Industrial patent activity in the United States.
Contributors: United States. Patent and Trademark Office. Office of Documentation Information.; United States. National Technical Information Service.
Series: NTIS patent information series; Patent information series
Publisher: U.S. Patent and Trademark Office, Documentation Organizations; National Technical Information Service
Published: 1990
Place of publication: [Washington, D.C.]; [Springfield, Va.]
Language: eng
Subjects: Patents -- United States -- Statistics.; Technology assessment -- United States -- Statistics.
Notes: "July 1990."

Pt. 1: "PB90-214404."

Pt. 2: "PB90-214412."

Chiefly tables.
Table of contents: value: pt. 1. Time series profile by company and country of origin, 1969-1989.; value: pt. 2. Alphabetical listing by company, 1969-1989.