Patents by Inventor Kannan Seshadri

Kannan Seshadri 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).

  • Patent number: 10005814
    Abstract: Ligand functionalized substrates, methods of making ligand functionalized substrates, and methods of using functionalized substrates are disclosed.
    Type: Grant
    Filed: May 10, 2017
    Date of Patent: June 26, 2018
    Assignee: 3M Innovative Properties Company
    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
  • Patent number: 9758547
    Abstract: Ligand functionalized substrates, methods of making ligand functionalized substrates, and methods of using functionalized substrates are disclosed.
    Type: Grant
    Filed: March 21, 2013
    Date of Patent: September 12, 2017
    Assignee: 3M Innovative Properties Company
    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: 20170241193
    Abstract: The present disclosure generally relates to adjustably sized air filter systems capable of use in a window opening. The present disclosure also related to methods of making and using these adjustably sized air filter systems.
    Type: Application
    Filed: August 24, 2015
    Publication date: August 24, 2017
    Inventors: Andrew R. Fox, Nicolas A. Echeverri, Jonathan M. Lise, Changwen Li, Liang Cheng, Kannan Seshadri
  • Publication number: 20170240591
    Abstract: Ligand functionalized substrates, methods of making ligand functionalized substrates, and methods of using functionalized substrates are disclosed.
    Type: Application
    Filed: May 10, 2017
    Publication date: August 24, 2017
    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
  • Patent number: 9725545
    Abstract: Porous polymeric resins, reaction mixtures and methods that can be used to prepare the porous polymeric resins, and uses of the porous polymeric resin are described. More specifically, the polymeric resins typically have a hierarchical porous structure plus reactive groups that can be used to interact with or react with a variety of different target compounds. The reactive groups can be selected from an acidic group or a salt thereof, an amino group or salt thereof, a hydroxyl group, an azlactone group, a glycidyl group, or a combination thereof.
    Type: Grant
    Filed: March 11, 2014
    Date of Patent: August 8, 2017
    Assignee: 3M INNOVATIVE PROPERTIES COMPANY
    Inventors: Peter D. Wickert, Simon K. Shannon, Kannan Seshadri, Jerald K. Rasmussen, James I. Hembre, Robert T. Fitzsimons, Jr.
  • Publication number: 20170217880
    Abstract: Ligand functionalized substrates, methods of making ligand functionalized substrates, and methods of using functionalized substrates are disclosed.
    Type: Application
    Filed: April 12, 2017
    Publication date: August 3, 2017
    Inventors: Catherine A. Bothof, Yi He, Jerald K. Rasmussen, Kannan Seshadri, Clinton P. Waller, JR., Douglas E. Weiss
  • Publication number: 20170144111
    Abstract: Asymmetric articles are described including a porous substrate with two opposing major surfaces and a porous structure extending between the surfaces, and a polymeric coating on one of the major surfaces and extending into the porous structure to a depth of the porous structure. Methods for making an asymmetric composite article are also provided, including providing a porous substrate, treating the porous substrate with a plasma treatment or a corona treatment from one major surface to a depth of the porous structure between the two major surfaces. The method further includes applying a coating solution to the treated porous substrate and drying the coating solution to form a composite asymmetric composite article having a polymeric coating on one major surface and extending into the porous structure to the depth of the treated porous structure.
    Type: Application
    Filed: June 30, 2015
    Publication date: May 25, 2017
    Inventors: Michelle M. Mok, Kannan Seshadri, Moses M. David, Seth M. Kirk, Daniel Carvajal
  • Publication number: 20170136139
    Abstract: A fragrance dispenser for emitting fragrance into an airstream impinging on an air filter, the dispenser having a receptacle with an open end that faces toward the air filter and that has a porous diffuser layer occlusively overlying the open end of the receptacle.
    Type: Application
    Filed: July 14, 2015
    Publication date: May 18, 2017
    Inventors: Kannan Seshadri, Neeraj Sharma, Le'Bron K. Patterson, Jeffrey M. Imsande, Nicolas A. Echeverri, Joon Chatterjee
  • Patent number: 9650470
    Abstract: Ligand functionalized substrates, methods of making ligand functionalized substrates, and methods of using functionalized substrates are disclosed.
    Type: Grant
    Filed: August 25, 2014
    Date of Patent: May 16, 2017
    Assignee: 3M Innovative Properties Company
    Inventors: Catherine A. Bothof, Yi He, Jerald K. Rasmussen, Kannan Seshadri, Clinton P. Waller, Jr., Douglas E. Weiss
  • Patent number: 9492771
    Abstract: Polyethyleneimine and polyalkylene biguanide ligand functionalized substrates, methods of making ligand functionalized substrates, and methods of using functionalized substrates are disclosed.
    Type: Grant
    Filed: September 18, 2009
    Date of Patent: November 15, 2016
    Assignee: 3M Innovative Properties Company
    Inventors: Mark R. Etzel, Kannan Seshadri, Jerald K. Rasmussen, Clinton P. Waller, Jr., Douglas E. Weiss, Yi He
  • Patent number: 9447309
    Abstract: This disclosure provides novel adhesive compositions comprising a highly crosslinked and plasticized low Tg (meth)acrylic copolymer that are self-wetting when applied to a substrate, and peelable therefrom.
