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CPC
D21H5/129
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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
D21H5/129
by thermal treatment
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Patents Grants
last 30 patents
Information
Patent Grant
Heat treatment of paper products having starch additives
Patent number
4,919,758
Issue date
Apr 24, 1990
International Paper Company
Dinkar G. Wagle
D21 - PAPER-MAKING PRODUCTION OF CELLULOSE
Information
Patent Grant
Envelope type separator for storage battery and manufacturing proce...
Patent number
4,818,340
Issue date
Apr 4, 1989
Nihon Muki Kabushiki Kaisha
Takao Hasegawa
D21 - PAPER-MAKING PRODUCTION OF CELLULOSE
Information
Patent Grant
Heat treatment of paper products
Patent number
4,818,342
Issue date
Apr 4, 1989
International Paper Company
Dinkar G. Wagle
D21 - PAPER-MAKING PRODUCTION OF CELLULOSE
Information
Patent Grant
Molding of paperboard containers
Patent number
4,491,502
Issue date
Jan 1, 1985
James River-Dixie/Northern, Inc.
Leslie L. Martin
A47 - FURNITURE DOMESTIC ARTICLES OR APPLIANCES COFFEE MILLS SPICE MILLS SUCT...
Information
Patent Grant
Non-woven fabric of hot-melt adhesive composite fibers
Patent number
4,477,516
Issue date
Oct 16, 1984
Chisso Corporation
Taizo Sugihara
D04 - BRAIDING LACE-MAKING KNITTING TRIMMINGS NON-WOVEN FABRICS
Information
Patent Grant
Method of manufacturing an inorganic fiber filter tube and product
Patent number
4,376,675
Issue date
Mar 15, 1983
Whatman Reeve Angel Limited
Kenneth A. Perrotta
D21 - PAPER-MAKING PRODUCTION OF CELLULOSE
Information
Patent Grant
Process for manufacturing heat-sealed proofed paper or card on a Fo...
Patent number
4,274,915
Issue date
Jun 23, 1981
Giovanni Munari
D21 - PAPER-MAKING PRODUCTION OF CELLULOSE
Information
Patent Grant
Photographic support
Patent number
4,238,280
Issue date
Dec 9, 1980
The Wiggins Teape Group Limited
Roger E. Wallis
D21 - PAPER-MAKING PRODUCTION OF CELLULOSE
Information
Patent Grant
Producing embossed wall- or ceiling-covering of cellulosic pulp and...
Patent number
4,162,180
Issue date
Jul 24, 1979
Imperial Chemical Industries Limited
Arthur Burton
D21 - PAPER-MAKING PRODUCTION OF CELLULOSE
Information
Patent Grant
3431334
Patent number
3,431,334
Issue date
Mar 4, 1969
D04 - BRAIDING LACE-MAKING KNITTING TRIMMINGS NON-WOVEN FABRICS
Information
Patent Grant
3401078
Patent number
3,401,078
Issue date
Sep 10, 1968
D21 - PAPER-MAKING PRODUCTION OF CELLULOSE
Information
Patent Grant
3227608
Patent number
3,227,608
Issue date
Jan 4, 1966
D21 - PAPER-MAKING PRODUCTION OF CELLULOSE
Information
Patent Grant
3200033
Patent number
3,200,033
Issue date
Aug 10, 1965
D21 - PAPER-MAKING PRODUCTION OF CELLULOSE
Information
Patent Grant
3101294
Patent number
3,101,294
Issue date
Aug 20, 1963
D21 - PAPER-MAKING PRODUCTION OF CELLULOSE
Patents Applications
last 30 patents