Patents by Inventor Choi Hye-Ok

Choi Hye-Ok 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 contact coating a microneedle array
    Patent number: 8414959
    Abstract: A method of coating a microneedle array by applying a coating fluid using a flexible film in a brush-like manner. A method of coating a microneedle array comprising: providing a microneedle array having a substrate and a plurality of microneedles; providing a flexible film; providing a coating solution comprising a carrier fluid and a coating material; applying the coating solution onto a first major surface of the flexible film; performing a transfer step of bringing the first major surface of the flexible film into contact with the microneedles and removing the flexible film from contact with the microneedles; and allowing the carrier fluid to evaporate.
    Type: Grant
    Filed: November 7, 2011
    Date of Patent: April 9, 2013
    Assignee: 3M Innovative Properties Company
    Inventors: Choi Hye-Ok, Gordon P. Knutson, Moses M. David
  • METHOD OF CONTACT COATING A MICRONEEDLE ARRAY
    Publication number: 20120114857
    Abstract: A method of coating a microneedle array by applying a coating fluid using a flexible film in a brush-like manner. A method of coating a microneedle array comprising: providing a microneedle array having a substrate and a plurality of microneedles; providing a flexible film; providing a coating solution comprising a carrier fluid and a coating material; applying the coating solution onto a first major surface of the flexible film; performing a transfer step of bringing the first major surface of the flexible film into contact with the microneedles and removing the flexible film from contact with the microneedles; and allowing the carrier fluid to evaporate.
    Type: Application
    Filed: November 7, 2011
    Publication date: May 10, 2012
    Inventors: Choi Hye-Ok, Gordon P. Knutson, Moses M. David