbonated beveragesExpiredMar 20, 91Dec 29, 92[B08B]
5011700 Syrup delivery system for carbonated beveragesExpiredAug 11, 89Apr 30, 91[B01F]
4956975 Shutoff valve for cryogenic liquid storage tankExpiredAug 17, 89Sep 18, 90[F17C]

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