page_title: List of Edison patents
section_title: 201 to 300
hierarchical_section_title: List of Edison patents / American patents / 201 to 300
caption_attribution_description: English: U.S. Patent 248,565 - Thomas Edison - Webermeter (water splitting)
context_page_description: Below is a list of Edison patents. Thomas Edison was an inventor who accumulated 512 patents worldwide for his inventions. 1,093 of Edison's patents were in the United States, but other patents were approved in countries around the globe.
context_section_description: The next series of patents Edison received was mainly for the electrical distribution of power and the electric light.  In 1883, Edward H. Johnson, a business associate of Edison, persuaded Frank J. Sprague to work for Edison. One of Sprague's significant contributions to the Edison Laboratory was the introduction of mathematical methods.
  U.S. Patent 0,248,433 – Vacuum Apparatus (1881)
  U.S. Patent 0,248,434 – Governor for Electric Engines
  U.S. Patent 0,248,435 – Utilizing Electricity as a Motive Power
  U.S. Patent 0,248,436 – Depositing Cell for Plating the Connections of Electric Lamps, & c.
  U.S. Patent 0,248,437 – Apparatus for Treating Carbons for Electric Lamps
  U.S. Patent 0,248,565 – Webermeter 
  U.S. Patent 0,251,536 – Vacuum-Pump
  U.S. Patent 0,251,537 – Dynamo-Electric Machine
  U.S. Patent 0,251,538 – Electric Light
  U.S. Patent 0,251,539 – Electric Lamp
  U.S. Patent 0,251,540 – Carbon for Electric Lamps
  U.S. Patent 0,251,541 – Electro-Magnetic Motor
  U.S. Patent 0,251,542 – System of Electric Lighting
  U.S. Patent 0,251,543 – Electric Lamp
  U.S. Patent 0,251,544 – Manufacture of Electric Lamps
  U.S. Patent 0,251,545 – Electric Meter
  U.S. Patent 0,251,546 – Electric Lamp
  U.S. Patent 0,251,547 – Electrical Governor
  U.S. Patent 0,251,548 – Incandescent Electric Lamp
  U.S. Patent 0,251,549 – Electric Lamp and the Manufacture Thereof
  U.S. Patent 0,251,550 – Magneto or Dynamo Electric Machine
  U.S. Patent 0,251,551 – System of Electric Lighting
  U.S. Patent 0,251,552 – Underground Conductors
  U.S. Patent 0,251,553 – Electric Chandelier
  U.S. Patent 0,251,554 – Electric Lamp and Socket or Holder
  U.S. Patent 0,251,555 – Regulator for Dynamo-Electric Machines
  U.S. Patent 0,251,556 – Regulator for Magneto or Dynamo Electric Machines
  U.S. Patent 0,251,557 – Webermeter
  U.S. Patent 0,251,558 – Webermeter
  U.S. Patent 0,251,559 – Electrical Drop-Light
  U.S. Patent 0,252,442 – Telephone
  U.S. Patent 0,257,677 – Telephone
  U.S. Patent 0,263,131 – Magnetic Ore-Separator
  U.S. Patent 0,263,132 – Electro-Magnetic Railway
  U.S. Patent 0,263,133 – Dynamo or Magneto Electric Machine
  U.S. Patent 0,263,134 – Regulator for Dynamo or Magneto Electric Machines
  U.S. Patent 0,263,135 – Electric Lamp
  U.S. Patent 0,263,136 – Regulator for Dynamo or Magneto Electric Machines
  U.S. Patent 0,263,137 – Electric Chandelier
  U.S. Patent 0,263,138 – Electric-Arc Light
  U.S. Patent 0,263,139 – Manufacture of Carbons for Electric Lamps
  U.S. Patent 0,263,140 – Dynamo-Electric Machine
  U.S. Patent 0,263,141 – Straightening Carbons of Electric Incandescent Lamps
  U.S. Patent 0,263,142 – Electrical Distribution System
  U.S. Patent 0,263,143 – Magneto or Dynamo Electric Machine
  U.S. Patent 0,263,144 – Mold for Carbonizing Incandescents
  U.S. Patent 0,263,145 – Process of Making Incandescents
  U.S. Patent 0,263,146 – Dynamo Magneto Electric Machine
  U.S. Patent 0,263,147 – Vacuum Apparatus
  U.S. Patent 0,263,148 – Dynamo or Magneto Electric Machine
  U.S. Patent 0,263,149 – Commutator for Dynamo or Magneto Electric Machines
  U.S. Patent 0,263,150 – Magneto or Dynamo Electric Machine
  U.S. Patent 0,263,878 – Electric Lamp
  U.S. Patent 0,264,642 – Electric Distribution and Translation System
  U.S. Patent 0,264,643 – Magneto-Electric Machine
  U.S. Patent 0,264,645 – System of Conductors for the Distribution of Electricity
  U.S. Patent 0,264,646 – Dynamo or Magneto Electric Machine
  U.S. Patent 0,264,647 – Dynamo or Magneto Electric Machine
  U.S. Patent 0,264,648 – Dynamo or Magneto Electric Machine
  U.S. Patent 0,264,649 – Dynamo or Magneto Electric Machine
  U.S. Patent 0,264,650 – Manufacture of Incandescing Electric Lamps
  U.S. Patent 0,264,651 – Incandescent Electric Lamp
  U.S. Patent 0,264,652 – Incandescent Electric Lamp
  U.S. Patent 0,264,653 – Incandescent Electric Lamp
  U.S. Patent 0,264,654 – Incandescent Electric Lamp
  U.S. Patent 0,264,655 – Incandescing Electric Lamp
  U.S. Patent 0,264,656 – Incandescent Electric Lamp
  U.S. Patent 0,264,657 – Incandescent Electric Lamp
  U.S. Patent 0,264,658 – Regulator for Dynamo-Electric Machines
  U.S. Patent 0,264,659 – Regulator for Dynamo-Electric Machines
  U.S.
caption: US Patent 248565 Webermeter (Electrolysis of water / water splitting)
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