Patents by Inventor Phillip M. Hudnall

Phillip M. Hudnall 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).

  • Process for the preparation of (arylethyl)-hydroquinones and diesters thereof
    Patent number: 5608120
    Abstract: Disclosed is a process for the preparation of 2-(1-arylethyl)hydroquinones by the reaction of a hydroquinone compound with an arylvinyl compound in the presence of a phosphoric acid alkylation catalyst in a two-phase liquid reaction medium comprising water and a water-immiscible organic solvent. Formation of the corresponding bis-(1-arylethyl)hydroquinone is minimized resulting in excellent selectivity to the mono-(1-arylethyl)hydroquinone compound.
    Type: Grant
    Filed: February 17, 1995
    Date of Patent: March 4, 1997
    Assignee: Granmont, Inc.
    Inventor: Phillip M. Hudnall
  • Preparation of quinones by the ceric-catalyzed oxidation of aromatic diols
    Patent number: 5107003
    Abstract: Disclosed is a process for the preparation of quinones by the catalytic oxidation of aromatic diols with a peroxide in the presence of a catalytic amount of ceric trihydroxyhydroperoxide.
    Type: Grant
    Filed: March 18, 1990
    Date of Patent: April 21, 1992
    Assignee: Eastman Kodak Company
    Inventors: Yeong-Jen Kuo, Michael Bellas, Phillip M. Hudnall