Patents by Inventor S. Kevin Lee

S. Kevin Lee 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 of hydrolytically stable bonding of elastomers to substrates
    Patent number: 9422409
    Abstract: Active devices such as pumps and mixers have been fabricated in plastic-PDMS hybrid devices. By utilizing functionalized bis-silane primers, bond strength between Polycarbonate or PMMA and PDMS improved in dry and aqueous environments. Plastic-primer-PDMS layers exposed to acid and base solutions at 70° C. for 2 hours showed no signs of delamination at 30 psi for pH ?1 to 15 and 60 psi for pH 0 to 15. A peristaltic pump fabricated in polycarbonate achieved consistent flow rates up to peristaltic cycle frequencies of 10 Hz in water, 1OM HCl, and 1OM NaOH solutions.
    Type: Grant
    Filed: October 9, 2009
    Date of Patent: August 23, 2016
    Assignee: MASSACHUSETTS INSTITUTE OF TECHNOLOGY
    Inventors: S. Kevin Lee, Harry Lee, J. Rajeev Ram
  • METHOD OF HYDROLYTICALLY STABLE BONDING OF ELASTOMERS TO SUBSTRATES
    Publication number: 20110195260
    Abstract: Active devices such as pumps and mixers have been fabricated in plastic-PDMS hybrid devices. By utilizing functionalized bis-silane primers, bond strength between Polycarbonate or PMMA and PDMS improved in dry and aqueous environments. Plastic-primer-PDMS layers exposed to acid and base solutions at 70° C. for 2 hours showed no signs of delamination at 30 psi for pH ?1 to 15 and 60 psi for pH 0 to 15. A peristaltic pump fabricated in polycarbonate achieved consistent flow rates up to peristaltic cycle frequencies of 10 Hz in water, 1OM HCl, and 1OM NaOH solutions.
    Type: Application
    Filed: October 9, 2009
    Publication date: August 11, 2011
    Inventors: S. Kevin Lee, Harry Lee, J. Rajeev Ram