Patents by Inventor Mathew E. McDowell

Mathew E. McDowell 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: 5288700
    Abstract: The present invention provides novel metal complexes and solutions containing the complexes which are useful for converting light energy into electrical energy. The complexes are formed by complexing certain metals, such as iron, with a carboxyl compound, chloride and ammonia to form a complex having carboxyl ligands, chloride ligands and ammonia ligands. The preferred carboxyl compound is citric acid, acetic acid or salts thereof. The invention also provides a solar cell which comprises a transparent container which contains a pair of electrodes immersed in the metal complex.
    Type: Grant
    Filed: July 9, 1992
    Date of Patent: February 22, 1994
    Inventor: Mathew E. McDowell
  • Patent number: 5030743
    Abstract: The present invention provides novel metal complexes and solutions containing the complexes which are useful for converting light energy into electrical energy. The complexes are formed by complexing certain metals, such as iron, with a carboxyl compound, chloride and ammonia to form a complex having carboxyl ligands, chloride ligands and ammonia ligands. The preferred carboxyl compound is citric acid, acetic acid or salts thereof. The invention also provides a solar cell which comprises a transparent container which contains a pair of electrodes immersed in the metal complex.
    Type: Grant
    Filed: September 29, 1987
    Date of Patent: July 9, 1991
    Inventor: Mathew E. McDowell