Alfa-Laval Thermal, AB

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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 943
 
  
 
B01D SEPARATION 1133
 
  
 
B05D PROCESSES FOR APPLYING LIQUIDS OR OTHER FLUENT MATERIALS TO SURFACES, IN GENERAL 186
 
  
 
F28D HEAT-EXCHANGE APPARATUS, NOT PROVIDED FOR IN ANOTHER SUBCLASS, IN WHICH THE HEAT-EXCHANGE MEDIA DO NOT COME INTO DIRECT CONTACT 144

Top Patents (by citation)

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Recent Publications

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Recent Patents

Patent # Title Filing Date Issue Date Intl Class
5924484 Plate heat exchangerAug 06, 97Jul 20, 99[F28F]
5638899 Welded plate heat exchangerMar 28, 95Jun 17, 97[F28D]
5531269 Plate heat exchanger for liquids with different flowsNov 10, 94Jul 02, 96[F28F]
5509471 Distribution pattern of a plate heat exchangerOct 19, 94Apr 23, 96[F28F, B01D]
5472738 Method of providing heat transfer plates with a layer of a surface protecting materialJan 12, 95Dec 05, 95[B05D]
5307869 Permanently joined plate heat exchangerAug 05, 92May 03, 94[F28F]
5291945 Brazed plate heat exchangerOct 21, 92Mar 08, 94[F28F]
5226473 Plate heat exchangerOct 09, 91Jul 13, 93[F28F]
5226474 Plate evaporatorSep 16, 91Jul 13, 93[F28F]
5178207 Plate heat exchanger with leakage detectorSep 26, 91Jan 12, 93[F28F]

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Expired/Abandoned/Withdrawn Patents

Patent # Title Status Filing Date Issue/Pub Date Intl Class
5492171 Plate heat exchanger, a method of producing a plate heat exchanger and means for performing the methodExpiredJun 09, 93Feb 20, 96[F28F]
5083446 Carrying bar for a frame in a plate heat exchangerExpiredMar 22, 89Jan 28, 92[F28F]
5033543 Lining for plate heat exchangerExpiredAug 13, 86Jul 23, 91[F28F]
4987955 Permanently joined plate heat exchangerExpiredDec 28, 88Jan 29, 91[F28F]
4976313 Plate heat exchanger with a double-wall structureExpiredMar 22, 89Dec 11, 90[F28F]
4966227 Plate evaporatorExpiredDec 06, 89Oct 30, 90[F28F]
4915165 Plate heat exchangerExpiredDec 12, 88Apr 10, 90[F28F]
4911235 Plate heat exchangerExpiredApr 26, 89Mar 27, 90[F28F]
4909318 Method and apparatus for recovering heat from flue gases and for cleaning the sameExpiredAug 31, 88Mar 20, 90[F28F]
4874039 Plate heat exchangerExpiredJun 28, 88Oct 17, 89[F28F]
4872506 Gasket for plate heat exchangerExpiredMar 21, 88Oct 10, 89[F28F, F16J]
4871013 Device to prevent through-flow of a port in a plate heat exchangerExpiredAug 30, 88Oct 03, 89[F28F]
4848451 Plate heat exchangerExpiredApr 21, 88Jul 18, 89[F28F]
4813478 Plate heat exchangerExpiredSep 04, 87Mar 21, 89[F28F]
4804040 Plate heat exchangerExpiredJan 19, 88Feb 14, 89[F28F]
4800007 Corrosion protection for heat exchangersExpiredMay 08, 86Jan 24, 89[C23F]
4750555 Device in a frame plate for a plate heat exchangerExpiredAug 13, 86Jun 14, 88[F28F]
4699212 Plate heat exchangerExpiredApr 02, 86Oct 13, 87[F28F]
4635715 Gasket arrangement for a plate heat exchangerExpiredJan 24, 85Jan 13, 87[F28F]

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