On December 31, 1895, Ogden Bolton Jr. was granted first patent for a battery-powered bicycle. The bicycle included 6-pole brush-and-commutator direct current (DC) hub motor…
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.
Celebrity Patent – Steven Spielberg patented a method for Annotating a Line-Based Document. The method enables multiple people collaborate on screenplay writing process. …
The appearance of these images may be similar to that of lithophanes. However, the patented technology does not require the use of any backlight. The…
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