Patents by Inventor Kenneth Callahan

Kenneth Callahan 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).

  • Adhesives and Release Liners with Pyramidal Structures
    Publication number: 20060240225
    Abstract: An adhesive article includes a release liner and an adhesive layer on the surface of the release liner. The release liner has a surface with an arrangement of structures thereon, wherein the structures extend downward from a plane of the surface. The structures have at least three sidewalls. A first sidewall makes an angle with respect to the plane of the surface of greater than about 0° and less than 90° and a second sidewall makes an angle with respect to the plane of the surface of greater than 0° and less than about 90°. The first sidewall angle differs from the second sidewall angle by more than about 10°.
    Type: Application
    Filed: June 30, 2006
    Publication date: October 26, 2006
    Inventors: Kenneth Callahan, Yaoqi Liu
  • Patterned adhesives for tamper evident feature
    Publication number: 20060234014
    Abstract: An article is disclosed that includes a first substrate, and an adhesive layer disposed between on the first substrate. The adhesive layer includes a first adhesive region having a first adhesive and a second adhesive region having a second adhesive. The first adhesive is different from the second adhesive. The first adhesive region forms indicia. Methods of making and using the article are also disclosed.
    Type: Application
    Filed: April 14, 2005
    Publication date: October 19, 2006
    Inventors: Yaoqi Liu, Jeffrey Tokle, Kenneth Callahan, Kevin Schaffer
  • Patterned adhesives for color shifting effect
    Publication number: 20060234040
    Abstract: An article is disclosed that includes a color shifting film having a film surface and an adhesive layer disposed on the color shifting film surface. The adhesive layer includes a first adhesive region having a first colorant and a second adhesive region. Methods of making and using the article are also disclosed.
    Type: Application
    Filed: April 14, 2005
    Publication date: October 19, 2006
    Inventors: Yaoqi Liu, Jeffrey Tokie, Kenneth Callahan, Kevin Schaffer
  • Optical film
    Publication number: 20060057367
    Abstract: An optical film includes an optical substrate and an adhesive first surface disposed on the optical substrate. The adhesive includes siloxane moieties at a siloxane-rich second surface of the adhesive. The adhesive increases adhesion when placed in contact with a second substrate over time. Optical film methods are also disclosed.
    Type: Application
    Filed: September 14, 2004
    Publication date: March 16, 2006
    Inventors: Audrey Sherman, Mieczyslaw Mazurek, Wendi Winkler, Cristina Thomas, Kenneth Callahan, David Erismann, Raghunath Padiyath, Lyudmila Pekurovsky
  • Curable adhesive articles having topographical features therein
    Publication number: 20050227031
    Abstract: Curable adhesive articles having topographical features and methods of making curable adhesive articles are disclosed.
    Type: Application
    Filed: May 28, 2003
    Publication date: October 13, 2005
    Inventors: Jie Yang, Kenneth Callahan, Ying-Yuh Lu, Yaoqi Liu
  • Adhesives and release liners with pyramidal structures
    Publication number: 20050013958
    Abstract: An adhesive article includes a release liner and an adhesive layer on the surface of the release liner. The release liner has a surface with an arrangement of structures thereon, wherein the structures extend downward from a plane of the surface. The structures have at least three sidewalls. A first sidewall makes an angle with respect to the plane of the surface of greater than about 0° and less than 90° and a second sidewall makes an angle with respect to the plane of the surface of greater than 0° and less than about 90°. The first sidewall angle differs from the second sidewall angle by more than about 10°.
    Type: Application
    Filed: July 17, 2003
    Publication date: January 20, 2005
    Inventors: Kenneth Callahan, Yaoqi Liu