On March 21, 1861, Constitution of the Confederate States of America established a Patent Office. The Confederate Patent Office was the agency of the Confederate…
Disney has invented entirely new kind of books. The patented animated books use an integrated projector to provide a more immersive experience to the readers.…
IBM patented a karaoke system for social media Karaoke is a social entertainment activity where amateur singers sing along to selected music. In offline scenarios,…
On March 20, 1883, Jan Matzeliger was issued patent for a “lasting device for shoes”. This invention made the mass production of inexpensive shoes possible.…
On March 18, 1947, Quinlan Pretzel Company patented a Pretzel twisting machine. Pretzel is a type of baked bread product made from dough most commonly…
