Welcome to IFI Claims Patent Services

CLAIMS^{^Ž} Comprehensive Database

The premier source for U.S. chemical patent information

CLAIMS^Ž Chemical Indexing Databases (Uniterm Database and Comprehensive Database) include all of the information contained in the CLAIMS^Ž U.S. Patents Database as well as in-depth subject indexing for chemical and biological patents.

This indexing, which uses standardized terminology to describe chemical concepts, novelty, and utility of the invention, provides for more comprehensive retrieval of chemical and biological patents. Some key features of the CLAIMS^Ž Chemical Indexing Databases include:

Effective and versatile polymer search system
Coverage of all chemical and biological technologies back to 1950
Indexing based on the complete patent document, emphasizing what is novel and useful about the invention
In-depth fragmentation system used to describe Markush structures, generic chemical structures and specific structures not found in IFI's compound registry
Standardized linear notations for chemical structures which can be searched and displayed online
Indexing performed by experienced IFI chemists
Well-defined indexing guidelines and a comprehensive proprietary thesaurus which ensure consistency
Monthly updates.

The CLAIMS^Ž Comprehensive Database is available only to IFI subscribers. The database contains all of the patent information that is in the CLAIMS^Ž U.S. Patent and CLAIMS^Ž Uniterm databases. In addition, this file contains special subject indexing with enhanced retrieval capabilities for chemical and chemically related patents. This indexing, which includes general terms, compound terms, and fragment terms, provides for much more comprehensive retrieval of chemical patents.

Some of the important features of the CLAIMS^Ž Comprehensive Database include:

Enhanced polymer retrieval system
Comprehensive substructure fragmentation system
Ability to search roles to define chemical functions
Usage time not restricted

Roles are two digit numbers used to tell whether a substance is present, a reactant, or a product in a particular patent, and are used extensively in the IFI polymer indexing system.

The CLAIMS^Ž Comprehensive Database is available from the following online vendors using the file numbers indicated after the vendor name:

Dialog — 942

STN — IFICDB

Questel — IFICDB

Uniterm Online Price
Uniterm and Comprehensive Subscription Prices