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The original patent term under the 1790 Patent Act was decided individually for each patent, but "not exceeding fourteen years". [26] The 1836 Patent Act (5 Stat. 117, 119, 5) provided (in addition to the fourteen-year term) an extension "for the term of seven years from and after the expiration of the first term" in certain circumstances. [ 27 ]
He was the United States Commissioner of Patents of the United States Patent Office (now the United States Patent and Trademark Office) from 1898 to 1901. He resumed private practice in New York City from 1901 to 1904. [1] He was a presidential elector in 1908. [2]
Richard Bowie Spikes (October 2, 1878 – January 22, 1963) was an African-American inventor who held several United States patents. He is credited with developing and improving inventions such as a beer tap, a modification of an automatic gear shift mechanism for motor vehicles, and a safety braking system for trucks and buses.
The 100 known most prolific inventors based on worldwide utility patents are shown in the following table. While in many cases this is the number of utility patents granted by the United States Patent and Trademark Office, it may include utility patents granted by other countries, as noted by the source references for an inventor.
The key patent for this light source, U.S. patent #2,259,040 was filed by Inman on April 22, 1936, and issued to him on October 14, 1941. [269] In 1976, Edward E. Hammer invented the first helical or spiraled compact fluorescent lamp, but due to the difficulty of the manufacturing process for coating the interior of the spiral glass tube ...
The dustpan may appear to be a type of flat scoop. The dustpan was invented and patented (U.S. patent #20,811) by the American inventor T.E. McNeill in 1858. [144] 1859 Electric stove. An electric stove is a large kitchen appliance that converts electricity into heat in order to cook and bake food.
First patents. American. X Series : U.S. patent X000001 "Improvements in making pot ash and pearle ash" 1st Numerical : U.S. patent 0,000,001 "Traction Wheel" 1st Design : U.S. patent D000001 Script font type; 1st Reissued : U.S. patent RE00001 "Grain Drill" Websites. An Economic History of Patent Institutions; French Patent History
Harry Mendell, U.S. – invented the first digital sampling synthesizer; Joy Mangano (born 1956), U.S. – household appliances; Anna Mangin (1844–1931) – American inventor, educator, caterer and women's rights campaigner; Charles Mantoux (1877–1947), France – Mantoux test (tuberculosis) Guglielmo Marconi (1874–1937), Italy – radio ...