Patents by Inventor Charles Leir

Charles Leir 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: 20230241287
    Abstract: Silicone polyurea block copolymers are prepared by copolymerizing: (a) a diamine composition that includes a polyethylene glycol diamine, and optionally, a dipiperidyl alkane; (b) a monofunctional silicone isocyanate; and (c) a diisocyanate. Compositions useful as passivating coatings comprising the block copolymer are also provided, and substrates coated with the compositions. Methods of preparing and using the compositions are also described.
    Type: Application
    Filed: April 11, 2023
    Publication date: August 3, 2023
    Inventors: Kristin Taton, Patrick Guire, Charles Leir
  • Patent number: 11672884
    Abstract: Silicone polyurea block copolymers are prepared by copolymerizing: (a) a diamine composition that includes a polyethylene glycol diamine, and optionally, a dipiperidyl alkane; (b) a monofunctional silicone isocyanate; and (c) a diisocyanate. Compositions useful as passivating coatings comprising the block copolymer are also provided, and substrates coated with the compositions. Methods of preparing and using the compositions are also described.
    Type: Grant
    Filed: December 11, 2018
    Date of Patent: June 13, 2023
    Assignee: Innovative Surface Technologies, Inc.
    Inventors: Kristin Taton, Patrick Guire, Charles Leir
  • Publication number: 20200405909
    Abstract: Silicone polyurea block copolymers are prepared by copolymerizing: (a) a diamine composition that includes a polyethylene glycol diamine, and optionally, a dipiperidyl alkane; (b) a monofunctional silicone isocyanate; and (c) a diisocyanate. Compositions useful as passivating coatings comprising the block copolymer are also provided, and substrates coated with the compositions. Methods of preparing and using the compositions are also described.
    Type: Application
    Filed: December 11, 2018
    Publication date: December 31, 2020
    Applicant: Innovative Surface Technologies, Inc.
    Inventors: Kristin Taton, Patrick Guire, Charles Leir
  • Publication number: 20070190662
    Abstract: Acoustic sensors, preferably surface acoustic wave sensors, and more preferably shear horizontal surface acoustic wave sensors that include soluble mixed with oligomers and/or polymers formed from such monomers), or multifunctional compounds, for example, that can function as either waveguide materials, immobilization materials for secondary capture agents (e.g., antibodies), or both.
    Type: Application
    Filed: December 17, 2004
    Publication date: August 16, 2007
    Inventors: John Baetzold, Karl Benson, G. Bommarito, Michael Daniels, Albert Everaerts, Peggy-Jean Flanigan, M. Free, Cary Kipke, Brinda Lakshmi, Charles Leir, George Moore, Lang Nguyen, Rahul Shah, Peter Stark
  • Publication number: 20070180997
    Abstract: An electret filter media that includes a thermoplastic resin and a compound of the formula Y2-A(R1)n—Y1, where A is benzene, naphthalene or anthracene, Y1 and Y2 are each independently R2-R3, R2 is an ester linking group or an amide linking group, R3 is an alkyl group having from 10 to 22 carbon atoms, R1 is R2-R3 where R2 and R3 are each independently as defined above, and when A is benzene, n is from 0 to 4, when A is naphthalene, n is from 0 to 6, and when A is anthracene, n is from 0 to 8.
    Type: Application
    Filed: February 9, 2006
    Publication date: August 9, 2007
    Inventors: Charles Leir, Rahul Shah, Karl Benson
  • Publication number: 20070177273
    Abstract: A composite film includes a first film and a second film contiguous to the first film. The first film includes a light transmissive material. In one embodiment, the second film includes a polydiorganosiloxane polyamide block copolymer. In another embodiment, the second film includes a polydiorganosiloxane polyoxamide block copolymer.
    Type: Application
    Filed: December 21, 2006
    Publication date: August 2, 2007
    Inventors: Karl Benson, Richard Hansen, Stephen Johnson, Charles Leir, Richard Liu, Mark Purgett, Hildegard Schneider, Audrey Sherman
  • Publication number: 20070177272
    Abstract: A multilayer film includes a first layer of a first polymeric material and a second layer of a second polymeric material. The first material has a first index of refraction and the second material has a second index of refraction less than the first index of refraction. In one embodiment, the second material includes a polydiorganosiloxane polyamide block copolymer. In another embodiment, the second material includes a polydiorganosiloxane polyoxamide block copolymer.
