Patents by Inventor Catherine A. Bothof

Catherine A. Bothof 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).

  • Publication number: 20110217752
    Abstract: Ligand functionalized substrates, methods of making ligand functionalized substrates, and methods of using functionalized substrates are disclosed.
    Type: Application
    Filed: February 14, 2011
    Publication date: September 8, 2011
    Inventors: Jerald K. Rasmussen, Kannan Seshadri, Robert T. Fitzsimons, JR., James I. Hembre, Catherine A. Bothof, Erin A. Satterwhite, George W. Griesgraber, Yi He, Louis C. Haddad
  • Publication number: 20110201078
    Abstract: Ligand functionalized substrates, methods of making ligand functionalized substrates, and methods of using functionalized substrates are disclosed.
    Type: Application
    Filed: January 7, 2011
    Publication date: August 18, 2011
    Inventors: Jerald K. Rasmussen, Catherine A. Bothof, Kannan Seshadri, Erin A. Satterwhite, Robert T. Fitzsimons, James I. Hembre, Mahfuza B. Ali
  • Publication number: 20110100916
    Abstract: Articles that contain a solid support with a grafted chain extending from the solid support, methods of making these articles, and various uses of the articles are described. More specifically, the grafted chain has a functional group that can react with or interact with target compound. Alternatively, the functional group on the grafted chain can react with a modifying agent to provide another group that can react with or interact with the target compound. The grafted chains are attached to the solid support through a ring-opened azlactone group. The articles can be used to purify the target compound or to separate the target compound from other molecules in a sample.
    Type: Application
    Filed: May 11, 2009
    Publication date: May 5, 2011
    Applicant: 3M INNOVATIVE PROPERTIES COMPANY
    Inventors: Simon K. Shannon, Catherine A. Bothof, Babu N. Gaddam, Jerald K. Rasmussen, Richard B. Ross
  • Publication number: 20110033633
    Abstract: Ligand functionalized substrates, methods of making ligand functionalized substrates, and methods of using functionalized substrates are disclosed.
    Type: Application
    Filed: May 26, 2009
    Publication date: February 10, 2011
    Inventors: Catherine A. Bothof, Yi He, Jerald K. Rasmussen, Kannan Seshadri, Clinton P. Waller, JR., Douglas E. Weiss
  • Publication number: 20110006007
    Abstract: Provided are filtration media, matrixes, and systems for liquid purification that utilize functional polymer particles. The functional polymer particles can comprise a cationic charge. Exemplary functional polymer particles comprise comprise [3-(methacryloylamino)propyl]-trimethylammonium chloride (MAPTAC) polymerized with trimethylolpropane trimethacrylate (TMPTMA).
    Type: Application
    Filed: December 19, 2008
    Publication date: January 13, 2011
    Inventors: Gokhan Kuruc, Marjorie Bucholz, Todd E. Arnold, Robert T. Fitzsimons, JR., Kannan Seshadri, Steven M. Heilmann, Andrew W. Rabins, Catherine A. Bothof
  • Publication number: 20100320138
    Abstract: A grafted nonwoven substrate is disclosed having average fiber sizes of 0.7 to 15 microns, and a void volume of 50 to 95%, and a polymer comprising anionic monomer units grafted to the surface of the nonwoven substrate. The article may be used as a filter element to purify or separate target materials, such as monoclonal antibodies (MAb), from a fluid mixture.
    Type: Application
    Filed: June 21, 2010
    Publication date: December 23, 2010
    Inventors: Clinton P. Waller, JR., Douglas E. Weiss, Catherine A. Bothof, Kannan Seshadri
  • Publication number: 20100155323
    Abstract: A grafted nonwoven substrate is disclosed having average fiber sizes of 0.7 to 15 microns, and a void volume of 50 to 95%, and a polymer comprising cationic aminoalkyl(meth)acryloyl monomer units grafted to the surface of the nonwoven substrate. The article may be used as a filter element to purify or separate target materials, such as oligonucleotides or monoclonal antibodies (MAb), from a fluid mixture.
    Type: Application
    Filed: November 18, 2009
    Publication date: June 24, 2010
    Inventors: Douglas E. Weiss, Clinton P. Waller, JR., Michael R. Berrigan, Andrew W. Rabins, Jeffrey A. Lucas, Kannan Seshadri, Catherine A. Bothof
  • Patent number: 7727710
    Abstract: The present invention provides materials, methods, and kits for reducing nonspecific binding of molecules to a surface, particularly in a solid phase material, and more specifically a solid phase material that includes a hydrophobic portion, by contacting the solid phase material with a fluorinated nonionic surfactant comprising two or more fluorinated hydrophobic segments and one or more hydrophilic segments.
    Type: Grant
    Filed: March 26, 2004
    Date of Patent: June 1, 2010
    Assignee: 3M Innovative Properties Company
    Inventors: Louis C. Haddad, Barbara C. Swenson, Catherine A. Bothof, Madhusudan Raghavachari
  • Publication number: 20050142563
    Abstract: The present invention provides materials, methods, and kits for reducing nonspecific binding of molecules to a surface, particularly in a solid phase material, and more specifically a solid phase material that includes a hydrophobic portion, by contacting the solid phase material with a fluorinated nonionic surfactant comprising two or more fluorinated hydrophobic segments and one or more hydrophilic segments.
    Type: Application
    Filed: March 26, 2004
    Publication date: June 30, 2005
    Inventors: Louis Haddad, Barbara Swenson, Catherine Bothof, Madhusudan Raghavachari