Patents by Inventor Lee Tu

Lee Tu 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).

  • Patent number: 8642789
    Abstract: A co-crystal compound containing ammonium nitrate and benzo-18-crown-6-ether. Ammonium nitrate and benzo-18-crown-6-ether are used to form the co-crystal compound with hydrogen bonding in a mole ratio of 1:1. A melting point of the co-crystal compound falls within a range of 124˜130° C., and the co-crystal compound can be prepared by an evaporation method or an anti-solvent method. The co-crystal compound comes with a non-hygroscopic property, a low burning rate (7 MPa, 0.58 mm/s) and a high pressure index (n>0.6), which can be used for replacing the oxidizer of a common gas generator propellant.
    Type: Grant
    Filed: January 20, 2012
    Date of Patent: February 4, 2014
    Assignee: National Central University
    Inventors: Lee Tu, Jeng-Wei Chen
  • Publication number: 20130102797
    Abstract: A co-crystal compound containing ammonium nitrate and benzo-18-crown-6-ether. Ammonium nitrate and benzo-18-crown-6-ether are used to form the co-crystal compound with hydrogen bonding in a mole ratio of 1:1. A melting point of the co-crystal compound falls within a range of 124˜130° C., and the co-crystal compound can be prepared by an evaporation method or an anti-solvent method. The co-crystal compound comes with a non-hygroscopic property, a low burning rate (7 MPa, 0.58 mm/s) and a high pressure index (n>0.6), which can be used for replacing the oxidizer of a common gas generator propellant.
    Type: Application
    Filed: January 20, 2012
    Publication date: April 25, 2013
    Applicant: NATIONAL CENTRAL UNIVERSITY
    Inventors: Lee Tu, Jeng-Wei Chen