Patents by Inventor Norton Hart

Norton Hart 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).

  • A METHOD TO RELIEVE STRESS IN CAPSULE SHELLS TO REDUCE PROPENSITY TO BREAK
    Publication number: 20200069524
    Abstract: A method of treating a soft or hard capsule shell to reduce or alleviate stress in the capsule shell. The method includes a step of heating at least a portion of the soft or hard shell capsule capsule shell to a temperature above a glass transition temperature of the capsule shell but below a melt temperature of the capsule shell for a time sufficient to reduce internal stress in the capsule shell. The method can be used to reduce cracking of hard or soft capsule shells by application of the heat treatment to the filled capsule shells after fabrication and filling.
    Type: Application
    Filed: December 8, 2017
    Publication date: March 5, 2020
    Applicant: R.P. Scherer Technologies, LLC
    Inventors: Lester David Fulper, Norton Hart