Patents by Inventor Mark G. Fletcher

Mark G. Fletcher 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).

  • Method and apparatus for producing frozen particles using an entrapment zone of atomized cryogenic liquid droplets
    Patent number: 5475984
    Abstract: This invention relates to an apparatus and process for producing frozen particles of a liquid product having a liquid product nozzle for introducing liquid product droplets to be frozen and a plurality of cryogenic nozzles for introducing a cryogenic liquid directed away from the liquid product droplets.
    Type: Grant
    Filed: August 29, 1994
    Date of Patent: December 19, 1995
    Assignee: E. I. Du Pont de Nemours and Company
    Inventors: Nicholas R. Fermani, Mark G. Fletcher
  • Trehalose as stabilizer and tableting excipient
    Patent number: 4762857
    Abstract: An improved method for preparing tablets useful in diagnostic and therapeutic applications, utilizing trehalose as an excipient and stabilizer, is provided.
    Type: Grant
    Filed: April 23, 1987
    Date of Patent: August 9, 1988
    Assignee: E. I. Du Pont de Nemours and Company
    Inventors: Ernest Bollin, Jr., Mark G. Fletcher
  • Trehalose as stabilizer and tableting excipient
    Patent number: 4678812
    Abstract: An improved method for preparing tablets useful in diagnostic applications, utilizing trehalose as an excipient and stabilizer, is provided.
    Type: Grant
    Filed: May 30, 1986
    Date of Patent: July 7, 1987
    Assignee: E. I. Du Pont De Nemours and Company
    Inventors: Ernest Bollin, Jr., Mark G. Fletcher