HEATCRAFT INC.

Patent Owner

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Patent Activity in the Last 10 Years

Technologies

Intl Class Technology Matters Rank in Class
 
  
 
F28F DETAILS OF HEAT-EXCHANGE OR HEAT-TRANSFER APPARATUS, OF GENERAL APPLICATION 844
 
  
 
F28D HEAT-EXCHANGE APPARATUS, NOT PROVIDED FOR IN ANOTHER SUBCLASS, IN WHICH THE HEAT-EXCHANGE MEDIA DO NOT COME INTO DIRECT CONTACT 342
 
  
 
F24F AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING 243
 
  
 
F25B REFRIGERATION MACHINES, PLANTS, OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS 266
 
  
 
F25D REFRIGERATORS; COLD ROOMS; ICE-BOXES; COOLING OR FREEZING APPARATUS NOT COVERED BY ANY OTHER SUBCLASS 244
 
  
 
F28B STEAM OR VAPOUR CONDENSERS 17

Top Patents (by citation)

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Recent Publications

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Recent Patents

Patent # Title Filing Date Issue Date Intl Class
6604574 Two-piece header and heat exchanger incorporating sameSep 04, 02Aug 12, 03[F28F]
6550257 Angled UV fixture in a-coilDec 21, 01Apr 22, 03[F25D, F24F]
6390180 Heat exchanger isolation deviceDec 10, 99May 21, 02[F28F]
6321548 Apparatus for automatically closing a cooling system expansion valve in response to power lossMar 31, 00Nov 27, 01[F25B]
6138464 Defrost control for space cooling systemOct 25, 99Oct 31, 00[F25D]
6016864 Heat exchanger with relatively flat fluid conduitsJun 10, 98Jan 25, 00[F28F]
5970726 Defrost control for space cooling systemApr 08, 97Oct 26, 99[F25B]
5927393 Heat exchanger fin with enhanced corrugationsDec 11, 97Jul 27, 99[F28D]
5826646 Flat-tubed heat exchangerJul 02, 97Oct 27, 98[F28B, F28D, F28F]
5771964 Heat exchanger with relatively flat fluid conduitsApr 19, 96Jun 30, 98[F28F]

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Expired/Abandoned/Withdrawn Patents

Patent # Title Status Filing Date Issue/Pub Date Intl Class
5644841 Method for manufacturing a heat transfer coilExpiredJun 05, 96Jul 08, 97[B23P]
5069053 Method and apparatus for cutting corrugated websExpiredJun 05, 89Dec 03, 91[B21D]
5056327 Hot gas defrost refrigeration systemExpiredFeb 26, 90Oct 15, 91[F25B, F25D]
5050400 Simplified hot gas defrost refrigeration systemExpiredFeb 26, 90Sep 24, 91[F25D]
5020587 Fully floating tube bundleExpiredNov 01, 90Jun 04, 91[F28F]
5014422 Method and apparatus for forming core assembliesExpiredJul 02, 90May 14, 91[B21D]
5007270 Web handling apparatus for metal ribbon stockExpiredNov 07, 89Apr 16, 91[B21D]
4741192 Rolling metal ribbon stock into convoluted fin strip for use in heat exchangersExpiredJul 14, 86May 03, 88[B21C, B21D]
4187690 Ice-maker heat pumpExpiredAug 16, 78Feb 12, 80[F25C]

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