Who is the only US President to hold a patent?
15th July 2009 by admin No CommentsAbraham Lincoln received patent #6469 on May 22, 1849 for a device to lift boats over shoals. His device was never manufactured but he did become the only president to hold a patent.
Lincoln had considerable experience as a boatman. Once while taking a boatload of merchandise down the Mississippi River, his boat slid into a [...]



