Patents by Inventor Gregory A. Kobussen

Gregory A. Kobussen 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).

  • Dental Compositions with Fluorescent Pigment
    Publication number: 20110200971
    Abstract: The invention features a dental composition containing a fluorescent organic pigment, e.g. a hydroxyl substituted aryl guanamine an or a fluorescent compound encapsulated in a thermo plastic or thermo set polymer, in an amount that provides the composition with fluorescence resembling that of natural teeth.
    Type: Application
    Filed: October 9, 2009
    Publication date: August 18, 2011
    Inventors: Rajdeep S. Kalgutkar, Gregory A. Kobussen
  • DENTAL COMPOSITIONS AND INITIATOR SYSTEMS WITH COLOR-STABLE AMINE ELECTRON DONORS
    Publication number: 20100311858
    Abstract: The invention features a hardenable dental composition, e.g., polymerizable dental restoratives, adhesives, etc., that contain a color-stable amine electron donor in an initiation system for initiating polymerization of the composition.
    Type: Application
    Filed: October 29, 2008
    Publication date: December 9, 2010
    Inventors: Brian N. Holmes, Gregory A. Kobussen
  • DENTAL COMPOSITIONS WITH NATURAL TOOTH FLUORESCENCE AND METHODS
    Publication number: 20100297588
    Abstract: Hardenable dental compositions which include a fluorescent diether terephthalate and a resin system, such that when hardened, the compositions have a natural tooth fluorescence, methods of making the compositions, and dental articles made from the compositions are disclosed.
    Type: Application
    Filed: October 29, 2008
    Publication date: November 25, 2010
    Applicant: 3M INNOVATIVE PROPERTIES COMPANY
    Inventors: Rajdeep S. Kalgutkar, Gregory A. Kobussen
  • DENTAL FILLER AND METHODS
    Publication number: 20100089286
    Abstract: A dental filler is disclosed. The filler is produced by admixing a metal oxide sol and a water-soluble organic binder; drying said mixed sol into a dried product; and calcining said dried product; wherein said filler is a substantially amorphous cluster. The filler can be mixed into a hardenable resin to provide radiopaque dental materials having desirable strength and aesthetic character.
    Type: Application
    Filed: December 28, 2007
    Publication date: April 15, 2010
    Applicant: 3M INNOVATIVE PROPERTIES COMPANY
    Inventors: Bradley D. Craig, Gregory A. Kobussen
  • DENTAL COMPOSITIONS WITH NATURAL TOOTH FLUORESCENCE
    Publication number: 20100016464
    Abstract: The invention features a dental composition containing a polycyclic aromatic compound, such as 2-ethyl 9,10-dimethoxy anthracene (EDMOA), in an amount that provides the composition with fluorescence mimicking that of natural teeth.
    Type: Application
    Filed: December 21, 2007
    Publication date: January 21, 2010
    Applicant: 3M INNOVATIVE PROPERTIES COMPANY
    Inventors: Bradley D. Craig, Gregory A. Kobussen