This Day in Patent History - William Webster filed patent for the first electrical treatment method of sewage on February 10, 1888 in Australia The patent was filed in the US on December 22, 1887. The patented method treated sewage and other impure Water by’ electrolytic action in such…
This Day in Patent History - Pizza tripod was patented on February 12, 1983 Pizza tripod was patented on February 12, 1983. Pizza tripod is the circular thing that keeps the pizza from hitting the inside of the box…
This Day in Patent History - On February 12 1974, Stephen Kovacs received a patent for a magnetic heart pump This Day in Patent History – On February 12 1974, Stephen Kovacs received a patent for a magnetic heart pump The magnetically driven heart pump…
