Patents by Inventor Ponchivy Tan

Ponchivy Tan 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).

  • Conductive sealant compositions
    Patent number: 9484123
    Abstract: Embodiments of the present disclosure are directed to sealant compositions including a base composition with at least one sulfur-containing polymer, a curing agent composition, and an electrically conductive filler including carbon nanotubes and stainless steel fibers. The electrically conductive filler can be in either or both of the base composition and the curing agent composition. The sealant compositions are substantially Ni-free and exhibit unexpectedly superior EMI/RFI shielding effectiveness.
    Type: Grant
    Filed: September 10, 2012
    Date of Patent: November 1, 2016
    Assignee: PRC-DeSoto International, Inc.
    Inventors: Ahmed Sharaby, Ponchivy Tan
  • CONDUCTIVE SEALANT COMPOSITIONS
    Publication number: 20130082214
    Abstract: Embodiments of the present disclosure are directed to sealant compositions comprising a base composition comprising at least one sulfur-containing polymer, and an electrically conductive filler comprising carbon nanotubes and conductive carbon black; and a curing agent composition. The sealant compositions are substantially Ni-free, are particularly useful in lightning strike applications, and exhibit unexpectedly superior tensile elongation and low specific gravity.
    Type: Application
    Filed: September 10, 2012
    Publication date: April 4, 2013
    Applicant: PRC-DeSoto International, Inc.
    Inventors: Ahmed Sharaby, Ponchivy Tan
  • CONDUCTIVE SEALANT COMPOSITIONS
    Publication number: 20130075668
    Abstract: Embodiments of the present disclosure are directed to sealant compositions including a base composition with at least one sulfur-containing polymer, a curing agent composition, and an electrically conductive filler including carbon nanotubes and stainless steel fibers. The electrically conductive filler can be in either or both of the base composition and the curing agent composition. The sealant compositions are substantially Ni-free and exhibit unexpectedly superior EMI/RFI shielding effectiveness.
    Type: Application
    Filed: September 10, 2012
    Publication date: March 28, 2013
    Applicant: PRC-Desoto International, Inc.
    Inventors: Ahmed Sharaby, Ponchivy Tan