Patents by Inventor Edward C. Combe

Edward C. Combe 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: 20040034119
    Abstract: Described are methods of improving cure of polymerizable dental materials by preventing oxygen inhibition; preferred embodiments relate to methods wherein the dental compositions comprises a polymerizable sealant and the barrier material comprises an essential oil.
    Type: Application
    Filed: August 8, 2003
    Publication date: February 19, 2004
    Inventors: John H. Warford, John H. Warford, Edward C. Combe
  • Patent number: 6620859
    Abstract: Described are methods of improving cure of polymerizable dental materials by preventing oxygen inhibition; preferred embodiments relate to methods wherein the dental compositions comprises a polymerizable sealant and the barrier material comprises an essential oil.
    Type: Grant
    Filed: December 15, 2000
    Date of Patent: September 16, 2003
    Assignee: Dakota Dental Development, Inc.
    Inventors: John H. Warford, II, John H. Warford, III, Edward C. Combe
  • Patent number: 6592851
    Abstract: The present invention provides a method of utilizing a non-metallic composition to repair or seal hard dental tissue, wherein the non-metallic compositions harden in the mouth to form substantially permanent fixtures. The compositions comprise an amount of an essential oil effective to alter the sensor properties, i.e., the taste or smell, of the composition, and that desirably imparts a pleasant taste and/or odor. The essential oil further advantageously provides the composition, once hardened in the mouth, with a surface more hydrophobic than a corresponding composition, thereby inhibiting the deposition or formation of bacterial plaque.
    Type: Grant
    Filed: August 31, 2001
    Date of Patent: July 15, 2003
    Assignee: Dakota Dental Development, Inc.
    Inventors: John H. Warford, III, Edward C. Combe, John H. Warford, II
  • Patent number: 6451292
    Abstract: The present invention provides a method of utilizing a non-metallic composition to adhere one or more dental or orthodontic fixtures to hard dental tissue, wherein the non-metallic compositions harden in the mouth to form substantially permanent fixtures. The compositions comprise an amount of an essential oil effective to alter the sensory properties, i.e., the taste or smell, of the composition, and that desirably imparts a pleasant taste and/or odor. The essential oil further advantageously provides the composition, once hardened in the mouth, with a surface more hydrophobic than a corresponding composition, thereby inhibiting the deposition or formation of bacterial plaque.
    Type: Grant
    Filed: August 31, 2001
    Date of Patent: September 17, 2002
    Assignee: Dakota Dental Development, Inc.
    Inventors: John H. Warford, III, Edward C. Combe, John H. Warford, II
  • Publication number: 20020106334
    Abstract: Compositions for conditioning a tooth surface prior to the application of a dental materials which will desirably form a substantially permanent bond with the conditioned tooth surface are provided, wherein the conditioning compositions contains a flavorant such as a water-based flavorant, an oil-based flavorant, a solid (e.g., powder) flavorant, or a non-oil-based flavorant, as well as methods of using the conditioning composition to prepare a tooth surface, e.g., for the application of a free-radically polymerizable dental material.
    Type: Application
    Filed: December 7, 2001
    Publication date: August 8, 2002
    Inventors: Edward C. Combe, John H. Warford, John H. Warford
  • Patent number: 6419904
    Abstract: Compositions for conditioning a tooth surface prior to the application of a dental materials which will desirably form a substantially permanent bond with the conditioned tooth surface are provided. The conditioning compositions comprise an amount of an essential oil effective to alter the sensory properties, i.e. the taste, a smell, of the conditioning composition and that desirably imparts a more pleasing taste and/or odor. Also provided are methods of using the conditioning composition to prepare a tooth surface for the application of a free radically polymerizable dental material and for treating a tooth by forming a substantially permanent bond with a free radically polymerizable dental material.
    Type: Grant
    Filed: August 31, 2001
    Date of Patent: July 16, 2002
    Assignee: Dakota Dental Development, Inc.
    Inventors: Edward C. Combe, John H. Warford, III, John H. Warford, II
  • Publication number: 20020077382
    Abstract: Described are methods of improving cure of polymerizable dental materials by preventing oxygen inhibition; preferred embodiments relate to methods wherein the dental compositions comprises a polymerizable sealant and the barrier material comprises an essential oil.
    Type: Application
    Filed: December 15, 2000
    Publication date: June 20, 2002
    Inventors: John H. Warford, John H. Warford, Edward C. Combe
  • Publication number: 20020018756
    Abstract: The present invention provides non-metallic compositions that are useful to repair, restore, adhere to, or protect, the surface of a tooth and that harden in the moutn to form substantially permanent features therein or to adhere fixtures to the surface of a tooth in a substantially permanent manner. The compositions comprise an amount of an essential oil effective to alter the sensory properties, i.e. the taste, a smell, of the composition and that desirably imparts a pleasant taste and/or order. The essential oil further advantageously provides the composition, once hardened in the mouth, with a surface more hydrophobic than a corresponding conventional composition, thereby inhibiting the deposition or formation of bacterial plaque. Also provided are a method of using the compositions to repair or seal hard dental tissue, as well as a method to adhere one or more dental or orthodontic fixtures to hard dental tissue.
