Patents by Inventor Ming-Hong Hung

Ming-Hong Hung 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).

  • Epoxides and their preparation
    Patent number: 5011954
    Abstract: Process comprising heating a dioxole at 100.degree.-400.degree. C. for a sufficient time to convert the dioxole to an epoxide, for example, bis-2,2-trifluoromethyl-4,5-difluoro-1,3-dioxole to 2,3-epoxy-3-trifluoromethyl-4-trifluorobutyryl fluoride.
    Type: Grant
    Filed: August 30, 1989
    Date of Patent: April 30, 1991
    Assignee: E. I. Du Pont de Nemours and Company
    Inventors: Ming-Hong Hung, Paul R. Resnick
  • Hydroxy containing fluorovinyl compounds and polymers thereof
    Patent number: 4982009
    Abstract: Novel hydroxy containing fluorovinyl ethers, polymers of hydroxy containing fluorovinyl ethers, copolymers of selected hydroxy containing fluorovinyl ethers, a process for reducing ester containing fluorovinyl compounds to the corresponding alcohol with borohydrides, and a process for polymerizing hydroxy containing fluorovinyl ethers are disclosed.
    Type: Grant
    Filed: January 31, 1990
    Date of Patent: January 1, 1991
    Assignee: E. I. du Pont de Nemours and Company
    Inventor: Ming-Hong Hung
  • Process for fluorinated allenes
    Patent number: 4967022
    Abstract: Processes for the preparation of perfluoroalkyl substituted allenes and novel bis-allenyl substituted perfluoroalkanes are disclosed.
    Type: Grant
    Filed: November 29, 1989
    Date of Patent: October 30, 1990
    Assignee: E. I. du Pont de Nemours and Company
    Inventor: Ming-Hong Hung
  • Process for dechlorinating 4,5-dichlorofluorodioxolanes to obtain fluorodioxoles
    Patent number: 4908461
    Abstract: Process for preparing dioxoles by dechlorinating 4,5-dichlorodioxolanes with selected molar quantities of a lithium aluminum hydride/titanium (III or IV) chloride reagent at 20.degree.-35.degree. C.
    Type: Grant
    Filed: November 28, 1988
    Date of Patent: March 13, 1990
    Assignee: E. I. Du Pont De Nemours and Company
    Inventor: Ming-Hong Hung