Patents by Inventor James L. Gutmann

James L. Gutmann 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: 9925125
    Abstract: A dental composition comprising: a) about 1 to about 80% by weight of particulate material including: (i) calcium silicate, calcium aluminate, tetracalcium aluminoferrite, calcium phosphate, calcium sulfate, silica, alumina, calcium oxide, calcium hydroxide, or mixtures thereof; wherein the particulate material has an average particle size of less than 40 microns; and b) about 1 to about 50% by weight liquid carrier including: (i) water-soluble polymer, and (ii) water.
    Type: Grant
    Filed: October 22, 2015
    Date of Patent: March 27, 2018
    Assignee: DENTSPLY SIRONA INC.
    Inventors: Carolyn M. Primus, James L. Gutmann, Miklos M. Breuer, Steven R. Jefferies
  • Patent number: 9801792
    Abstract: A dental composition comprising: a) about 1 to about 80% by weight of particulate material including: (i) calcium silicate, calcium aluminate, tetracalcium aluminoferrite, calcium phosphate, calcium sulfate, silica, alumina, calcium oxide, calcium hydroxide, or mixtures thereof; and b) about 1 to about 50% by weight liquid carrier including: (i) water-soluble polymer, (ii) surfactant, the surfactant is selected from the group consisting of alkyl sulfates, alkyl ether sulfates, and sarcosinates, and mixtures thereof; and (iii) water; wherein the particulate and liquid carrier being mixed together to form a hydrate gel material that can harden.
    Type: Grant
    Filed: January 7, 2014
    Date of Patent: October 31, 2017
    Assignee: DENTSPLY International Inc.
    Inventors: Carolyn M. Primus, James L. Gutmann, Miklos M. Breuer, Steven R. Jefferies
  • Publication number: 20160038380
    Abstract: A dental composition comprising: a) about 1 to about 80% by weight of particulate material including: (i) calcium silicate, calcium aluminate, tetracalcium aluminoferrite, calcium phosphate, calcium sulfate, silica, alumina, calcium oxide, calcium hydroxide, or mixtures thereof; wherein the particulate material has an average particle size of less than 40 microns; and b) about 1 to about 50% by weight liquid carrier including: (i) water-soluble polymer, and (ii) water.
    Type: Application
    Filed: October 22, 2015
    Publication date: February 11, 2016
    Inventors: Carolyn M. Primus, James L. Gutmann, Miklos M. Breuer, Steven R. Jefferies
  • Publication number: 20140121280
    Abstract: A dental composition comprising: a) about 1 to about 80% by weight of particulate material including: (i) calcium silicate, calcium aluminate, tetracalcium aluminoferrite, calcium phosphate, calcium sulfate, silica, alumina, calcium oxide, calcium hydroxide, or mixtures thereof; and b) about 1 to about 50% by weight liquid carrier including: (i) water-soluble polymer, (ii) surfactant, the surfactant is selected from the group consisting of alkyl sulfates, alkyl ether sulfates, and sarcosinates, and mixtures thereof; and (iii) water; wherein the particulate and liquid carrier being mixed together to form a hydrate gel material that can harden.
    Type: Application
    Filed: January 7, 2014
    Publication date: May 1, 2014
    Applicant: DENTSPLY International Inc.
    Inventors: Carolyn M. Primus, James L. Gutmann, Miklos M. Breuer, Steven R. Jefferies
  • Patent number: 8658712
    Abstract: Improved compositions comprising a mixture of particulate materials with water-based liquids containing water-soluble polymers and surfactants are provided. Examples of particulate powders include mixtures of calcium silicate, calcium aluminate, calcium sulfate, and hydroxyapatite. Examples of water-soluble polymers include polyvinyl alcohols, polyvinyl pyrrolidone, partially hydrolyzed polyvinyl acetates, polyacrylic acid, and polymethacrylic acid. Surfactants such as sodium dodecyl sulfate are added to the composition to interact with the polymeric materials. The compositions are particularly suitable for sealing and obturating dental root canals and root apices. The composition provides a stable barrier to bacterial and fluid leakage in the root canal system of a tooth. In addition, the compositions help promote the growth of new bone and tissue surrounding the root-tip area or dentin tissue that covers an injured or amputated pulp.
    Type: Grant
    Filed: February 8, 2008
    Date of Patent: February 25, 2014
    Assignee: Dentsply International Inc.
    Inventors: Carolyn M. Primus, James L. Gutmann, Miklos M. Breuer, Steven R. Jefferies
  • Publication number: 20110104644
    Abstract: Improved compositions comprising a mixture of particulate materials with water-based liquids containing water-soluble polymers and surfactants are provided. Examples of particulate powders include mixtures of calcium silicate, calcium aluminate, calcium sulfate, and hydroxyapatite. Examples of water-soluble polymers include polyvinyl alcohols, polyvinyl pyrrolidone, partially hydrolyzed polyvinyl acetates, polyacrylic acid, and polymethacrylic acid. Surfactants such as sodium dodecyl sulfate are added to the composition to interact with the polymeric materials. The compositions are particularly suitable for sealing and obturating dental root canals and root apices. The composition provides a stable barrier to bacterial and fluid leakage in the root canal system of a tooth. In addition, the compositions help promote the growth of new bone and tissue surrounding the root-tip area or dentin tissue that covers an injured or amputated pulp.
    Type: Application
    Filed: February 8, 2008
    Publication date: May 5, 2011
    Inventors: Carolyn M. Primus, James L. Gutmann, Miklos M. Breuer, Steven R. Jefferies
  • Patent number: 7838573
    Abstract: Improved compositions comprising a mixture of gutta-percha and a hydraulic material containing calcium silicate, calcium aluminate, calcium phosphate, and calcium sulfate compounds are provided. Preferably, the composition includes hydroxylapatite mineral. The composition is particularly suitable for obturating and sealing dental root canals. The composition should provide a stable barrier to bacterial and fluid leakage in the root canal system of a tooth. In addition, the composition should help promote the growth of new bone and tissue surrounding the root tip area.
    Type: Grant
    Filed: June 27, 2007
    Date of Patent: November 23, 2010
    Assignee: DENTSPLY International, Inc.
    Inventors: Carolyn M. Primus, James L. Gutmann
  • Patent number: 4409332
    Abstract: Collagen polymers are rendered non-inflammatory by complexation with alkaline phosphatase according to the procedure disclosed. Applications of these non-inflammatory collagen complexes include the production of non-inflammatory collagen sutures, collagen soft tissue replacements including wound and burn coverings and arterial vessel replacements, collagen drug delivery devices, and vitreous replacement for opthalmologic therapy. Gels composed of the collagen-alkaline phosphatase conjugate plus calcium hydroxide are useful as an agent in endodontic therapy. Structural durability and stabilization of the anti-inflammatory properties of the material are enhanced by crosslinking with glutaraldehyde or other crosslinking agents. Glutaraldehyde also acts to sterilize and disinfect the collagen conjugate prior to in-vivo use.
    Type: Grant
    Filed: January 12, 1982
    Date of Patent: October 11, 1983
    Inventors: Steven R. Jefferies, James L. Gutmann, Barry M. Heatfield