    Type: Application
    Filed: August 31, 2001
    Publication date: February 14, 2002
    Inventors: John H. Warford, Edward C. Combe, John H. Warford
  • Publication number: 20020012638
    Abstract: The present invention provides non-metallic compositions that are useful to repair, restore, adhere to, or protect, the surface of a tooth and that harden in the mouth to form substantially permanent features therein or to adhere fixtures to the surface of a tooth in a substantially permanent manner. The compositions comprise an amount of an essential oil effective to alter the sensory properties, i.e. the taste, a smell, of the composition and that desirably imparts a pleasant taste and/or order. The essential oil further advantageously provides the composition, once hardened in the mouth, with a surface more hydrophobic than a corresponding conventional composition, thereby inhibiting the deposition or formation of bacterial plaque. Also provided are a method of using the compositions to repair or seal hard dental tissue, as well as a method to adhere one or more dental or orthodontic fixtures to hard dental tissue.
    Type: Application
    Filed: August 31, 2001
    Publication date: January 31, 2002
    Inventors: John H. Warford, Edward C. Combe, John H. Warford
  • Patent number: 6342203
    Abstract: The present invention provides non-metallic compositions that are useful to repair, restore, adhere to, or protect, the surface of a tooth and that harden in the mouth to form substantially permanent features therein or to adhere fixtures to the surface of a tooth in a substantially permanent manner. The compositions comprise an amount of an essential oil effective to alter the sensory properties, e.g., taste, smell, of the composition and that desirably imparts a pleasant taste and/or order. The essential oil further advantageously provides the composition, once hardened in the mouth, with a surface more hydrophobic than a corresponding conventional composition, thereby inhibiting the deposition or formation of bacterial plaque.
    Type: Grant
    Filed: October 27, 1999
    Date of Patent: January 29, 2002
    Assignee: Dakota Dental Development, Inc.
    Inventors: John H. Warford, III, Edward C. Combe, John H. Warford, II
  • Patent number: 6342204
    Abstract: Compositions for conditioning a tooth surface prior to the application of a dental material which will desirably form a substantially permanent bond with the conditioned tooth surface are provided. The conditioning compositions comprise an amount of an essential oil effective to alter the sensory properties, i.e., the taste, a smell, of the conditioning composition and that desirably imparts a more pleasing taste and/or odor.
    Type: Grant
    Filed: October 27, 1999
    Date of Patent: January 29, 2002
    Assignee: Dakota Dental Development, Inc
    Inventors: Edward C. Combe, John H. Warford, III, John H. Warford, II
  • Publication number: 20010006623
    Abstract: The present invention provides non-metallic compositions that are useful to repair, restore, adhere to, or protect, the surface of a tooth and that harden in the mouth to form substantially permanent features therein or to adhere fixtures to the surface of a tooth in a substantially permanent manner. The compositions comprise an amount of an essential oil effective to alter the sensory properties, i.e. the taste, a smell, of the composition and that desirably imparts a pleasant taste and/or order. The essential oil further advantageously provides the composition, once hardened in the mouth, with a surface more hydrophobic than a corresponding conventional composition, thereby inhibiting the deposition or formation of bacterial plaque. Also provided are a method of using the compositions to repair or seal hard dental tissue, as well as a method to adhere one or more dental or orthodontic fixtures to hard dental tissue.
    Type: Application
    Filed: October 27, 1999
    Publication date: July 5, 2001
    Inventors: JOHN H. WARFORD, EDWARD C. COMBE, JOHN H. WARFORD
  • Patent number: 6197846
    Abstract: The present invention is an endodontic sealer paste and an endodontic core material for root canal filling, retrofilling, and perforation repair. The endodontic sealer paste contains a dry poly(carboxylic acid), zinc oxide, and an aliphatic acid. The endodontic core material contains a pliant polymer, a dry poly(carboxylic acid), and zinc oxide.
    Type: Grant
    Filed: October 5, 1999
    Date of Patent: March 6, 2001
    Assignee: River Valley Endodontics, P.A.
    Inventors: Edward C. Combe, Ernest S. Reeh
  • Patent number: 6028125
    Abstract: The present invention is an endodontic sealer paste and an endodontic core material for root canal filling, retrofilling, and perforation repair. The endodontic sealer paste contains a dry poly(carboxylic acid), zinc oxide, and an aliphatic acid. The endodontic core material contains a pliant polymer, a dry poly(carboxylic acid), and zinc oxide.
    Type: Grant
    Filed: June 10, 1998
    Date of Patent: February 22, 2000
    Assignee: River Valley Endodontics, P.A.
    Inventors: Edward C. Combe, Ernest S. Reeh
  • Patent number: 5141560
    Abstract: Dental cement comprising (a) calcium or zinc oxide or hydroxide, (b) a substituted aromatic compound capable of forming a cement with (a), the calcium or zinc oxide or hydroxide of (a) being in stoichiometric excess over (b), and (c) dry poly(carboxylic acid), or a precursor thereof, or dry cation-crosslinkable polymeric acid containing on average 1 phosphonic acid group per 1 to 3 backbone carbon atoms. The cement has bacteriostatic properties, stimulates the formation of secondary dentine, forms an adhesive bond and can be used where pulp tissue is exposed.
    Type: Grant
    Filed: November 28, 1990
    Date of Patent: August 25, 1992
    Assignee: National Research Development Corporation
    Inventors: Edward C. Combe, Ben C. Cohen, Alan D. Wilson
  • Patent number: 4174334
    Abstract: Alumino-borate glasses containing a ternary oxide an alkaline earth or alkali metal oxide are used in powdered form with an organic polycarboxylic acid (preferably polyacrylic acid) to make improved surgical cements especially useful in dentistry.
    Type: Grant
    Filed: November 7, 1977
    Date of Patent: November 13, 1979
    Assignee: Imperial Chemical Industries Limited
    Inventors: Barry W. Bertenshaw, Edward C. Combe, David C. Tidy, John N. C. Laycock