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D21H3/825
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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
D21H3/00
Paper or cardboard prepared by adding substances to the pulp or to the formed web on the paper-making machine and by applying substances to finished paper or cardboard (on the paper-making machine), also when the intention is to impregnate at least a part of the paper body
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D21H3/825
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Patents Grants
last 30 patents
Information
Patent Grant
Papers comprising aerogel powder and aramid polymer fibrils
Patent number
11,578,461
Issue date
Feb 14, 2023
DuPont Safety & Construction, Inc.
Mehdi Afshari
D21 - PAPER-MAKING PRODUCTION OF CELLULOSE
Information
Patent Grant
Oyster paper and manufacturing method thereof
Patent number
11,401,391
Issue date
Aug 2, 2022
Don Jia Poly Plastic Ltd.
Jui Lung Huang
B29 - WORKING OF PLASTICS WORKING OF SUBSTANCES IN A PLASTIC STATE, IN GENERAL
Patents Applications
last 30 patents
Information
Patent Application
PAPERS COMPRISING AEROGEL POWDER AND ARAMID POLYMER FIBRILS
Publication number
20210363699
Publication date
Nov 25, 2021
DUPONT SAFETY & CONSTRUCTION, INC.
Mehdi Afshari
D21 - PAPER-MAKING PRODUCTION OF CELLULOSE
Information
Patent Application
METHOD FOR MANUFACTURING ENVIRONMENTAL FRIENDLY CUSHIONING MATERIAL
Publication number
20160194828
Publication date
Jul 7, 2016
Li Jaw Industrial Corporation Limited
Kun-Hsiang CHANG
D21 - PAPER-MAKING PRODUCTION OF CELLULOSE