TREA

by chemical treatment

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  • CPC
  • D21H5/1281
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Parent Industries

DTEXTILES PAPER D21Papermaking D21HPULP COMPOSITIONS PREPARATION THEREOF NOT COVERED BY SUBCLASSES D21C OR D21D IMPREGNATING OR COATING OF PAPER TREATMENT OF FINISHED PAPER NOT COVERED BY CLASS B31 OR SUBCLASS D21G PAPER NOT OTHERWISE PROVIDED FOR D21H5/00Special paper or cardboard not otherwise provided for

Current Industry

D21H5/1281by chemical treatment
Industries

Patents Grantslast 30 patents

  • Information Patent Grant

    Medical nonwoven fabric, and preparation method thereof
    • Patent number 10,428,458
    • Issue date Oct 1, 2019
    • Korea Institute of Industrial Technology
    • Jung Nam Im
    • D21 - PAPER-MAKING PRODUCTION OF CELLULOSE
  • Information Patent Grant

    Process for producing photographic paper
    • Patent number 4,435,248
    • Issue date Mar 6, 1984
    • Fuji Photo Film Co., Ltd.
    • Shun Arakawa
    • D21 - PAPER-MAKING PRODUCTION OF CELLULOSE
  • Information Patent Grant

    Method of making thermoplastic hardboard from acetylated mat
    • Patent number 4,418,101
    • Issue date Nov 29, 1983
    • United States Gypsum Company
    • Cynthia B. House
    • B27 - WORKING OR PRESERVING WOOD OR SIMILAR MATERIAL NAILING OR STAPLING MACH...
  • Information Patent Grant

    Thermoplastic hardboard from acetylated mat
    • Patent number 4,388,378
    • Issue date Jun 14, 1983
    • United States Gypsum Company
    • Cynthia B. House
    • B27 - WORKING OR PRESERVING WOOD OR SIMILAR MATERIAL NAILING OR STAPLING MACH...
  • Information Patent Grant

    3707692
    • Patent number 3,707,692
    • Issue date Dec 26, 1972
    • D21 - PAPER-MAKING PRODUCTION OF CELLULOSE
  • Information Patent Grant

    3549789
    • Patent number 3,549,789
    • Issue date Dec 22, 1970
    • D21 - PAPER-MAKING PRODUCTION OF CELLULOSE
  • Information Patent Grant

    3529925
    • Patent number 3,529,925
    • Issue date Sep 22, 1970
    • D06 - TREATMENT OF TEXTILES OR THE LIKE LAUNDERING FLEXIBLE MATERIALS NOT OTH...
  • Information Patent Grant

    3503700
    • Patent number 3,503,700
    • Issue date Mar 31, 1970
    • D21 - PAPER-MAKING PRODUCTION OF CELLULOSE
  • Information Patent Grant

    3467575
    • Patent number 3,467,575
    • Issue date Sep 16, 1969
    • D21 - PAPER-MAKING PRODUCTION OF CELLULOSE
  • Information Patent Grant

    3447956
    • Patent number 3,447,956
    • Issue date Jun 3, 1969
    • D06 - TREATMENT OF TEXTILES OR THE LIKE LAUNDERING FLEXIBLE MATERIALS NOT OTH...
  • Information Patent Grant

    3392084
    • Patent number 3,392,084
    • Issue date Jul 9, 1968
    • D21 - PAPER-MAKING PRODUCTION OF CELLULOSE
  • Information Patent Grant

    3216780
    • Patent number 3,216,780
    • Issue date Nov 9, 1965
    • D06 - TREATMENT OF TEXTILES OR THE LIKE LAUNDERING FLEXIBLE MATERIALS NOT OTH...
  • Information Patent Grant

    3216779
    • Patent number 3,216,779
    • Issue date Nov 9, 1965
    • D06 - TREATMENT OF TEXTILES OR THE LIKE LAUNDERING FLEXIBLE MATERIALS NOT OTH...
  • Information Patent Grant

    2971877
    • Patent number 2,971,877
    • Issue date Feb 14, 1961
    • D21 - PAPER-MAKING PRODUCTION OF CELLULOSE
  • Information Patent Grant

    2905585
    • Patent number 2,905,585
    • Issue date Sep 22, 1959
    • D21 - PAPER-MAKING PRODUCTION OF CELLULOSE
  • Information Patent Grant

    2869973
    • Patent number 2,869,973
    • Issue date Jan 20, 1959
    • D21 - PAPER-MAKING PRODUCTION OF CELLULOSE
  • Information Patent Grant

    2647816
    • Patent number 2,647,816
    • Issue date Aug 4, 1953
    • D04 - BRAIDING LACE-MAKING KNITTING TRIMMINGS NON-WOVEN FABRICS
  • Information Patent Grant

    2389254
    • Patent number 2,389,254
    • Issue date Nov 20, 1945
    • D21 - PAPER-MAKING PRODUCTION OF CELLULOSE
  • Information Patent Grant

    2018244
    • Patent number 2,018,244
    • Issue date Oct 22, 1935
    • D21 - PAPER-MAKING PRODUCTION OF CELLULOSE
  • Information Patent Grant

    1544744
    • Patent number 1,544,744
    • Issue date Jul 7, 1925
    • D21 - PAPER-MAKING PRODUCTION OF CELLULOSE
  • Information Patent Grant

    1379156
    • Patent number 1,379,156
    • Issue date May 24, 1921
    • D21 - PAPER-MAKING PRODUCTION OF CELLULOSE
  • Information Patent Grant

    1379155
    • Patent number 1,379,155
    • Issue date May 24, 1921
    • D21 - PAPER-MAKING PRODUCTION OF CELLULOSE