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World Traditional Medicine Patent Database. Yanhuai Liu, President Beijing East Linden. Values of TCM.

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Yanhuai liu president beijing east linden

World Traditional MedicinePatent Database

Yanhuai Liu, President

Beijing East Linden

Values of tcm
Values of TCM

  • Developed and refined over thousands of years by the Chinese people for use in the prevention and treatment of disease, traditional Chinese medicine (TCM) is one of mankind’s greatest treasures.

Inner Canon of Huangdi

World traditional medicine patent database
World Traditional Medicine Patent Database

World traditional medicine patent database (WTM) produced by East Linden is the world’s first and only traditional medicine patent database with integration of multinational patent resources.

Database coverage


Over 180K basic patents in traditional /natural medicine field(over 500K patent family members) are included.

Countries & Organizations


Time Scope

US : 1985 to present

CN: 1985 to present

Others: 1985 to 2008

Database Coverage

Contents main features

Bibliographic information

Enhanced title, abstract, IPC

Chemical structures

Indexed terms and codes

Therapeutic effects


Patent citations

Patent families

Patent specifications

Multilingual search

(e.g. English, Latin and Chinese)

Indexed terms search

Natural medicine search

Chemical structures search

Formula and formula similarity search

Synonym extension search

Statistics analysis

Contents & Main Features

WTMPD Scheme

Search Options

Patent Full-Text




Accompanying Diagram

English Name

English Synonym

Chinese Name

Chinese Synonym

Chinese Systemic Name

Chinese Pinyin





Chemical Structure


Formula File

Active Ingredient


TM Registration No. (CN)


CAS Registration No. ( RN)

Therapeutic Classification

Specific Structure Search



Patent Bibliographic Database

Chemical Structure

Chinese Standard Name

Chinese Synonym

Chinese Standard Name

Chinese Synonym

Latin Drug Name

English Name

Chinese Pinyin

Latin Plant/Mineral name

TM Registration No.




Uses/Effects Subject Terms

Drug Classification

Bibliographic Information

Auxiliary files
Auxiliary Files

  • Natural Medicine File

    • Collect all natural medicine existed in patent documents. More than 13000records are included

    • Unique code system provides Traditional Medicine Classification (TMC) for TCM.

  • Compound Registry File

    • Collect all active chemical components existed in patent documents. More than 14000 chemical components are included

  • Formula Information File

  • Synonym Dictionary

World traditional medicine registration file
World Traditional MedicineRegistration File

  • World Traditional Medicine Registration File is designed to collect the natural medicine information all over the world.

  • On the basis of WTM registry file, more than 13,000 medicinal plants and 8,600 source plants are included in the file.

Indexed term it it code itc
Indexed Term (IT)/ IT Code (ITC)

  • According to the character of natural medicine patent, the patent was classified in eight invention subjects with indexed term code.

Quick search
Quick Search

Search “hypertension” in all the fields

Search History List

Quick search result
Quick Search Result

Search “hypertension” and the synonyms in all the fields

Extension search result
Extension Search Result

Set up field

Check detailed patent information by clicking the patent number

A sample record
A Sample Record

Full-text link

Full text patent record

CN Patent

US Patent

JP Patent

PCT Patent

KR Patent

Full Text Patent Record

Advanced search
Advanced Search

Check field code

Search for TCM containing “Chinese Angelica” used in alopecia treatment

Click expansion search

Advanced search result
Advanced Search Result

276 search results

Refine search
Refine Search

Secondary search entry

Refining search result by keying capsule in the abstract field

Ipc search
IPC Search

Search for IPC related to “materials from plants”

Formula logic search
Formula Logic Search

Specifying number of components contained in target formulas

Boolean search entry

Specifying therapeutic effect

Formula similarity search
Formula Similarity Search

Specifying number of formula components

Inputting TCM formula components

Narrowing the search result by formula size limitation

Setting frequently used TM name list

Natural medicine search
Natural Medicine Search

Inputting Drug Name

English Name and Synonyms

Registry Number

Latin Drug Name

Latin Plant &Mineral Name

Family Name

Chemical structure search
Chemical Structure Search

Drawing a molecular structure in the panel

Search for the exact chemical structure

Chemical structure search result
Chemical Structure Search Result

Click to show the original image of chemical structure

Sub structure search
Sub-structure Search

Drawing a molecular structure in the panel

Search chemical structures with this substructure

Sub structure search result
Sub-structure Search Result

68 hits for substructure search

Click to show the original image of chemical structure

Synonyms system
Synonyms System

Search for synonyms of NIDDM

Synonym Search

Search for synonyms of NIDDM

Add user-defined synonym

Statistic analysis
Statistic Analysis

Select search query for statistics

Select the type for statistics

User folder
User Folder

Adding patents into my patent folder

WTM Patent Database has been used by patent examiners ofSIPO

of China as a major prior art database for pharmaceutical field.

Workshops of WTMPD in SIPO of China

Usages of this database
Usages of This Database

  • Prior art search

  • Pharmaceutical research

  • Infringement search

  • Freedom to operate

  • R & D

Wtmpd usage examples
WTMPD Usage Examples

  • The database has been used heavily by examiners at SIPO for prior art search.

  • In 2009, by using our two databases - WTM patent database, TCM compound registry file and Shanghai TCM non-patent literature database , combining modern structure –biology technology and drug design technology, a research group has found a new way to design a new TCM recipe that may prevent and treat H1N1 virus infection.

Thank you for your time and attention

Thank you for your time and attention!

Liu Yanhuai

East Linden, Inc.

Tel: 86-10-82074090


Cell: 86-13621196207

Email: [email protected]