Patent Searching, Advanced

This guide discusses patent coverage in the SciFinder database (CAS=Chemical Abstract Services). CAS covers patents from around the world. Patent records from nine major patent offices worldwide that meet CAS selection criteria are available online in CAplus within two days of the patent's publication, and fully indexed by CAS scientists within 27 days from the date of issue.

Search this database hosted by WIPO simply by entering a medicine’s INN (International Nonproprietary Name) to obtain relevant information about its patent status in a particular country.

A weekly review of chemistry-related patents from 2011-2015 only.

The 4th edition published in 2019

FDA-approved drug products with therapeutic equivalence evaluations

Search by active ingredient, brand name, Drug Information Number (DIN) and patent number.