using lignin derivatives

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  • CPC
  • C14C3/24
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Patents Grantslast 30 patents

  • Information Patent Grant

    Chrome-free tanning process of ecological leather

    • Patent number 12,129,524
    • Issue date Oct 29, 2024
    • Sichuan University
    • Yanan Wang
    • C14 - SKINS HIDES PELTS LEATHER
  • Information Patent Grant

    3447889

    • Patent number 3,447,889
    • Issue date Jun 3, 1969
    • C14 - SKINS HIDES PELTS LEATHER
  • Information Patent Grant

    2995415

    • Patent number 2,995,415
    • Issue date Aug 8, 1961
    • C14 - SKINS HIDES PELTS LEATHER
  • Information Patent Grant

    2952507

    • Patent number 2,952,507
    • Issue date Sep 13, 1960
    • C14 - SKINS HIDES PELTS LEATHER
  • Information Patent Grant

    2857346

    • Patent number 2,857,346
    • Issue date Oct 21, 1958
    • C14 - SKINS HIDES PELTS LEATHER
  • Information Patent Grant

    2789974

    • Patent number 2,789,974
    • Issue date Apr 23, 1957
    • C14 - SKINS HIDES PELTS LEATHER
  • Information Patent Grant

    2772140

    • Patent number 2,772,140
    • Issue date Nov 27, 1956
    • C14 - SKINS HIDES PELTS LEATHER
  • Information Patent Grant

    2758990

    • Patent number 2,758,990
    • Issue date Aug 14, 1956
    • C14 - SKINS HIDES PELTS LEATHER
  • Information Patent Grant

    2729534

    • Patent number 2,729,534
    • Issue date Jan 3, 1956
    • C14 - SKINS HIDES PELTS LEATHER
  • Information Patent Grant

    2709696

    • Patent number 2,709,696
    • Issue date May 31, 1955
    • C14 - SKINS HIDES PELTS LEATHER
  • Information Patent Grant

    2676170

    • Patent number 2,676,170
    • Issue date Apr 20, 1954
    • C14 - SKINS HIDES PELTS LEATHER
  • Information Patent Grant

    2639968

    • Patent number 2,639,968
    • Issue date May 26, 1953
    • C14 - SKINS HIDES PELTS LEATHER
  • Information Patent Grant

    2640052

    • Patent number 2,640,052
    • Issue date May 26, 1953
    • C14 - SKINS HIDES PELTS LEATHER
  • Information Patent Grant

    2600606

    • Patent number 2,600,606
    • Issue date Jun 17, 1952
    • C14 - SKINS HIDES PELTS LEATHER
  • Information Patent Grant

    2597809

    • Patent number 2,597,809
    • Issue date May 20, 1952
    • C14 - SKINS HIDES PELTS LEATHER
  • Information Patent Grant

    2559305

    • Patent number 2,559,305
    • Issue date Jul 3, 1951
    • C14 - SKINS HIDES PELTS LEATHER
  • Information Patent Grant

    2437044

    • Patent number 2,437,044
    • Issue date Mar 2, 1948
    • C14 - SKINS HIDES PELTS LEATHER
  • Information Patent Grant

    2418981

    • Patent number 2,418,981
    • Issue date Apr 15, 1947
    • C14 - SKINS HIDES PELTS LEATHER
  • Information Patent Grant

    2387619

    • Patent number 2,387,619
    • Issue date Oct 23, 1945
    • C14 - SKINS HIDES PELTS LEATHER
  • Information Patent Grant

    2365599

    • Patent number 2,365,599
    • Issue date Dec 19, 1944
    • C14 - SKINS HIDES PELTS LEATHER
  • Information Patent Grant

    2317832

    • Patent number 2,317,832
    • Issue date Apr 27, 1943
    • C14 - SKINS HIDES PELTS LEATHER
  • Information Patent Grant

    2244410

    • Patent number 2,244,410
    • Issue date Jun 3, 1941
    • C14 - SKINS HIDES PELTS LEATHER
  • Information Patent Grant

    2241306

    • Patent number 2,241,306
    • Issue date May 6, 1941
    • C14 - SKINS HIDES PELTS LEATHER
  • Information Patent Grant

    2184622

    • Patent number 2,184,622
    • Issue date Dec 26, 1939
    • C14 - SKINS HIDES PELTS LEATHER
  • Information Patent Grant

    2130550

    • Patent number 2,130,550
    • Issue date Sep 20, 1938
    • C14 - SKINS HIDES PELTS LEATHER
  • Information Patent Grant

    2101511

    • Patent number 2,101,511
    • Issue date Dec 7, 1937
    • C14 - SKINS HIDES PELTS LEATHER
  • Information Patent Grant

    2099717

    • Patent number 2,099,717
    • Issue date Nov 23, 1937
    • C07 - ORGANIC CHEMISTRY
  • Information Patent Grant

    2092622

    • Patent number 2,092,622
    • Issue date Sep 7, 1937
    • C14 - SKINS HIDES PELTS LEATHER
  • Information Patent Grant

    1958624

    • Patent number 1,958,624
    • Issue date May 15, 1934
    • C14 - SKINS HIDES PELTS LEATHER
  • Information Patent Grant

    1952643

    • Patent number 1,952,643
    • Issue date Mar 27, 1934
    • C14 - SKINS HIDES PELTS LEATHER

Patents Applicationslast 30 patents