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  • CPC
  • D21F1/14
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Parent Industries

DTEXTILES PAPER D21Papermaking D21FPAPER-MAKING MACHINES METHODS OF PRODUCING PAPER THEREON D21F1/00Wet end of machines for making continuous webs of paper

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D21F1/14welded
Industries

Patents Grantslast 30 patents

  • Information Patent Grant

    Antimicrobial composite filtering material and method for making th...
    • Patent number 11,351,491
    • Issue date Jun 7, 2022
    • KX Technologies LLC
    • Jinwen Wang
    • B01 - PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
  • Information Patent Grant

    Ultrasonic welding of thermoplastic fabrics
    • Patent number 4,090,897
    • Issue date May 23, 1978
    • The Sinclair Company
    • David G. Minick
    • B29 - WORKING OF PLASTICS WORKING OF SUBSTANCES IN A PLASTIC STATE, IN GENERAL
  • Information Patent Grant

    3477477
    • Patent number 3,477,477
    • Issue date Nov 11, 1969
    • B07 - SEPARATING SOLIDS FROM SOLIDS SORTING
  • Information Patent Grant

    3432126
    • Patent number 3,432,126
    • Issue date Mar 11, 1969
    • D21 - PAPER-MAKING PRODUCTION OF CELLULOSE
  • Information Patent Grant

    3392942
    • Patent number 3,392,942
    • Issue date Jul 16, 1968
    • B21 - MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL PUNCHING...
  • Information Patent Grant

    2893664
    • Patent number 2,893,664
    • Issue date Jul 7, 1959
    • B21 - MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL PUNCHING...
  • Information Patent Grant

    2496052
    • Patent number 2,496,052
    • Issue date Jan 31, 1950
    • D21 - PAPER-MAKING PRODUCTION OF CELLULOSE
  • Information Patent Grant

    2421601
    • Patent number 2,421,601
    • Issue date Jun 3, 1947
    • D03 - WEAVING
  • Information Patent Grant

    2397646
    • Patent number 2,397,646
    • Issue date Apr 2, 1946
    • B23 - MACHINE TOOLS METAL-WORKING NOT OTHERWISE PROVIDED FOR
  • Information Patent Grant

    2331814
    • Patent number 2,331,814
    • Issue date Oct 12, 1943
    • D21 - PAPER-MAKING PRODUCTION OF CELLULOSE
  • Information Patent Grant

    2224323
    • Patent number 2,224,323
    • Issue date Dec 10, 1940
    • D03 - WEAVING
  • Information Patent Grant

    2141706
    • Patent number 2,141,706
    • Issue date Dec 27, 1938
    • D21 - PAPER-MAKING PRODUCTION OF CELLULOSE
  • Information Patent Grant

    2137789
    • Patent number 2,137,789
    • Issue date Nov 22, 1938
    • D21 - PAPER-MAKING PRODUCTION OF CELLULOSE
  • Information Patent Grant

    2124373
    • Patent number 2,124,373
    • Issue date Jul 19, 1938
    • D21 - PAPER-MAKING PRODUCTION OF CELLULOSE
  • Information Patent Grant

    2116811
    • Patent number 2,116,811
    • Issue date May 10, 1938
    • D21 - PAPER-MAKING PRODUCTION OF CELLULOSE
  • Information Patent Grant

    2107719
    • Patent number 2,107,719
    • Issue date Feb 8, 1938
    • D21 - PAPER-MAKING PRODUCTION OF CELLULOSE
  • Information Patent Grant

    2102300
    • Patent number 2,102,300
    • Issue date Dec 14, 1937
    • D03 - WEAVING
  • Information Patent Grant

    2049575
    • Patent number 2,049,575
    • Issue date Aug 4, 1936
    • D21 - PAPER-MAKING PRODUCTION OF CELLULOSE
  • Information Patent Grant

    2030616
    • Patent number 2,030,616
    • Issue date Feb 11, 1936
    • D21 - PAPER-MAKING PRODUCTION OF CELLULOSE
  • Information Patent Grant

    2025491
    • Patent number 2,025,491
    • Issue date Dec 24, 1935
    • D21 - PAPER-MAKING PRODUCTION OF CELLULOSE
  • Information Patent Grant

    2020894
    • Patent number 2,020,894
    • Issue date Nov 12, 1935
    • D21 - PAPER-MAKING PRODUCTION OF CELLULOSE
  • Information Patent Grant

    1949593
    • Patent number 1,949,593
    • Issue date Mar 6, 1934
    • D21 - PAPER-MAKING PRODUCTION OF CELLULOSE
  • Information Patent Grant

    1930336
    • Patent number 1,930,336
    • Issue date Oct 10, 1933
    • D21 - PAPER-MAKING PRODUCTION OF CELLULOSE
  • Information Patent Grant

    1922940
    • Patent number 1,922,940
    • Issue date Aug 15, 1933
    • D21 - PAPER-MAKING PRODUCTION OF CELLULOSE
  • Information Patent Grant

    1909914
    • Patent number 1,909,914
    • Issue date May 16, 1933
    • D21 - PAPER-MAKING PRODUCTION OF CELLULOSE
  • Information Patent Grant

    1909915
    • Patent number 1,909,915
    • Issue date May 16, 1933
    • D21 - PAPER-MAKING PRODUCTION OF CELLULOSE
  • Information Patent Grant

    1895605
    • Patent number 1,895,605
    • Issue date Jan 31, 1933
    • D21 - PAPER-MAKING PRODUCTION OF CELLULOSE
  • Information Patent Grant

    1821455
    • Patent number 1,821,455
    • Issue date Sep 1, 1931
    • D21 - PAPER-MAKING PRODUCTION OF CELLULOSE
  • Information Patent Grant

    1821456
    • Patent number 1,821,456
    • Issue date Sep 1, 1931
    • D21 - PAPER-MAKING PRODUCTION OF CELLULOSE
  • Information Patent Grant

    1747273
    • Patent number 1,747,273
    • Issue date Feb 18, 1930
    • D21 - PAPER-MAKING PRODUCTION OF CELLULOSE

Patents Applicationslast 30 patents