On December 25, 2007, a patent was granted for this Christmas ornament that displays a string of Christmas lights on a spinning upper hub. …
Tag: TDIPH
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,…
This Day in Patent History - On December 17, 1902, Pattillo Higgins filed a patent for a novel machine for drilling deep oil wells
On December 17, 1902, Pattillo Higgins filed a patent for a novel machine for drilling deep oil wells. Pattillo Higgins was a businessman as well…
This Day in Patent History - On December 16, 1914, Charles Francis Jenkins filed a patent for Gravity-railway device
On December 16, 1914, Charles Francis Jenkins (a prolific inventor) filed a patent for Gravity-railway device, that allows a railway car carrying minerals or passengers…
This Day in Patent History - On December 15, 1964, Kenneth Olsen (founder of DEC) received a patent for "magnetic core memory"
On December 15, 1964, Kenneth Olsen (founder of DEC) received a patent for “magnetic core memory”. This was the first used in a minicomputer. In 1986,…
This Day in Patent History - On December 14, 1895, H. W. Libbey filed a patent for an electric bicycle
On December 14, 1895, H. W. Libbey filed a patent for an electric bicycle. This was second patent granted on electric bicycle. The bicycle propelled…