TDIH Archives - Page 20 of 20

Interesting fact about patents - The ancient Greeks in 500 B.C. first granted protection to inventors

The ancient Greeks in 500 B.C. granted protection to inventors. First patent law was enacted by the Venetian Republic in 1474.

This Day in Patent History - On September 25, 1908, Elmer Sperr filed a patent for gyroscope

On September 25, 1908, Elmer Sperr filed a patent for gyroscope. He is noted as father of modern navigation technology. By the time of his…

Serendipitous Invention (TEFLON): This Day in Patent History - On February 4, 1941 Roy Plunkett received a patent for TEFLON

Serendipitous Invention – TEFLON On February 4, 1941 Roy Plunkett received a patent for “tetrafluoro-ethylene polymers” (TEFLON). Roy serendipitously invented TEFLON, while working for a…

This Day in Patent History - On January 23, 1849, a patent was granted for an envelope-making machine, greatly reducing the time needed for the mass production of envelopes

On January 23, 1849, a patent was granted for an envelope-making machine, greatly reducing the time needed for the mass production of envelopes. Patent…