More-Like-This Search Overview

Textwise maintains independent indexes of the United States Patent and Application publications using the same USPTO data sources as the Library.

• US Utility Patent Publications Index – 1976 to present

• US Utility Patent Application Publications Index – 2001 to present

• Canadian Patent Publications Index – 1978 to present

• Canadian Patent Application Publications Index – 1990 to present

• IP.com Prior Art Database Publications Index – to present

• IBM Redbooks Publications Index – to present

Notes regarding the indicies:

1. The Textwise More-Like-This (MLT) service processes English language only publications.
2. Updates are applied as soon as the data becomes available to Textwise; the MLT indicies seek to be as current as possible. Updates are applied weekly.
3. Once a US Utility Patent issues, its associated Application is removed from the Application index.
4. For US Patent and Application publications, the MLT indicies incorporate the following fields: Title, Abstract, Claims, Background of the Invention, Summary of the Invention, and Field of the Invention.
5. For IP.com Prior Art Database publications, the MLT index incorporates the following fields: Title, Abstract, and Extracted Text.
6. For IBM Redbooks publications, the MLT index incorporates the following fields: Title, Abstract, Product Keywords, and Extracted Text.