    Type: Grant
    Filed: June 16, 2014
    Date of Patent: September 20, 2016
    Assignee: 3M Innovative Properties Company
    Inventors: Ann R. Fornof, James P. DiZio, George J. Clements, Jonathan E. Janoski, Kevin M. Lewandowski, Michael B. Runge, Kannan Seshadri
  • Publication number: 20160263515
    Abstract: The present disclosure generally relates to air filters expandable from a collapsed arrangement to an expanded, end-use arrangement and to methods of making, using, and installing such air filters. Some embodiments relate to an air filter having an expanded state and a collapsed state. The air filter includes a filter media assembly including (1) filter media including a plurality of pleats, (2) first and second opposing sides, and (3) first and second opposing ends. The air filter also includes a shape retention structure capable of being connected to at least a portion of the filter media assembly and capable of retention the filter media assembly in the expanded state. A spacing distance between adjacent pleats in the filter media is greater in the expanded state of the air filter than in the collapsed state of the air filter. In some embodiments, the air filter is an HVAC air filter.
    Type: Application
    Filed: February 10, 2016
    Publication date: September 15, 2016
    Inventors: Zhiqun Zhang, Andrew R. Fox, Matthew T. Scholz, Gene B. Portelli, Nicolas A. Echeverri, Amanda B. Dauphinais, Leonard M. Martinez, Stephen M. Sanocki, Kannan Seshadri
  • Publication number: 20160152662
    Abstract: A substrate comprising a crosslinked polymer primer layer, and grafted thereto a ligand-functionalized polymer is provided. The grafted polymer has the requisite affinity for binding neutral or negatively charged biomaterials, such as cells, cell debris, bacteria, spores, viruses, nucleic acids, and proteins, at pH's near or below the pI's of the biomaterials.
    Type: Application
    Filed: February 8, 2016
    Publication date: June 2, 2016
    Inventors: Jerald K. Rasmussen, Catherine A. Bothof, Kannan Seshadri, James I. Hembre, Robert T. Fitzsimons, JR., George W. Griesgraber, Yi He
  • Publication number: 20160144312
    Abstract: A nestable framed pleated air filter, including a non-self-supporting, compressible, pleated air filter media with a plurality of oppositely-facing pleats and with a plurality of upstream pleat tips and downstream pleat tips and downstream pleat valleys, the pleated air filter media further including a plurality of bridging filaments that are bonded to at least some of the upstream pleat tips. The filter includes a frame with sidewalls that are angled so that the framed pleated air filter is nestable.
    Type: Application
    Filed: January 28, 2016
    Publication date: May 26, 2016
    Inventors: Andrew R. Fox, Jonathan M. Lise, John J. Rogers, Stephen M. Sanocki, Kannan Seshadri
  • Publication number: 20160130482
    Abstract: This disclosure provides novel adhesive compositions comprising a highly crosslinked and plasticized low Tg (meth)acrylic copolymer that are self-wetting when applied to a substrate, and peelable therefrom.
    Type: Application
    Filed: June 16, 2014
    Publication date: May 12, 2016
    Inventors: Ann R. Fornof, James P. DiZio, George J. Clements, Jonathan E. Janoski, Kevin M. Lewandowski, Michael B. Runge, Kannan Seshadri
  • Patent number: 9302208
    Abstract: Polyethyleneimine and polyalkylene biguanide ligand functionalized substrates, methods of making ligand functionalized substrates, and methods of using functionalized substrates are disclosed.
    Type: Grant
    Filed: September 9, 2013
    Date of Patent: April 5, 2016
    Assignee: 3M Innovative Properties Company
    Inventors: Kannan Seshadri, Jerald K. Rasmussen, Clinton P. Waller, Jr., Douglas E. Weiss, Yi He
  • Patent number: 9296847
    Abstract: Ligand functionalized substrates, methods of making ligand functionalized substrates, and methods of using functionalized substrates are disclosed.
    Type: Grant
    Filed: January 20, 2015
    Date of Patent: March 29, 2016
    Assignee: 3M Innovative Properties Company
    Inventors: Jerald K. Rasmussen, Catherine A. Bothof, Kannan Seshadri, Erin A. Satterwhite, Robert T. Fitzsimons, Jr., James L. Hembre, Mahfuza B. Ali
  • Patent number: 9278301
    Abstract: A nestable framed pleated air filter, including a non-self-supporting, compressible, pleated air filter media with a plurality of oppositely-facing pleats and with a plurality of upstream pleat tips and downstream pleat tips and downstream pleat valleys, the pleated air filter media further including a plurality of bridging filaments that are bonded to at least some of the upstream pleat tips. The filter includes a frame with sidewalls that are angled so that the framed pleated air filter is nestable.
    Type: Grant
    Filed: August 16, 2013
    Date of Patent: March 8, 2016
    Assignee: 3M Innovative Properties Company
    Inventors: Andrew R. Fox, Jonathan M. Lise, John J. Rogers, Stephen M. Sanocki, Kannan Seshadri
  • Patent number: 9272246
    Abstract: A substrate comprising a crosslinked polymer primer layer, and grafted thereto a ligand-functionalized polymer is provided. The grafted polymer has the requisite affinity for binding neutral or negatively charged biomaterials, such as cells, cell debris, bacteria, spores, viruses, nucleic acids, and proteins, at pH's near or below the pI's of the biomaterials.
    Type: Grant
    Filed: January 19, 2012
    Date of Patent: March 1, 2016
    Assignee: 3M INNOVATIVE PROPERTIES COMPANY
    Inventors: Jerald K. Rasmussen, Catherine A. Bothof, Kannan Seshadri, James I. Hembre, Robert T. Fitzsimons, Jr., George W. Griesgraber, Yi He
  • Patent number: D766416
    Type: Grant
    Filed: July 17, 2015
    Date of Patent: September 13, 2016
    Assignee: 3M INNOVATIVE PROPERTIES COMPANY
    Inventors: Kannan Seshadri, Le'Bron K. Patterson, Nicolas A. Echeverri