Patents by Inventor William P. Campbell, III

William P. Campbell, III has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • Patent number: 4705913
    Abstract: An amorphous silicon material fabricated by a magnetically aligned glow discharge. A junction leg (e.g., electrostatic barrier) can be formed between two adjacent semiconductor layers by forming a first semiconductor layer by glow discharge deposition in the presence of a first magnetic field to form a first layer with a first orientation, and by forming a second semiconductor layer by glow discharge deposition in the presence of a second magnetic field to form a second layer with a second orientation different from the first orientation, with the barrier being formed between the two layers having different orientations.
    Type: Grant
    Filed: April 9, 1986
    Date of Patent: November 10, 1987
    Inventor: William P. Campbell, III
  • Patent number: 4172740
    Abstract: A system for extracting energy from the sun's rays including a bank of solar energy cells which generate electrical current when exposed to the rays of the sun, immersed in a bath of liquid formed to serve as a lens, concentrating the sun rays on the cells, and transmitting heat away from the cells. The cells are shaped so as to cause a trapping effect of radiation incident thereon. The improved solar converting unit additionally includes a method for preheating the interior thereof. The converting unit is preferably equipped with light gathering and focusing means thereby providing coherent optically output.
    Type: Grant
    Filed: March 28, 1978
    Date of Patent: October 30, 1979
    Inventor: William P. Campbell, III