TDIH Archives - Page 11 of 20 - Patent Yogi LLC

This Day in Patent History - On December 30, 1918, Peterkin Guy Shearman filed a patent for a tampon

On December 30, 1918, Peterkin Guy Shearman filed a patent for a tampon. Peterkin was in every sense a uroloical pioneer. Like some geniuses, he…

This Day in Patent History - On December 29, 1776, Charles Macintosh, the Scottish inventor, was born

On December 29, 1776, Charles Macintosh, the Scottish inventor, was born. Macintosh patented the first water-proof material. The mackintosh raincoat was named after him.

This Day in Patent History - On December 28, 1976, Patent # 4,000,000 was issued in to Robert Mendenhall for a process for recycling asphalt compositions

This Day in Patent History – On December 28, 1976, Patent # 4,000,000 was issued in to Robert Mendenhall for a process for recycling asphalt…

This Day in Patent History - On December 26, 1933, Edwin Armstrong was granted a patent for a two-path FM radio

On December 26, 1933, Edwin Armstrong was granted a patent for a two-path FM radio. He has been called “the most prolific and influential inventor…

This Day in Patent History - On December 25, 2007, a patent was granted for this Christmas ornament that displays a string of Christmas lights on a spinning upper hub

On December 25, 2007, a patent was granted for this Christmas ornament that displays a string of Christmas lights on a spinning upper hub. …

This Day in Patent History - On December 24, 1928, Gulbransen Company was granted a patent for a piano

This Day in Patent History – On December 24, 1928, Gulbransen Company was granted a patent for a piano. Gulbransen is notable for several innovations…

This Day in Patent History - On December 23, 1879, Thomas Edison patented Magneto-Electric Machine

On December 23, 1879, Thomas Edison patented Magneto-Electric Machine. The invention helps increase the effectiveness of the revolving armature. …

This Day in Patent History - On December 22, 1891, a patent was granted for Toilet-paper roll

On December 22, 1891, a patent was granted for Toilet-paper roll. This 124-year-old patent solves the ‘over versus under’ toilet paper roll debate. According to…