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February 2020

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January 2020

Changes to Derwent WPI Update numbering and the total number of annual DWPI updates

December 2019

Derwent World Patents Index: Manual Code revision 2020

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LMARPAT

 Summary Sheet

Description:

Producer:Chemical Abstracts Service (CAS), USA
Coverage:Selected MARPAT structure records for patents found in CAplus with the publication year of 1988-1989
File Size:569 records
Updates:Static file
File Type:Markush, Stucture, Learning
Content:Markush structures in patents
Language:English

LMARPAT is a training file for MARPAT and contains the Markush structure records for patents cited in the CA file.

Producer:

Chemical Abstracts Service
2540 Olentangy River Road
P. O. Box 3012
Columbus, Ohio 43210-0012
Phone: (+1) 614-447-3600
Fax: (+1) 614-447-3798
Email: help(at)cas(dot)org

Usage Terms

The CAS Information Use Policies which apply to your use of the LMARPAT File on STN are explained in detail.

Contents of CAS Information Use Policies

Part 1:
I. Introduction
II. Definitions

Part 2:
III. Authorized Use of CAS Information

Part 3:
IV. Unauthorized Use of CAS Information
V. Special Permission
VI. Further Information

Further details on the STN Information Keep & Share Program.