Patents by Inventor Julian Hou Lima

Julian Hou Lima 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).

  • High temperature pressure sensitive devices and methods thereof
    Patent number: 7785704
    Abstract: A pressure sensitive device that provides a stable response to measure an applied force at temperatures greater than 150° F. (about 66° C.) is disclosed. The pressure sensitive device can have a conductivity of about 0.01 ?S to about 1300 ?S and a sensitivity of about 0.01 ?S/lb to about 300 ?S/lb (about 0.02 ?S/kg to about 660 ?S/kg) at about a temperature range of about ?50° F. to over about 400° F. or 420° F. (about ?45° C. to over about 205° C. or 216° C.). The pressure sensitive device can have a substrate of polyimide, conductive leads of silver dispersed in a polyhydroxy ether crosslinked with melamine formaldehyde, and a pressure sensitive layer of carbon nanoparticles dispersed in cured polyamic acid forming a polyimide.
    Type: Grant
    Filed: May 14, 2004
    Date of Patent: August 31, 2010
    Assignee: Tekscan, Inc.
    Inventors: Thomas Papakostas, Julian Hou Lima