Inventor

Liang Huang

Inventor

Beijing, CN

Overview

9→

Patents

1988–2020

Patent span

Chemistry

Primary field (CPC C)

Patents· 9 as inventor

Public. Assignee & technology derived from the patent record. Each patent links to its LexDana page.

C07Dprimary

C07DHeterocyclic compounds42%

A61PSpecific therapeutic activity of chemical compounds or medicinal preparations37%

C12NMicroorganisms or enzymes5%

C12PFermentation or enzyme-using processes to synthesise a desired chemical compound or composition or to separate optical isomers from a racemic mixture5%

C12RIndexing scheme associated with subclasses c12c - c12q, relating to microorganisms5%

C12YEnzymes5%

PatentTitleYear

10,655,117Pullulanase and use thereof2020 6,787,564'Optically active clausenamides, process of the preparation thereof, pharmaceutical composition containing the same and their medical use'2004 5,132,433'Process for the preparation of clausenamide and neoclausenamide, and derivatives thereof'1992 5,093,350'Dehydrocycloclausenamide, its preparation and use in treating cerebral hypoxia'1992 4,937,360'N-substituted amide derivatives useful for treating liver diseases'1990 4,927,937'Pharmacologically active .epsilon.-valerolactams'1990 4,879,390'Delta-butyrolactams, thereof, processes for the preparation thereof and their medical use'1989 4,826,873'2,3-dihydroxy-3-phenyl-N-(2-phenyl-ethyl)-propionic acid amides derivatives thereof'1989 4,757,064'Pharmacologically active bicyclic lactams'1988

Career & activity timeline

Assembled from patent assignee/location history and declaration credentials.

1988–1992Patents assigned to BAYER AG (6)· patent assignee history

1988–1992Patents assigned to CHINESE ACAD MED SCIENCE (6)· patent assignee history

1988–2004Based in Beijing, CN· patent location history

2004Patents assigned to INST MATERIA MEDICA CAMS (1)· patent assignee history

2020Patents assigned to BEIJING HONGMING XINDA TECH CO LTD (1)· patent assignee history

2020Patents assigned to BEIJING JINHONG TIANBANG INFORMATION TECH CO LTD (1)· patent assignee history

2020Based in Tianjin, CN· patent location history

Inventor activity

Assignee and location history derived from the patent record.

Assignees

Assignee	Patents	Span
BAYER AG	6	1988–1992
CHINESE ACAD MED SCIENCE	6	1988–1992
BEIJING HONGMING XINDA TECH CO LTD	1	2020
BEIJING JINHONG TIANBANG INFORMATION TECH CO LTD	1	2020
INST MATERIA MEDICA CAMS	1	2004

Locations

Location	Patents	Span
Beijing, CN	8	1988–2004
Tianjin, CN	1	2020