DENSO AIRS CORPORATION

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Patent Activity in the Last 10 Years

Technologies

Intl Class Technology Matters Rank in Class
 
  
 
F16L PIPES; JOINTS OR FITTINGS FOR PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; MEANS FOR THERMAL INSULATION IN GENERAL367
 
  
 
B23P OTHER WORKING OF METAL; COMBINED OPERATIONS; UNIVERSAL MACHINE TOOLS 254
 
  
 
F28D HEAT-EXCHANGE APPARATUS, NOT PROVIDED FOR IN ANOTHER SUBCLASS, IN WHICH THE HEAT-EXCHANGE MEDIA DO NOT COME INTO DIRECT CONTACT 243
 
  
 
F28F DETAILS OF HEAT-EXCHANGE OR HEAT-TRANSFER APPARATUS, OF GENERAL APPLICATION 250
 
  
 
F25B REFRIGERATION MACHINES, PLANTS, OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS 167

Top Patents (by citation)

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Recent Publications

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Recent Patents

Patent # Title Filing Date Issue Date Intl Class
9669499 Double-wall pipe, method of manufacturing the same and refrigerant cycle device provided with the sameNov 30, 10Jun 06, 17[F16L, B23P, F28D, F25B, F28F]
7886420 Method of manufacturing double pipeDec 28, 06Feb 15, 11[F16L, B23P]
7887099 Compound tube and method of producing the sameDec 05, 06Feb 15, 11[F16L]
7866378 Double-wall pipe, method of manufacturing the same and refrigerant cycle device provided with the sameNov 08, 05Jan 11, 11[F28D, F28F]
7837234 Pipe joint unit and method of manufacturing the sameDec 26, 07Nov 23, 10[F16L]

Expired/Abandoned/Withdrawn Patents

Patent # Title Status Filing Date Issue/Pub Date Intl Class
2007/0252,388 Pipe jointAbandonedMar 09, 07Nov 01, 07[F16L]
2006/0112,556 Method and apparatus of manufacturing grooved pipe, and structure thereofAbandonedNov 08, 05Jun 01, 06[B23P]
2006/0096,314 Double-wall pipe and refrigerant cycle device using the sameAbandonedNov 08, 05May 11, 06[F16L, F25B]
2003/0080,564 Pipe joint assembly and method for assembling the sameAbandonedOct 25, 02May 01, 03[F16L]

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