Patents by Inventor Nancy M. Clipse

Nancy M. Clipse 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 improving mechanical shear stability of acrylic enteric polymers
    Patent number: 5416157
    Abstract: Provided is a process useful for making acrylic polymers of methacrylic acid having improved shear stability. The process provides polymers useful as enteric coatings for medicaments having improved coating efficiency of pharmaceutical forms. Also provided are medicaments in solid form coated with said polymers.
    Type: Grant
    Filed: September 9, 1993
    Date of Patent: May 16, 1995
    Assignee: Eastman Chemical Company
    Inventors: Robert G. Chen, Nancy M. Clipse