Patents by Inventor Taib K. Ansera

Taib K. Ansera 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).

  • Semi-interpenetrating polymer network
    Patent number: 9056316
    Abstract: Semi-interpenetrating polymeric networks are described. More specifically, the semi-interpenetrating polymeric networks include at least two polymers that are closely associated. The first polymer is an ionic polymer that is not crosslinked. The second polymer is a cross-linked polymer that can be either another ionic polymer or a non-ionic polymer. Methods of making the semi-interpenetrating polymeric networks, articles containing the semi-interpenetrating polymeric networks, and methods of using the semi-interpenetrating polymeric networks are also described. The semi-interpenetrating polymeric networks can function as ion exchange resins.
    Type: Grant
    Filed: June 17, 2011
    Date of Patent: June 16, 2015
    Assignee: 3M INNOVATIVE PROPERTIES COMPANY
    Inventors: Del R. Lawson, James I. Hembre, Jerald K. Rasmussen, Catherine A. Bothof, Kannan Seshadri, Robert T. Fitzsimons, Jr., Andrew W. Rabins, Taib K. Ansera
  • SEMI-INTERPENETRATING POLYMER NETWORK
    Publication number: 20130090397
    Abstract: Semi-interpenetrating polymeric networks are described. More specifically, the semi-interpenetrating polymeric networks include at least two polymers that are closely associated. The first polymer is an ionic polymer that is not crosslinked. The second polymer is a cross-linked polymer that can be either another ionic polymer or a non-ionic polymer. Methods of making the semi-interpenetrating polymeric networks, articles containing the semi-interpenetrating polymeric networks, and methods of using the semi-interpenetrating polymeric networks are also described. The semi-interpenetrating polymeric networks can function as ion exchange resins.
    Type: Application
    Filed: June 17, 2011
    Publication date: April 11, 2013
    Applicant: 3M INNOVATIVE PROPERTIES COMPANY
    Inventors: Del R. Lawson, James I. Hembre, Jerald K. Rasmussen, Catherine A. Bothof, Kannan Seshadri, Robert T. Fitzsimons, JR., Andrew W. Rabins, Taib K. Ansera
  • Extraction articles and methods
    Patent number: 6492183
    Abstract: This invention provides a one-piece multilayer article for use in solid phase extraction that includes at least two porous support layers and a solid phase extraction medium, wherein the porous support layers are thermo-mechanically attached at at least one thermo-mechanical attachment site. At least one of the porous support layers can be a prefilter layer.
    Type: Grant
    Filed: March 13, 2001
    Date of Patent: December 10, 2002
    Assignee: 3M Innovative Properties Company
    Inventors: Craig A. Perman, Taib K. Ansera, Eric E. Wisted, Michael R. Berrigan, Jason R. Jacobson, Glen H. Bayer, Jr.