Dr. John Harvey Kellogg
the seat warmers were invented in 1951 but did not receive a patent until 1955.
He invented barbed wire, as well as other people, but was the first to receive a patent after a long legal battle.
Sarah Boone invented the ironing board. She lived near New Haven Connecticut and was one of the first African American women to receive a patent for an invention.
I do not think Jefferson held any patents. He invented the dumb waiter, maybe. At least he was one of the first to have one.
Alfred Nobel had the first patent on dynamite. He invented it.
The first African American to receive a patent for an invention was Thomas L. Jennings. He invented a process of dry cleaning in 1821.
It was invented by Robert Ballard of General Motors in 1951, and the patent was issued in 1955 (patent #2,698,893).
It was invented by Robert Ballard of General Motors in 1951, and the patent was issued in 1955 (patent #2,698,893).
One type of patent is the design patent, which protects "ornamental characteristics." If the design is sufficiently innovative, it may receive a design patent.
Lloyd Ray was the first African American to receive a patent for improving the dustpan by attaching a short, wooden handle to a metal collection plate. He received the patent on August 3, 1897.
William F. Semple receive a patent for chewing gum on December 28, 1869.
Mary Kies was the first woman to receive a US patent. She patented her method of weaving straw with silk.