Rat Trap

Jason Alexander Williams didn’t mess around when it came to killing rodents. His ‘animal trap’ (patented in 1882) shot them dead: My invention relates to an improvement in animal-traps; and it consists in the combination of a suitable frame upon which a revolver or pistol is secured, a treadle which is secured to the front […]

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Clean hands assured

Claude Davis of Melbourne, Florida obtained a patent for this curious device in 2000. The gadget attached to bathroom doors. Whenever someone turned the handle to open the door, the gadget would spray their hand with dye. This, reasoned Davis, would encourage people to wash their hands, to remove the dye. He imagined his invention […]

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In 1821, Thomas Jennings became…

In 1821, Thomas Jennings became the first African-American to hold a patent. He invented ‘dry scouring’, a method for removing dirt and grease from clothing that would lead to today’s dry cleaning.

The first patent for an electronic…

The first patent for an electronic cigarette was already filed in 1963, but inventor Herbert Gilbert never found a company willing to mass-produce his invention. His device works the same way as modern e-cigarettes, “containing a liquid that was warmed by a battery-powered device, creating a vapor that a person inhaled”.

Even though Benjamin Franklin…

Even though Benjamin Franklin is credited with many popular inventions, he never patented or copyrighted any of them. He believed that they should be given freely and that claiming ownership would only cause trouble and “sour one’s Temper and disturb one’s Quiet.”