TDIPH Archives - Patent Yogi LLC

This Day in History - Cotton gin patent is regarded as one of the greatest American patents

On March 14, 1794, Eli Whitney was granted patent for the cotton gin. ‘Gin’ is shortened form of ‘engine’. This cotton engine separates cotton from…

This calculating machine eased the monotony of clerical work - This Day in Patent History

On August 21, 1888, William Seward Burroughs was issued four patents for the first successful “calculating machine.” Adding machines of his time were unreliable and…

Canada’s first patent was on Eureka Fluid Meter - This Day in Patent History

On August 18, 1869, Canadian Intellectual Property Office issued the Canadian patent to W. Hamilton for Eureka Fluid Meter, a machine for measuring liquids. The…

This patent started the era of shape-shifting furniture - This Day in Patent History

On August 15, 1848, the first U.S. patent for a dental chair with adjustable elevation and tilt of the seat and back was issued to M.W. Hanchett…

On August 8, 1899, first refrigerator patent was issued to Albert T. Marshall - This Day in Patent History

On August 8, 1899, first refrigerator patent was issued to Albert T. Marshall. It includedan automatic motor cut-off in case it was needed, and a…

On August 6th,1935, William Coolidge obtained a patent for the cathode ray tube, a critical ingredient of TV - This Day in Patent History

Coolidge was one of the most important innovators of the 20th century in his field. Coolidge developed the ductile tungsten filament used in lightbulbs, fluorescent…

On August 4th, 1693, Champagne is said to have been invented by Dom Pierre Pérignon, a French monk - This Day in Patent History

On August 4th, 1693, Champagne is said to have been invented by Dom Pierre Pérignon, a French monk

On May 8, 1925, Donald Bradner and Oglesby Nicholas patented a process of producing smoke clouds from moving aircraft - This Day in Patent History

The smoke producing liquids are dropped from an aircraft, wherein the liquid reacts with one or more of the constituents of the air or atmosphere…