Pearson Solutions
Close windowBack to Pearson
From Information Please Back to Fact Monster Home Page
Search
Ask the Fact Monster

The Question:

Who was the only U.S. president to have a patent on an invention? What was the invention?

The Answer:

On May 22, 1849 Abraham Lincoln was granted U.S. Patent No. 6,469 "A Device for Buoying Vessels over Shoals."

Here is a link to the patent of his invention.

—The Fact Monster

Information Please® Database, © 2007 Pearson Education, Inc. All rights reserved.
Link to Fact Monster | Add Fact Monster search to your site | Awards and Press
Contact Fact Monster | Advertise with Fact Monster | Rights | Privacy | Terms of Use
Brought to you by: Information Please
© 2000–2007 Pearson Education, publishing as Fact Monster