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Shandong, CN
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Patents Grants
last 30 patents
Information
Patent Grant
Circular utilization method in pulping and papermaking processes wi...
Patent number
8,778,135
Issue date
Jul 15, 2014
Shandong Tralin Paper Co., Ltd.
Hongfa Li
C05 - FERTILISERS MANUFACTURE THEREOF
Information
Patent Grant
Method for preparing a grass-type unbleached paper product
Patent number
8,303,772
Issue date
Nov 6, 2012
Shangdong Fuyin Paper & Environmental Protection Technology Co., Ltd.
Hongfa Li
D21 - PAPER-MAKING PRODUCTION OF CELLULOSE
Patents Applications
last 30 patents
Information
Patent Application
CIRCULAR UTILIZATION METHOD IN PULPING AND PAPERMAKING PROCESSES WI...
Publication number
20120325421
Publication date
Dec 27, 2012
SHANDONG TRALIN PAPER CO., LTD.
Hongfa Li
C02 - TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
Information
Patent Application
GRASS TYPE UNBLEACHED PAPER PRODUCTS AND PRODUCTION METHOD THEREOF
Publication number
20110061825
Publication date
Mar 17, 2011
SHANDONG FUYIN PAPER & ENVIRONMENTAL PROTECTION TECHNOLOGY CO., LTD.
Hongfa Li
D21 - PAPER-MAKING PRODUCTION OF CELLULOSE