Patents by Inventor Paul W. Mackey

Paul W. Mackey 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).

  • Fragranced orthodontic appliances and method of forming same
    Patent number: 6589050
    Abstract: The fragrant orthodontic appliance, the method of forming the same include mixing a powdered polymeric component, a liquid monomeric component, applying the components to a mold, and cold curing the orthodontic appliance. Both the powdered and the liquid components contain a selected fragrant oil. Suspension polymerization process is utilized to encapsulate the fragrance in the powdered polymeric component.
    Type: Grant
    Filed: May 29, 2001
    Date of Patent: July 8, 2003
    Inventors: Paul W. Mackey, Tanya L. Woods
  • Internal mold release compositions
    Patent number: 5576409
    Abstract: An internal mold release system is provided which comprises (a) a carboxylic acid and (b) a compound selected from the group consisting of a fatty polyester, a fatty acid ester and a fatty amide.
    Type: Grant
    Filed: August 25, 1995
    Date of Patent: November 19, 1996
    Assignee: Imperial Chemical Industries PLC
    Inventor: Paul W. Mackey
  • Amphiphilic networks
    Patent number: 5073381
    Abstract: New controlled and/or sustained drug release amphiphilic compositions based on various amphiphilic networks of the present invention are described. New processes for manufacturing amphiphilic networks are also described. These new processes allow for the production of more diverse amphiphilic networks. The controlled and/or sustained drug release properties of the networks of the present invention show release controlled and sustained release profiles for 20 hours or more and Fickian and non-Fickian diffusion rates.
    Type: Grant
    Filed: June 13, 1990
    Date of Patent: December 17, 1991
    Assignee: University of Akron
    Inventors: Bela Ivan, Joseph P. Kennedy, Paul W. Mackey