Patents by Inventor Gordon Kennard

Gordon Kennard 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: 10369085
    Abstract: Dental cement compositions (including two-part compositions), kits, and related methods are used for bonding a dental prosthetic appliance to a tooth. A first part includes an amine activator component and a zinc oxide reactive filler, while a second part includes a polymerization initiator (e.g., benzoyl peroxide) and a polymerizable component having a structure including at least one acrylate or methacrylate group at one end and a carboxylic acid group at another end. A temporary cement composition advantageously exhibits reduced compressive and/or bonding strength relative to permanent cement compositions, which provides sufficient strength to facilitate normal use of the teeth while the provisional appliance is in use, while also facilitating easy removal of the provisional appliance for replacement with a permanent appliance at a later time.
    Type: Grant
    Filed: January 30, 2018
    Date of Patent: August 6, 2019
    Assignee: ULTRADENT PRODUCTS, INC.
    Inventors: Gordon Kennard, Andy T. Kawamoto, Jeff Wagner
  • Publication number: 20180153775
    Abstract: Dental cement compositions (including two-part compositions), kits, and related methods are used for bonding a dental prosthetic appliance to a tooth. A first part includes an amine activator component and a zinc oxide reactive filler, while a second part includes a polymerization initiator (e.g., benzoyl peroxide) and a polymerizable component having a structure including at least one acrylate or methacrylate group at one end and a carboxylic acid group at another end. A temporary cement composition advantageously exhibits reduced compressive and/or bonding strength relative to permanent cement compositions, which provides sufficient strength to facilitate normal use of the teeth while the provisional appliance is in use, while also facilitating easy removal of the provisional appliance for replacement with a permanent appliance at a later time.
    Type: Application
    Filed: January 30, 2018
    Publication date: June 7, 2018
    Inventors: Gordon Kennard, Andy T. Kawamoto, Jeff Wagner
  • Patent number: 9907732
    Abstract: Dental cement compositions (including two-part compositions), kits, and related methods are used for bonding a dental prosthetic appliance to a tooth. A first part includes an amine activator component and a zinc oxide reactive filler, while a second part includes a polymerization initiator (e.g., benzoyl peroxide) and a polymerizable component having a structure including at least one acrylate or methacrylate group at one end and a carboxylic acid group at another end. A temporary cement composition advantageously exhibits reduced compressive and/or bonding strength relative to permanent cement compositions, which provides sufficient strength to facilitate normal use of the teeth while the provisional appliance is in use, while also facilitating easy removal of the provisional appliance for replacement with a permanent appliance at a later time.
    Type: Grant
    Filed: December 13, 2016
    Date of Patent: March 6, 2018
    Assignee: Ultradent Products, Inc.
    Inventors: Gordon Kennard, Andy T. Kawamoto, Jeff Wagner
  • Publication number: 20170087061
    Abstract: Dental cement compositions (including two-part compositions), kits, and related methods are used for bonding a dental prosthetic appliance to a tooth. A first part includes an amine activator component and a zinc oxide reactive filler, while a second part includes a polymerization initiator (e.g., benzoyl peroxide) and a polymerizable component having a structure including at least one acrylate or methacrylate group at one end and a carboxylic acid group at another end. A temporary cement composition advantageously exhibits reduced compressive and/or bonding strength relative to permanent cement compositions, which provides sufficient strength to facilitate normal use of the teeth while the provisional appliance is in use, while also facilitating easy removal of the provisional appliance for replacement with a permanent appliance at a later time.
    Type: Application
    Filed: December 13, 2016
    Publication date: March 30, 2017
    Inventors: Gordon Kennard, Andy T. Kawamoto, Jeff Wagner
  • Patent number: 9549880
    Abstract: Dental cement compositions (including two-part compositions), kits, and related methods are used for bonding a dental prosthetic appliance to a tooth. A first part includes an amine activator component and a zinc oxide reactive filler, while a second part includes a polymerization initiator (e.g., benzoyl peroxide) and a polymerizable component having a structure including at least one acrylate or methacrylate group at one end and a carboxylic acid group at another end. A temporary cement composition advantageously exhibits reduced compressive and/or bonding strength relative to permanent cement compositions, which provides sufficient strength to facilitate normal use of the teeth while the provisional appliance is in use, while also facilitating easy removal of the provisional appliance for replacement with a permanent appliance at a later time.
