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last 30 patents
Information
Patent Grant
Intermediate of eribulin and synthesis method and use thereof
Patent number
11,976,081
Issue date
May 7, 2024
BEIJING TIENYI LUFU PHARMATECH CO. LTD.
Weiping Xu
C07 - ORGANIC CHEMISTRY
Information
Patent Grant
Intermediates useful in the preparation of halichondrin compounds a...
Patent number
11,713,329
Issue date
Aug 1, 2023
BEIJING TIENYI LUFU PHARMATECH CO. LTD.
Weiping Xu
C07 - ORGANIC CHEMISTRY
Information
Patent Grant
Pyran fused ring compound, preparation method therefor and use thereof
Patent number
11,396,515
Issue date
Jul 26, 2022
BEIJING TIENYI LUFU PHARMATECH CO. LTD.
Weiping Xu
C07 - ORGANIC CHEMISTRY
Information
Patent Grant
Electropositive production well treating fluid and method of prepar...
Patent number
7,323,434
Issue date
Jan 29, 2008
China Petroleum and Chemical Corporation
Changming Su
C09 - DYES PAINTS POLISHES NATURAL RESINS ADHESIVES MISCELLANEOUS COMPOSITION...
Patents Applications
last 30 patents
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Patent Application
INTERMEDIATE OF ERIBULIN AND SYNTHESIS METHOD AND USE THEREOF
Publication number
20220204523
Publication date
Jun 30, 2022
BEIJING TIENYI LUFU PHARMATECH CO. LTD.
Weiping XU
C07 - ORGANIC CHEMISTRY
Information
Patent Application
PYRAN FUSED RING COMPOUND, PREPARATION METHOD THEREFOR AND USE THEREOF
Publication number
20220048921
Publication date
Feb 17, 2022
BEIJING TIENYI LUFU PHARMATECH CO. LTD.
Weiping XU
C07 - ORGANIC CHEMISTRY
Information
Patent Application
Intermediates useful in the preparation of halichondrin compounds a...
Publication number
20210163509
Publication date
Jun 3, 2021
BEIJING TIENYI LUFU PHARMATECH CO. LTD.
Weiping XU
C07 - ORGANIC CHEMISTRY
Information
Patent Application
Electropositive production well treating fluid and method of prepar...
Publication number
20040180795
Publication date
Sep 16, 2004
Changming Su
C09 - DYES PAINTS POLISHES NATURAL RESINS ADHESIVES MISCELLANEOUS COMPOSITION...