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CPC
D21H5/002
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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
D21H5/002
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Patents Grants
last 30 patents
Information
Patent Grant
Bio-based polyelectrolyte complex compositions comprising non-water...
Patent number
11,525,211
Issue date
Dec 13, 2022
OrganoClick AB
Juhanes Aydin
D21 - PAPER-MAKING PRODUCTION OF CELLULOSE
Information
Patent Grant
Coating process
Patent number
4,741,918
Issue date
May 3, 1988
Tribohesion Limited
Erno Nagy de Nagybaczon
C23 - COATING METALLIC MATERIAL COATING MATERIAL WITH METALLIC MATERIAL CHEMI...
Information
Patent Grant
Fibrous web saturator
Patent number
4,590,099
Issue date
May 20, 1986
R & R Research & Development, Inc.
Richard A. Reith
D21 - PAPER-MAKING PRODUCTION OF CELLULOSE
Information
Patent Grant
Method utilizing ultrasonically induced cavitation to impregnate po...
Patent number
4,552,781
Issue date
Nov 12, 1985
Westinghouse Electric Corp.
Daniel L. Cannady
D21 - PAPER-MAKING PRODUCTION OF CELLULOSE
Information
Patent Grant
Pressure saturator
Patent number
4,411,216
Issue date
Oct 25, 1983
Miply Equipment Inc.
Howard K. Menser
D06 - TREATMENT OF TEXTILES OR THE LIKE LAUNDERING FLEXIBLE MATERIALS NOT OTH...
Information
Patent Grant
Apparatus for high speed size application
Patent number
4,407,224
Issue date
Oct 4, 1983
Beloit Corporation
Robert J. Alheid
D21 - PAPER-MAKING PRODUCTION OF CELLULOSE
Information
Patent Grant
Size press with coating pool suppressing arrangement
Patent number
4,391,217
Issue date
Jul 5, 1983
Valmet Oy
Erkki Koski
D21 - PAPER-MAKING PRODUCTION OF CELLULOSE
Information
Patent Grant
Method and apparatus for coating both sides of a moving web
Patent number
4,358,481
Issue date
Nov 9, 1982
Inventing S.A.
Hans I. Wallsten
D21 - PAPER-MAKING PRODUCTION OF CELLULOSE
Information
Patent Grant
Method for high speed size application
Patent number
4,358,484
Issue date
Nov 9, 1982
Beloit Corporation
Robert J. Alheid
D21 - PAPER-MAKING PRODUCTION OF CELLULOSE
Information
Patent Grant
High speed size press
Patent number
4,340,623
Issue date
Jul 20, 1982
Beloit Corporation
Edgar J. Justus
D21 - PAPER-MAKING PRODUCTION OF CELLULOSE
Information
Patent Grant
Combined size press and breaker stack and method
Patent number
4,325,784
Issue date
Apr 20, 1982
Beloit Corporation
George L. Dreher
D21 - PAPER-MAKING PRODUCTION OF CELLULOSE
Information
Patent Grant
Nozzle structure for moistening or impregnating a web
Patent number
4,321,760
Issue date
Mar 30, 1982
Bachofen & Meier
Paul Meier
D21 - PAPER-MAKING PRODUCTION OF CELLULOSE
Information
Patent Grant
Process for applying a coating to both sides of a running paper web
Patent number
4,288,473
Issue date
Sep 8, 1981
Inventing S.A.
Hans I. Wallsten
D21 - PAPER-MAKING PRODUCTION OF CELLULOSE
Information
Patent Grant
Method of impregnating and drying materials and installations for c...
Patent number
4,054,692
Issue date
Oct 18, 1977
Mecalix S.A.
Jean Monmarson
D21 - PAPER-MAKING PRODUCTION OF CELLULOSE
Information
Patent Grant
Process for discontinuous coating of a web by periodic deflection t...
Patent number
4,020,194
Issue date
Apr 26, 1977
Acumeter Laboratories, Inc.
Donald B. McIntyre
D21 - PAPER-MAKING PRODUCTION OF CELLULOSE
Information
Patent Grant
3926148
Patent number
3,926,148
Issue date
Dec 16, 1975
D21 - PAPER-MAKING PRODUCTION OF CELLULOSE
Information
Patent Grant
3802383
Patent number
3,802,383
Issue date
Apr 9, 1974
D21 - PAPER-MAKING PRODUCTION OF CELLULOSE
Information
Patent Grant
3305392
Patent number
3,305,392
Issue date
Feb 21, 1967
D21 - PAPER-MAKING PRODUCTION OF CELLULOSE
Information
Patent Grant
3191312
Patent number
3,191,312
Issue date
Jun 29, 1965
D21 - PAPER-MAKING PRODUCTION OF CELLULOSE
Information
Patent Grant
3158507
Patent number
3,158,507
Issue date
Nov 24, 1964
D06 - TREATMENT OF TEXTILES OR THE LIKE LAUNDERING FLEXIBLE MATERIALS NOT OTH...
Information
Patent Grant
3067718
Patent number
3,067,718
Issue date
Dec 11, 1962
B65 - CONVEYING PACKING STORING HANDLING THIN OR FILAMENTARY MATERIAL
Information
Patent Grant
2875094
Patent number
2,875,094
Issue date
Feb 24, 1959
B29 - WORKING OF PLASTICS WORKING OF SUBSTANCES IN A PLASTIC STATE, IN GENERAL
Information
Patent Grant
2836221
Patent number
2,836,221
Issue date
May 27, 1958
D06 - TREATMENT OF TEXTILES OR THE LIKE LAUNDERING FLEXIBLE MATERIALS NOT OTH...
Information
Patent Grant
2764494
Patent number
2,764,494
Issue date
Sep 25, 1956
D21 - PAPER-MAKING PRODUCTION OF CELLULOSE
Information
Patent Grant
2676119
Patent number
2,676,119
Issue date
Apr 20, 1954
D21 - PAPER-MAKING PRODUCTION OF CELLULOSE
Information
Patent Grant
2357824
Patent number
2,357,824
Issue date
Sep 12, 1944
D21 - PAPER-MAKING PRODUCTION OF CELLULOSE
Information
Patent Grant
2342643
Patent number
2,342,643
Issue date
Feb 29, 1944
D06 - TREATMENT OF TEXTILES OR THE LIKE LAUNDERING FLEXIBLE MATERIALS NOT OTH...
Information
Patent Grant
2207925
Patent number
2,207,925
Issue date
Jul 16, 1940
D21 - PAPER-MAKING PRODUCTION OF CELLULOSE
Information
Patent Grant
1827640
Patent number
1,827,640
Issue date
Oct 13, 1931
D21 - PAPER-MAKING PRODUCTION OF CELLULOSE
Information
Patent Grant
1747104
Patent number
1,747,104
Issue date
Feb 11, 1930
D21 - PAPER-MAKING PRODUCTION OF CELLULOSE
Patents Applications
last 30 patents