On March 11, 1851, U.S. Patent No. 7,972 issued to James W. Fowle on a Rock-Drilling Machine.
Category Archives: Patent of the Day
March 10 Patent of the Day
March 9 Patent of the Day
March 8 Patent of the Day
March 7 Patent of the Day
March 6 Patent of the Day
On March 6, 1646, Joseph Jenckes was awarded the first patent in North America by the General Court of Massachusetts, for making scythes. This basic scythe design remained in use for over 300 years.
March 5 Patent of the Day
March 4 Patent of the Day
March 3 Patent of the Day
On March 3, 1821, U.S. Patent No. X3306 issued to Thomas L. Jennings for a “dry scouring” cleaning process. Thomas was an African American businessman and abolitionist in New Your City, and was the first African-American to be issued a U.S. Patent.







