Core formed by stack tubular members with abutting edges

Patents Grantslast 30 patents

  • Information Patent Grant

    Heat exchanger and method of making heat exchangers

    • Patent number 4,867,233
    • Issue date Sep 19, 1989
    • Akzo N.V.
    • Hermann Gemeinhardt
    • B29 - WORKING OF PLASTICS WORKING OF SUBSTANCES IN A PLASTIC STATE, IN GENERAL
  • Information Patent Grant

    3315740

    • Patent number 3,315,740
    • Issue date Apr 25, 1967
    • B29 - WORKING OF PLASTICS WORKING OF SUBSTANCES IN A PLASTIC STATE, IN GENERAL
  • Information Patent Grant

    3016230

    • Patent number 3,016,230
    • Issue date Jan 9, 1962
    • F28 - HEAT EXCHANGE IN GENERAL
  • Information Patent Grant

    2793835

    • Patent number 2,793,835
    • Issue date May 28, 1957
    • B21 - MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL PUNCHING...
  • Information Patent Grant

    2147719

    • Patent number 2,147,719
    • Issue date Feb 21, 1939
    • F28 - HEAT EXCHANGE IN GENERAL
  • Information Patent Grant

    2001186

    • Patent number 2,001,186
    • Issue date May 14, 1935
    • F28 - HEAT EXCHANGE IN GENERAL
  • Information Patent Grant

    1993095

    • Patent number 1,993,095
    • Issue date Mar 5, 1935
    • F28 - HEAT EXCHANGE IN GENERAL
  • Information Patent Grant

    1745978

    • Patent number 1,745,978
    • Issue date Feb 4, 1930
    • F28 - HEAT EXCHANGE IN GENERAL
  • Information Patent Grant

    1743785

    • Patent number 1,743,785
    • Issue date Jan 14, 1930
    • F28 - HEAT EXCHANGE IN GENERAL
  • Information Patent Grant

    1672708

    • Patent number 1,672,708
    • Issue date Jun 5, 1928
    • F28 - HEAT EXCHANGE IN GENERAL
  • Information Patent Grant

    1608736

    • Patent number 1,608,736
    • Issue date Nov 30, 1926
    • F01 - MACHINES OR ENGINES IN GENERAL ENGINE PLANTS IN GENERAL STEAM ENGINES
  • Information Patent Grant

    1540390

    • Patent number 1,540,390
    • Issue date Jun 2, 1925
    • B21 - MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL PUNCHING...
  • Information Patent Grant

    1511275

    • Patent number 1,511,275
    • Issue date Oct 14, 1924
    • F28 - HEAT EXCHANGE IN GENERAL
  • Information Patent Grant

    1410548

    • Patent number 1,410,548
    • Issue date Mar 28, 1922
    • F28 - HEAT EXCHANGE IN GENERAL
  • Information Patent Grant

    1400945

    • Patent number 1,400,945
    • Issue date Dec 20, 1921
    • F28 - HEAT EXCHANGE IN GENERAL
  • Information Patent Grant

    1394857

    • Patent number 1,394,857
    • Issue date Oct 25, 1921
    • F28 - HEAT EXCHANGE IN GENERAL
  • Information Patent Grant

    1393042

    • Patent number 1,393,042
    • Issue date Oct 11, 1921
    • F28 - HEAT EXCHANGE IN GENERAL
  • Information Patent Grant

    1391871

    • Patent number 1,391,871
    • Issue date Sep 27, 1921
    • F28 - HEAT EXCHANGE IN GENERAL
  • Information Patent Grant

    1368220

    • Patent number 1,368,220
    • Issue date Feb 8, 1921
    • F28 - HEAT EXCHANGE IN GENERAL
  • Information Patent Grant

    1358796

    • Patent number 1,358,796
    • Issue date Nov 16, 1920
    • F28 - HEAT EXCHANGE IN GENERAL
  • Information Patent Grant

    1298192

    • Patent number 1,298,192
    • Issue date Mar 25, 1919
    • F28 - HEAT EXCHANGE IN GENERAL
  • Information Patent Grant

    1297454

    • Patent number 1,297,454
    • Issue date Mar 18, 1919
    • F28 - HEAT EXCHANGE IN GENERAL
  • Information Patent Grant

    1277526

    • Patent number 1,277,526
    • Issue date Sep 3, 1918
    • F28 - HEAT EXCHANGE IN GENERAL
  • Information Patent Grant

    1109941

    • Patent number 1,109,941
    • Issue date Sep 8, 1914
    • F28 - HEAT EXCHANGE IN GENERAL
  • Information Patent Grant

    1021334

    • Patent number 1,021,334
    • Issue date Mar 26, 1912
    • F28 - HEAT EXCHANGE IN GENERAL
  • Information Patent Grant

    943689

    • Patent number 943,689
    • Issue date Dec 21, 1909
    • F28 - HEAT EXCHANGE IN GENERAL
  • Information Patent Grant

    891302

    • Patent number 891,302
    • Issue date Jun 23, 1908
    • F28 - HEAT EXCHANGE IN GENERAL
  • Information Patent Grant

    881392

    • Patent number 881,392
    • Issue date Mar 10, 1908
    • F28 - HEAT EXCHANGE IN GENERAL
  • Information Patent Grant

    854650

    • Patent number 854,650
    • Issue date May 21, 1907
    • F28 - HEAT EXCHANGE IN GENERAL
  • Information Patent Grant

    16130

    • Patent number 16,130
    • Issue date Nov 25, 1856
    • F28 - HEAT EXCHANGE IN GENERAL