    Type: Application
    Filed: December 21, 2006
    Publication date: August 2, 2007
    Inventors: Karl Benson, Richard Hansen, Stephen Johnson, Charles Leir, Richard Liu, Mark Purgett, Hildegard Schneider, Audrey Sherman
  • Publication number: 20070154937
    Abstract: Compounds having two reactive functional groups are described that can be used as a tethering compound to immobilize an amine-containing material to a substrate. The first reactive functional group can be used to provide attachment to a surface of a substrate. The second reactive functional group is a N-sulfonyldicarboximide group that can be reacted with an amine-containing material, particularly a primary aliphatic amine, to form a connector group between the substrate and the amine-containing material. The invention also provides articles and methods for immobilizing amine-containing materials to a substrate.
    Type: Application
    Filed: March 14, 2007
    Publication date: July 5, 2007
    Inventors: Karl Benson, Moses David, Cary Kipke, Brinda Lakshmi, Charles Leir, George Moore, Rahul Shah
  • Publication number: 20070149745
    Abstract: Polydiorganosiloxane-containing materials having at least two oxalylamino groups and methods of making such materials are described.
    Type: Application
    Filed: December 23, 2005
    Publication date: June 28, 2007
    Inventors: Charles Leir, Karl Benson, Richard Hansen, Mark Purgett, Albert Everaerts
  • Publication number: 20070148474
    Abstract: Polydiorganosiloxane polyoxamide, linear, block copolymers and methods of making the copolymers are provided. The method of making the copolymers involves reacting a diamine with a precursor having at least one polydiorganosiloxane segment and at least two oxalyamino groups. The polydiorganosiloxane polyoxamide block copolymers are of the (AB)n type.
    Type: Application
    Filed: December 23, 2005
    Publication date: June 28, 2007
    Inventors: Charles Leir, Karl Benson, Richard Hansen, Mark Purgett, Albert Everaerts, Audrey Sherman
  • Publication number: 20070148475
    Abstract: Polydiorganosiloxane polyoxamide, linear, block copolymers and methods of making the copolymers are provided. The method of making the copolymers involves reacting a diamine with a polydiorganosiloxane precursor having oxalylamino groups. The polydioroganosiloxane polyoxamide block copolymers are of the (AB)n type.
    Type: Application
    Filed: December 23, 2005
    Publication date: June 28, 2007
    Inventors: Audrey Sherman, Richard Hansen, Wendi Winkler, Charles Leir, Mieczyslaw Mazurek, Karl Benson, Mark Purgett, Albert Everaerts
  • Publication number: 20070078242
    Abstract: Crosslinked polymeric materials are described that contain pendant amine capture groups. The amine capture groups include N-sulfonylaminocarbonyl groups that can react with amine-containing materials by a nucleophilic displacement reaction. Reaction mixtures used to prepare the crosslinked polymeric materials, articles containing the crosslinked polymeric materials, methods of making articles, and methods of immobilizing an amine-containing material are also described.
    Type: Application
    Filed: September 30, 2005
    Publication date: April 5, 2007
    Inventors: Charles Leir, George Moore, Rahul Shah, Karl Benson
  • Publication number: 20070078243
    Abstract: Crosslinked polymeric materials are described that contain pendant amine capture groups. The amine capture groups include N-sulfonyldicarboximide groups that can react with amine-containing materials by a ring opening reaction. Reaction mixtures used to prepare the crosslinked polymeric materials, articles containing the crosslinked polymeric materials, methods of making articles, and methods of immobilizing an amine-containing material are also described.
    Type: Application
    Filed: September 30, 2005
    Publication date: April 5, 2007
    Inventors: George Moore, Rahul Shah, Karl Benson, Charles Leir
  • Publication number: 20070078244
    Abstract: Crosslinked polymeric materials are described that contain pendant amine capture groups. The amine capture groups include N-sulfonyldicarboximide groups that can react with amine-containing materials by a ring opening reaction. Reaction mixtures used to prepare the crosslinked polymeric materials, articles containing the crosslinked polymeric materials, methods of making articles, and methods of immobilizing an amine-containing material are also described.
