Patents by Inventor Eric MacMillan

Eric MacMillan 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).

  • Aromatic hydroxythiol synthesis using diazonium salts
    Patent number: 6303822
    Abstract: A method for the preparation of aromatic hydroxythiols including oxidizing an aromatic aminothiol to form an aminodisulfide compound; forming a bis-diazonium salt of the aminodisulfide compound; and reacting the bis-diazonium salt with water to form an aromatic hydroxyldisulfide compound, which is then reduced to the hydroxythiol. New bis-diazonium aromatic disulfide compounds are also disclosed.
    Type: Grant
    Filed: February 29, 2000
    Date of Patent: October 16, 2001
    Assignee: AlliedSignal Inc.
    Inventors: Mingbao Zhang, David Ryckman, Eric MacMillan
  • Aromatic hydroxythiol synthesis using diazonium salts
    Patent number: 6054622
    Abstract: A method for the preparation of aromatic hydroxythiols including oxidizing an aromatic aminothiol to form an aminodisulfide compound; forming a bis-diazonium salt of the aminodisulfide compound; and reacting the bis-diazonium salt with water to form an aromatic hydroxyldisulfide compound, which is then reduced to the hydroxythiol. New bis-diazonium aromatic disulfide compounds are also disclosed.
    Type: Grant
    Filed: December 18, 1998
    Date of Patent: April 25, 2000
    Assignee: AlliedSignal Inc
    Inventors: Mingbao Zhang, David Ryckman, Eric MacMillan