    Type: Grant
    Filed: January 7, 2016
    Date of Patent: January 24, 2017
    Assignee: Ultradent Products, Inc.
    Inventors: Gordon Kennard, Andy T. Kawamoto, Jeff Wagner
  • Publication number: 20160113847
    Abstract: Dental cement compositions (including two-part compositions), kits, and related methods are used for bonding a dental prosthetic appliance to a tooth. A first part includes an amine activator component and a zinc oxide reactive filler, while a second part includes a polymerization initiator (e.g., benzoyl peroxide) and a polymerizable component having a structure including at least one acrylate or methacrylate group at one end and a carboxylic acid group at another end. A temporary cement composition advantageously exhibits reduced compressive and/or bonding strength relative to permanent cement compositions, which provides sufficient strength to facilitate normal use of the teeth while the provisional appliance is in use, while also facilitating easy removal of the provisional appliance for replacement with a permanent appliance at a later time.
    Type: Application
    Filed: January 7, 2016
    Publication date: April 28, 2016
    Inventors: Gordon Kennard, Andy T. Kawamoto, Jeff Wagner
  • Patent number: 9289358
    Abstract: Two-part resin-reinforced cement compositions, kits, and related methods are used for bonding a dental prosthetic appliance to a tooth. A first part includes an amine activator component and a zinc oxide reactive filler, while a second part includes a polymerization initiator (e.g., benzoyl peroxide) and a polymerizable component having a structure including at least one acrylate or methacrylate group at one end and a carboxylic acid group at another end. A temporary cement composition advantageously exhibits reduced compressive and/or bonding strength relative to permanent cement compositions, which provides sufficient strength to facilitate normal use of the teeth while the provisional appliance is in use, while also facilitating easy removal of the provisional appliance for replacement with a permanent appliance at a later time.
    Type: Grant
    Filed: February 28, 2007
    Date of Patent: March 22, 2016
    Assignee: Ultradent Products, Inc.
    Inventors: Gordon Kennard, Andy T. Kawamoto, Jeff Wagner
  • Publication number: 20080206715
    Abstract: Methods, compositions, and kits for use in facilitating detection and removal of dental adhesives while minimizing and/or eliminating removal of adjacent tooth tissue. A pH sensitive color changing component (i.e., an acid/base indicator) is included within a dental adhesive composition or an activating wash composition. The adhesive composition is used to bond a dental appliance (e.g., a provisional restorative appliance or an orthodontic bracket) to a tooth. When it becomes necessary to remove the dental appliance, selective removal of the dental adhesive while minimizing and/or eliminating removal of enamel or other adjacent tooth tissue are facilitated because of the inclusion of a pH sensitive color-changing component within the dental adhesive or activating wash composition. The adhesive changes from a first color having low contrast relative to adjacent tooth tissue to a second color having greater contrast relative to adjacent tooth tissue upon application of the activating wash.
    Type: Application
    Filed: February 28, 2007
    Publication date: August 28, 2008
    Applicant: Ultradent Products, Inc.
    Inventors: Andy T. Kawamoto, Gordon Kennard, Jeff Wagner
  • Publication number: 20080206712
    Abstract: Two-part resin-reinforced cement compositions, kits, and related methods are used for bonding a dental prosthetic appliance to a tooth. A first part includes an amine activator component and a zinc oxide reactive filler, while a second part includes a polymerization initiator (e.g., benzoyl peroxide) and a polymerizable component having a structure including at least one acrylate or methacrylate group at one end and a carboxylic acid group at another end. A temporary cement composition advantageously exhibits reduced compressive and/or bonding strength relative to permanent cement compositions, which provides sufficient strength to facilitate normal use of the teeth while the provisional appliance is in use, while also facilitating easy removal of the provisional appliance for replacement with a permanent appliance at a later time.
    Type: Application
    Filed: February 28, 2007
    Publication date: August 28, 2008
    Applicant: Ultradent Products, Inc.
    Inventors: Gordon Kennard, Andy T. Kawamoto, Jeff Wagner