Patents by Inventor Gary B. Hanson

Gary B. Hanson 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).

  • Color shifting film articles
    Patent number: 6797366
    Abstract: Multilayer polymeric films and other optical bodies are provided which is useful in making colored mirrors and polarizers. The films are characterized by a change in color as a function of viewing angle.
    Type: Grant
    Filed: July 1, 2002
    Date of Patent: September 28, 2004
    Assignee: 3M Innovative Properties Company
    Inventors: Gary B. Hanson, James M. Jonza, Andrew J. Ouderkirk, John A. Wheatley
  • Hand-holdable toy light tube
    Patent number: 6641280
    Abstract: Hand-holdable toy light tube comprising a handle, a light source and a tube of color shifting film. The light source is preferably disposed within an end of the handle. The tube of color shifting film extends from the end of the handle. During use, light from the light source interacts with the tube of color shifting film, producing a brilliant colored effect. Movement of the handle and thus of the tube of color shifting film produces multiple colors.
    Type: Grant
    Filed: September 26, 2001
    Date of Patent: November 4, 2003
    Assignee: 3M Innovative Properties Company
    Inventors: Gary B. Hanson, Michael F. Weber, Andrew J. Ouderkirk
  • Color shifting film
    Patent number: 6531230
    Abstract: Multilayer polymeric films and other optical bodies are provided which is useful in making colored mirrors and polarizers. The films are characterized by a highly uniform change in color as a function of viewing angle.
    Type: Grant
    Filed: January 13, 1998
    Date of Patent: March 11, 2003
    Assignee: 3M Innovative Properties Company
    Inventors: Michael F. Weber, Timothy J. Nevitt, William W. Merrill, Kelly M. Roscoe, Andrew J. Ouderkirk, John A. Wheatley, Gary B. Hanson, James M. Jonza, Jeffrey A. Boettcher, Yaoqi J. Liu, Terence D. Neavin
  • Color shifting film articles
    Publication number: 20030035972
    Abstract: Multilayer polymeric films and other optical bodies are provided which is useful in making colored mirrors and polarizers. The films are characterized by a change in color as a function of viewing angle.
    Type: Application
    Filed: July 1, 2002
    Publication date: February 20, 2003
    Applicant: 3M Innovative Properties Company
    Inventors: Gary B. Hanson, James M. Jonza, Andrew J. Ouderkirk, John A. Wheatley
  • Hand-holdable toy light tube
    Publication number: 20020008970
    Abstract: Hand-holdable toy light tube comprising a handle, a light source and a tube of color shifting film. The light source is preferably disposed within an end of the handle. The tube of color shifting film extends from the end of the handle. During use, light from the light source interacts with the tube of color shifting film, producing a brilliant colored effect. Movement of the handle and thus of the tube of color shifting film produces multiple colors.
    Type: Application
    Filed: September 26, 2001
    Publication date: January 24, 2002
    Applicant: 3M Innovative Properties Company
    Inventors: Gary B. Hanson, Michael F. Weber, Andrew J. Ouderkirk
  • Hand-holdable toy light tube with color changing film
    Patent number: 6082876
    Abstract: Hand-holdable toy light tube comprising a handle, a light source and a tube of color shifting film. The light source is preferably disposed within an end of the handle. The tube of color shifting film extends from the end of the handle. During use, light from the light source interacts with the tube of color shifting film, producing a brilliant colored effect. Movement of the handle and thus of the tube of color shifting film produces multiple colors.
    Type: Grant
    Filed: January 13, 1998
    Date of Patent: July 4, 2000
    Assignee: 3M Innovative Properties Company
    Inventors: Gary B. Hanson, Michael F. Weber, Andrew J. Ouderkirk
  • Reflective article with concealed retroreflective pattern
    Patent number: 6024455
    Abstract: A reflective article has a multilayer film covering a patterned retroreflective layer. In one embodiment the patterned retroreflective layer includes a separate indicia layer covering a retroreflective substrate. The indicia are substantially hidden under normal viewing conditions but easily detectable under retroreflective lighting conditions. Various types of retroreflective layers are disclosed. The article can also include microstructured relief patterns which produce holographic images under ambient lighting but which disappear under retroreflective conditions. The multilayer film includes alternating layers of at least a first and second polymer, and has a relatively high reflectivity for normally incident light within a first spectral range which is approximately coextensive with the visible spectrum, and a relatively low reflectance for normally incident light within a second spectral range.
    Type: Grant
    Filed: January 13, 1998
    Date of Patent: February 15, 2000
    Assignee: 3M Innovative Properties Company
    Inventors: Mark O'Neill, Michael F. Weber, Olester Benson, Jr., John A. Wheatley, James M. Jonza, Gary B. Hanson