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…
On May 7, 1878 Joseph Winters received patent for a wagon-mounted fire escape ladder - This Day in Patent History Winters noticed that firemen had to take ladders off of their wagons to climb to windows, rescue people, and spray water on fires. He thought…
On May 6, 1851 John Gorrie received a patent for an ice-making machine - This Day in Patent History On May 6, 1851 John Gorrie received a patent for an ice-making machine. He was an early pioneer in the invention of the artificial manufacture…
This Day in Patent History - On May 5, 1809 Mary Kies became the first women to get a patent. It was for a process for "weaving straw with silk or thread" The patent was signed by President James Madison. Kies’ technique proved valuable in making cost-effective work bonnets. The first lady Dolly Madison was so pleased…