    Type: Application
    Filed: September 30, 2005
    Publication date: April 5, 2007
    Inventors: Rahul Shah, Karl Benson, Charles Leir, George Moore
  • Publication number: 20070045622
    Abstract: Compounds having two reactive functional groups are described that can be used to provide a connector group between a substrate and an amine-containing material. The first reactive functional group can be used to provide attachment to a surface of a substrate. The second reactive functional group is a N-sulfonylaminocarbonyl group that can be reacted with an amine-containing material, particularly a primary aliphatic amine, to form a carbonylimino-containing connector group. The invention also provides articles and methods for immobilizing amine-containing materials to a substrate.
    Type: Application
    Filed: October 27, 2006
    Publication date: March 1, 2007
    Inventors: Karl Benson, Moses David, Cary Kipke, Brinda Lakshmi, Charles Leir, George Moore, Rahul Shah
  • Publication number: 20060135783
    Abstract: Multifunctional compounds having acylsulfonamide amine-reactive groups are described that can be used for the capture of amine containing materials.
    Type: Application
    Filed: December 17, 2004
    Publication date: June 22, 2006
    Inventors: Karl Benson, Cary Kipke, Brinda Lakshmi, Charles Leir, George Moore, Rahul Shah
  • Publication number: 20060135718
    Abstract: Soluble polymers and methods for the preparation thereof, wherein the polymers of the present invention have pendant acylsulfonamide amine-reactive groups that can be used for the capture of amine containing materials.
    Type: Application
    Filed: December 17, 2004
    Publication date: June 22, 2006
    Inventors: Karl Benson, G. Bommarito, Albert Everaerts, Brinda Lakshmi, Charles Leir, George Moore, Lang Nguyen, Rahul Shah, Peter Stark
  • Publication number: 20050227076
    Abstract: Compounds having two reactive functional groups are described that can be used as a tethering compound to immobilize an amine-containing material to a substrate. The first reactive functional group can be used to provide attachment to a surface of a substrate. The second reactive functional group is a N-sulfonyldicarboximide group that can be reacted with an amine-containing material, particularly a primary aliphatic amine, to form a connector group between the substrate and the amine-containing material. The invention also provides articles and methods for immobilizing amine-containing materials to a substrate.
    Type: Application
    Filed: November 12, 2004
    Publication date: October 13, 2005
    Inventors: Karl Benson, Moses David, Cary Kipke, Brinda Lakshmi, Charles Leir, George Moore, Rahul Shah
  • Publication number: 20050112672
    Abstract: Compounds having two reactive functional groups are described that can be used to provide a connector group between a substrate and an amine-containing material. The first reactive functional group can be used to provide attachment to a surface of a substrate. The second reactive functional group is a N-sulfonylaminocarbonyl group that can be reacted with an amine-containing material, particularly a primary aliphatic amine, to form a carbonylimino-containing connector group. The invention also provides articles and methods for immobilizing amine-containing materials to a substrate.
    Type: Application
    Filed: November 12, 2004
    Publication date: May 26, 2005
    Inventors: Karl Benson, Moses David, Cary Kipke, Brinda Lakshmi, Charles Leir, George Moore, Rahul Shah
  • Publication number: 20050106709
    Abstract: Compounds having two reactive functional groups are described that can be used as a tethering compound to immobilize an amine-containing material to a substrate. The first reactive functional group can be used to provide attachment to a surface of a substrate. The second reactive functional group is a N-sulfonyldicarboximide group that can be reacted with an amine-containing material, particularly a primary aliphatic amine, to form a connector group between the substrate and the amine-containing material. The invention also provides articles and methods for immobilizing amine-containing materials to a substrate.
    Type: Application
    Filed: November 14, 2003
    Publication date: May 19, 2005
    Inventors: Karl Benson, Moses David, Cary Kipke, Brinda Lakshmi, Charles Leir, George Moore, Rahul Shah