February 19, 2016 – Patent Yogi LLC

This Day in Patent History - On February 20, 1872, Luther Crowell patented a machine that manufactured the square-bottom paper grocery bags

On February 20, 1872, Luther Crowell patented a machine that manufactured the square-bottom paper grocery bags. The square-bottom paper grocery bag has been around well…

This Day in Patent History - On February 19, 1878, Thomas Edison received a patent for the phonograph

On February 19, 1878, Thomas Edison received a patent for the phonograph. The photo shows Thomas Edison with his patented phonograph.The device could mechanically record…

This Day in Patent History - On February 21, 1865 John Deere (blacksmith) received a patent for plow

On February 21, 1865 John Deere (blacksmith) received a patent for ploughs. He founded Deere & Company in 1837, which still is a major player…