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nitrogen oxides nitric acid nitrates, nitrites

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  • CPC
  • D21C3/16
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DTEXTILES PAPER D21Papermaking D21CPRODUCTION OF CELLULOSE BY REMOVING NON-CELLULOSE SUBSTANCES FROM CELLULOSE-CONTAINING MATERIALS REGENERATION OF PULPING LIQUORS APPARATUS THEREFOR D21C3/00Pulping cellulose-containing materials

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D21C3/16nitrogen oxides nitric acid nitrates, nitrites
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Patents Grantslast 30 patents

  • Information Patent Grant

    Fiber production with supercritical fluid phase from cotton straw
    • Patent number 11,479,913
    • Issue date Oct 25, 2022
    • Mustafa Soylu
    • D21 - PAPER-MAKING PRODUCTION OF CELLULOSE
  • Information Patent Grant

    Drying/transportation and releasing MFC
    • Patent number 10,947,670
    • Issue date Mar 16, 2021
    • Stora Enso Oyj
    • Jari Räsänen
    • D21 - PAPER-MAKING PRODUCTION OF CELLULOSE
  • Information Patent Grant

    Method for production of pulp
    • Patent number 8,268,124
    • Issue date Sep 18, 2012
    • Nihon Cellulose Co., Ltd.
    • Akira Ako
    • D21 - PAPER-MAKING PRODUCTION OF CELLULOSE
  • Information Patent Grant

    Pulping process employing nascent oxygen
    • Patent number 5,770,010
    • Issue date Jun 23, 1998
    • R-J Holding Company
    • James W. Jelks
    • D21 - PAPER-MAKING PRODUCTION OF CELLULOSE
  • Information Patent Grant

    Delignification of cellulosic raw materials using acetic acid, nitr...
    • Patent number 5,385,641
    • Issue date Jan 31, 1995
    • Acetocell GmbH & Co. KG
    • Alex Berg
    • D21 - PAPER-MAKING PRODUCTION OF CELLULOSE
  • Information Patent Grant

    Process for producing pulp
    • Patent number 4,165,253
    • Issue date Aug 21, 1979
    • Mikhail A. Ivanov
    • D21 - PAPER-MAKING PRODUCTION OF CELLULOSE
  • Information Patent Grant

    Pulping of lignocellulosic material by sequential treatment thereof...
    • Patent number 4,076,579
    • Issue date Feb 28, 1978
    • The Regents of the University of California
    • David L. Brink
    • D21 - PAPER-MAKING PRODUCTION OF CELLULOSE
  • Information Patent Grant

    3578553
    • Patent number 3,578,553
    • Issue date May 11, 1971
    • D21 - PAPER-MAKING PRODUCTION OF CELLULOSE
  • Information Patent Grant

    3461028
    • Patent number 3,461,028
    • Issue date Aug 12, 1969
    • D21 - PAPER-MAKING PRODUCTION OF CELLULOSE
  • Information Patent Grant

    3253977
    • Patent number 3,253,977
    • Issue date May 31, 1966
    • D21 - PAPER-MAKING PRODUCTION OF CELLULOSE
  • Information Patent Grant

    3222160
    • Patent number 3,222,160
    • Issue date Dec 7, 1965
    • C05 - FERTILISERS MANUFACTURE THEREOF
  • Information Patent Grant

    2733992
    • Patent number 2,733,992
    • Issue date Feb 7, 1956
    • D21 - PAPER-MAKING PRODUCTION OF CELLULOSE
  • Information Patent Grant

    2597430
    • Patent number 2,597,430
    • Issue date May 20, 1952
    • D21 - PAPER-MAKING PRODUCTION OF CELLULOSE
  • Information Patent Grant

    2571993
    • Patent number 2,571,993
    • Issue date Oct 23, 1951
    • D21 - PAPER-MAKING PRODUCTION OF CELLULOSE
  • Information Patent Grant

    2299132
    • Patent number 2,299,132
    • Issue date Oct 20, 1942
    • D21 - PAPER-MAKING PRODUCTION OF CELLULOSE
  • Information Patent Grant

    2214125
    • Patent number 2,214,125
    • Issue date Sep 10, 1940
    • D21 - PAPER-MAKING PRODUCTION OF CELLULOSE
  • Information Patent Grant

    2186893
    • Patent number 2,186,893
    • Issue date Jan 9, 1940
    • D21 - PAPER-MAKING PRODUCTION OF CELLULOSE
  • Information Patent Grant

    2110545
    • Patent number 2,110,545
    • Issue date Mar 8, 1938
    • D21 - PAPER-MAKING PRODUCTION OF CELLULOSE
  • Information Patent Grant

    2076817
    • Patent number 2,076,817
    • Issue date Apr 13, 1937
    • D21 - PAPER-MAKING PRODUCTION OF CELLULOSE
  • Information Patent Grant

    2074339
    • Patent number 2,074,339
    • Issue date Mar 23, 1937
    • D21 - PAPER-MAKING PRODUCTION OF CELLULOSE
  • Information Patent Grant

    1985609
    • Patent number 1,985,609
    • Issue date Dec 25, 1934
    • D21 - PAPER-MAKING PRODUCTION OF CELLULOSE
  • Information Patent Grant

    1840198
    • Patent number 1,840,198
    • Issue date Jan 5, 1932
    • D21 - PAPER-MAKING PRODUCTION OF CELLULOSE
  • Information Patent Grant

    1829852
    • Patent number 1,829,852
    • Issue date Nov 3, 1931
    • D21 - PAPER-MAKING PRODUCTION OF CELLULOSE
  • Information Patent Grant

    1813531
    • Patent number 1,813,531
    • Issue date Jul 7, 1931
    • D21 - PAPER-MAKING PRODUCTION OF CELLULOSE
  • Information Patent Grant

    1736080
    • Patent number 1,736,080
    • Issue date Nov 19, 1929
    • D21 - PAPER-MAKING PRODUCTION OF CELLULOSE
  • Information Patent Grant

    1717798
    • Patent number 1,717,798
    • Issue date Jun 18, 1929
    • D21 - PAPER-MAKING PRODUCTION OF CELLULOSE
  • Information Patent Grant

    1430115
    • Patent number 1,430,115
    • Issue date Sep 26, 1922
    • D21 - PAPER-MAKING PRODUCTION OF CELLULOSE
  • Information Patent Grant

    1053125
    • Patent number 1,053,125
    • Issue date Feb 11, 1913
    • D21 - PAPER-MAKING PRODUCTION OF CELLULOSE
  • Information Patent Grant

    845378
    • Patent number 845,378
    • Issue date Feb 26, 1907
    • D21 - PAPER-MAKING PRODUCTION OF CELLULOSE
  • Information Patent Grant

    496400
    • Patent number 496,400
    • Issue date May 2, 1893
    • D21 - PAPER-MAKING PRODUCTION OF CELLULOSE

Patents Applicationslast 30 patents