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…
Tag: ThisDayInPatentHistory
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…
This Day in Patent History - On December 21, 1839, S. Barnard patented a mode of constructing portable houses for emigrants
On December 21, 1839, S. Barnard patented a mode of constructing portable houses for emigrants. …
This Day in Patent History - On December 18, 1900, Cleophas Monjeau filed a patent for an apparatus for purifying water
On December 18, 1900, Cleophas Monjeau filed a patent for an apparatus for purifying water. The three-tiered filter was made up of vegetation on top,…