Patents by Inventor Huijin Li

Huijin Li 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).

  • Exposed lens retroreflective article
    Patent number: 9234990
    Abstract: An exposed lens retroreflective article that includes a binder layer; a layer of spaced apart optical elements that are partially embedded in the binder layer; a penetrated colored layer that is located between the spaced apart optical elements; and a reflective layer that is located functionally behind the layer of optical elements and the penetrated colored layer.
    Type: Grant
    Filed: September 18, 2014
    Date of Patent: January 12, 2016
    Assignee: 3M Innovative Properties Company
    Inventors: Ningyong Huang, Shane M. Klundt, Huijin Li, Loretta L. Lucas, Bradley R. Ray, Rong Wu
  • EXPOSED LENS RETROREFLECTIVE ARTICLE
    Publication number: 20150015955
    Abstract: An exposed lens retroreflective article that includes a binder layer; a layer of spaced apart optical elements that are partially embedded in the binder layer; a penetrated colored layer that is located between the spaced apart optical elements; and a reflective layer that is located functionally behind the layer of optical elements and the penetrated colored layer.
    Type: Application
    Filed: September 18, 2014
    Publication date: January 15, 2015
    Inventors: Ningyong Huang, Shane M. Klundt, Huijin Li, Loretta L. Lucas, Bradley R. Ray, Rong Wu
  • Exposed lens retroreflective article
    Patent number: 8851688
    Abstract: An exposed lens retroreflective article that includes a binder layer; a layer of spaced apart optical elements that are partially embedded in the binder layer; a penetrated colored layer that is located between the spaced apart optical elements; and a reflective layer that is located functionally behind the layer of optical elements and the penetrated colored layer.
    Type: Grant
    Filed: May 24, 2011
    Date of Patent: October 7, 2014
    Assignee: 3M Innovative Properties Company
    Inventors: Ningyong Huang, Shane M. Klundt, Huijin Li, Loretta L. Lucas, Bradley R. Ray, Rong Wu
  • EXPOSED LENS RETROREFLECTIVE ARTICLE
    Publication number: 20110292508
    Abstract: An exposed lens retroreflective article that includes a binder layer; a layer of spaced apart optical elements that are partially embedded in the binder layer; a penetrated colored layer that is located between the spaced apart optical elements; and a reflective layer that is located functionally behind the layer of optical elements and the penetrated colored layer.
    Type: Application
    Filed: May 24, 2011
    Publication date: December 1, 2011
    Inventors: Ningyong Huang, Shane M. Klundt, Huijin Li, Loretta L. Lucas, Bradley R. Ray, Rong Wu