Patents by Inventor Kai Pflug

Kai Pflug 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 materials having a nanoscale filler
    Patent number: 6693143
    Abstract: A low-viscosity dental material contains a non-settling nanoscale filler. Improvements of the mechanical properties of the dental materials, including the abrasive resistance and the compressive strength are provided. Furthermore, the dental materials have increased resistance to microleakage and have increased bond strengths. The filler forms a stable sol with low-viscosity dental materials and the filler may be prepared by surface treatment of fillers having a primary particle size of from about 1 to about 100 nanometers.
    Type: Grant
    Filed: November 19, 2001
    Date of Patent: February 17, 2004
    Assignee: Dentsply DeTrey GmbH
    Inventor: Kai Pflug
  • Tooth surface treatment composition and methods
    Patent number: 6575752
    Abstract: A tooth surface treatment composition includes an acidic component which is at least one water-soluble acid in an aqueous solution, such that when the composition is applied to the tooth surface and not subsequently washed, it will increase the adhesiveness of the tooth structure. A method of treating a tooth structure includes contacting the tooth structure with such a composition.
    Type: Grant
    Filed: May 11, 2000
    Date of Patent: June 10, 2003
    Assignee: Dentsply DeTrey GmbH
    Inventors: Kai Pflug, Gordon Brian Blackwell, Steven R. Jefferies, Hans Rolf Kase
  • Dental materials having a nanoscale filler
    Patent number: 6399037
    Abstract: A low-viscosity dental material contains a non-settling nanoscale filler. Improvements of the mechanical properties of the dental materials, including the abrasive resistance and the compressive strength are provided. Furthermore, the dental materials have increased resistance to microleakage and have increased bond strengths. The filler forms a stable sol with low-viscosity dental materials and the filler may be prepared by surface treatment of fillers having a primary particle size of from about 1 to about 100 nanometers.
    Type: Grant
    Filed: February 4, 1999
    Date of Patent: June 4, 2002
    Assignee: Dentsply Detrey GmbH
    Inventors: Kai Pflug, Christoph Weber
  • Dental materials having a nanoscale filler
    Publication number: 20020065337
    Abstract: A low-viscosity dental material contains a non-settling nanoscale filler. Improvements of the mechanical properties of the dental materials, including the abrasive resistance and the compressive strength are provided. Furthermore, the dental materials have increased resistance to microleakage and have increased bond strengths. The filler forms a stable sol with low-viscosity dental materials and the filler may be prepared by surface treatment of fillers having a primary particle size of from about 1 to about 100 nanometers.
    Type: Application
    Filed: November 19, 2001
    Publication date: May 30, 2002
    Applicant: DENTSPLY DeTrey GmbH.
    Inventor: Kai Pflug
  • Antimicrobial dental materials contraining 2,4,4' -trichloro2' -hydroxydiphenyl ether
    Publication number: 20020012634
    Abstract: Polymerizable denial materials having an antimicrobial effect are provided. These include dental materials such as protective dental varnishes, composites, compomers, fissure sealants, dental cements, dental bonding agents and similar materials, and containing 2,4,4′-trichloro-2′-hydroxydiphenyl ether.
    Type: Application
    Filed: January 25, 2001
    Publication date: January 31, 2002
    Applicant: DENTSPLY DeTrey GmbH
    Inventors: Kai Pflug, Michael J. Noack
  • Protective varnish for dentin
    Publication number: 20010009931
    Abstract: A protective varnish is provided for prophylactic treatment of exposed dentin. The varnish offers mechanical protection from wear and prevents hypersensitivity by blocking the dentin tubules. The varnish comprises a matrix of curable resins. These resins penetrate the dentin and after curing enforce it, making the dentin more resistant to abrasion. The varnish may also offer an antimicrobial effect. This effect can be achieved by the varnish containing a broad spectrum antimicrobial agent such as 2,4,4′-trichloro-2′-hydroxydiphenyl ether.
    Type: Application
    Filed: April 26, 2000
    Publication date: July 26, 2001
    Inventors: Kai Pflug, Edward Lynch
  • Tooth surface treatment composition and methods
    Patent number: 6004390
    Abstract: A tooth surface treatment composition includes an acidic component which is at least one water-soluble acid in an aqueous solution, such that when the composition is applied to the tooth surface and not subsequently washed, it will increase the adhesiveness of the tooth structure. A method of treating a tooth structure includes contacting the tooth structure with such a composition.
    Type: Grant
    Filed: April 14, 1997
    Date of Patent: December 21, 1999
    Assignee: DENTSPLY DeTrey GmbH
    Inventors: Kai Pflug, Gordon Brian Blackwell, Steven R. Jefferies, Hans Rolf Kase