Best Places to Start

United States Patent and Trademark Office (USPTO)

This is the portal to the USPTO, which offers a database of patents issued throughout our nation's history and includes schematics for many of them. There is also a searchable database for trademarks located at this site.

National Aeronautics and Space Administration (NASA)

This is the web site of the National Aeronautics and Space Administration, providing access to information about United States space exploration efforts, astronomical observations, and scientific educational outreach activities.