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D21H5/1281
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Parent Industries
D
TEXTILES PAPER
D21
Papermaking
D21H
PULP 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
D21H5/00
Special paper or cardboard not otherwise provided for
Current Industry
D21H5/1281
by chemical treatment
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Patents Grants
last 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
Patents Applications
last 30 patents