Patents by Inventor Benjamin J. Sun

Benjamin J. Sun 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: 7024770
    Abstract: The invention provides high strength dental polymeric dental products made from wax-like polymerizable dental material. These dental products have superior strength compared to products formed from prior wax-like polymerizable materials. Prior wax-like polymerizable materials do not form strong enough polymeric material for making dentures. High strength dentures are made by positioning artificial teeth in wax-like polymerizable dental material of the invention. This material is then shaped and polymerized to the form a denture base of high strength dental polymeric material. These dentures are completed without forming wax and without applying inorganic plaster to the artificial teeth.
    Type: Grant
    Filed: May 8, 2003
    Date of Patent: April 11, 2006
    Assignee: Dentsply Research & Development Corp.
    Inventors: Benjamin J. Sun, Andrew M. Lichkus
  • Patent number: 6918765
    Abstract: A dental product formed by a process and a method of using a denture including providing a denture having an outer face, applying a readily flowable material to the face. The flowable material comprises volatile material and polymeric material. Volatilizing at least a portion of the volatile material from the flowable material to form a readily peelable water swellable solid film. The film is substantially insoluble in water. The film comprising at least 10% by weight of the polymeric material. The denture having an outer face. The film adheres to the face and film effectively not being covalently bonded to the face. The product and method are preferably carried out using an adhesive dispenser including a container, a pump and flowable adhesive. The flowable adhesive is enclosed by the container. The pump is supported by the container and the pump is connected through a conduit to the flowable adhesive.
    Type: Grant
    Filed: June 14, 2002
    Date of Patent: July 19, 2005
    Inventors: Benjamin J. Sun, Andrew M. Lichkus
  • Publication number: 20040224283
    Abstract: The invention provides a method of shaping a dental product, comprising: shaping a curable polymerizable composition to form a shape of a dental product. The polymerizable composition is adapted to cure to form polymeric material, which at 37° C. has a flexural modulus of less than 250,000 psi and a flexural strength of less than 7,000 psi.
    Type: Application
    Filed: November 26, 2003
    Publication date: November 11, 2004
    Inventors: Benjamin J. Sun, Andrew M. Lichkus
  • Patent number: 6799969
    Abstract: The invention provides a high strength dental polymeric material formed from wax-like polymerizable dental material. A wax-like polymerizable dental material formed by a process comprising blending polymerizable compounds which polymerize to form high strength dental polymeric material. The invention provides a process for making a denture including: positioning artificial teeth in wax-like polymerizable dental material, and shaping the polyermizable material into the form of a denture base. The process is completed without forming wax and without applying inorganic plaster to the artificial teeth.
    Type: Grant
    Filed: November 27, 2002
    Date of Patent: October 5, 2004
    Assignee: Dentsply Research & Development Corp.
    Inventors: Benjamin J. Sun, Andrew M. Lichkus
  • Publication number: 20040084792
    Abstract: A dental device and method of making it, by shaping a first and a second wax-like polymerizable dental material to form a polymerizable dental device.
    Type: Application
    Filed: October 16, 2003
    Publication date: May 6, 2004
    Inventors: Benjamin J. Sun, Andrew M. Lichkus
  • Publication number: 20030190585
    Abstract: The invention provides high strength dental polymeric dental products made from wax-like polymerizable dental material. These dental products have superior strength compared to products formed from prior wax-like polymerizable materials. Prior wax-like polymerizable materials do not form strong enough polymeric material for making dentures. High strength dentures are made by positioning artificial teeth in wax-like polymerizable dental material of the invention. This material is then shaped and polymerized to the form a denture base of high strength dental polymeric material. These dentures are completed without forming wax and without applying inorganic plaster to the artificial teeth.
    Type: Application
    Filed: May 8, 2003
    Publication date: October 9, 2003
    Applicant: Dentsply Research & Development Corp.
    Inventors: Benjamin J. Sun, Andrew M. Lichkus
  • Publication number: 20030152888
    Abstract: The invention provides a method of making a dental appliance by shaping a low ball tack polymerizable material. By including fluorescing agent the surfaces of dental appliances are visually identifiable.
    Type: Application
    Filed: April 2, 2003
    Publication date: August 14, 2003
    Inventors: Benjamin J Sun , Andrew M Lichkus
  • Patent number: 6592369
    Abstract: The invention provides high strength dental polymeric dental products made from wax-like polymerizable dental material. These dental products have superior strength compared to products formed from prior wax-like polymerizable materials. Prior wax-like polymerizable materials do not form strong enough polymeric material for making dentures. High strength dentures are made by positioning artificial teeth in wax-like polymerizable dental material of the invention. This material is then shaped and polymerized to the form a denture base of high strength dental polymeric material. These dentures are completed without forming wax and without applying inorganic plaster to the artificial teeth.
    Type: Grant
    Filed: September 4, 2001
    Date of Patent: July 15, 2003
    Assignee: Dentsply Research & Development Corp.
    Inventors: Benjamin J. Sun, Andrew M. Lichkus
  • Publication number: 20030113689
    Abstract: The invention provides a high strength dental polymeric material formed from wax-like polymerizable dental material. A wax-like polymerizable dental material formed by a process comprising blending polymerizable compounds which polymerize to form high strength dental polymeric material. The invention provides a process for making a denture including: positioning artificial teeth in wax-like polymerizable dental material, and shaping the polyermizable material into the form of a denture base. The process is completed without forming wax and without applying inorganic plaster to the artificial teeth.
    Type: Application
    Filed: November 27, 2002
    Publication date: June 19, 2003
    Inventors: Benjamin J. Sun, Andrew M. Lichkus
  • Publication number: 20020117393
    Abstract: The invention provides a light curing method, including: providing a light curing apparatus having at least one light source, at least one fan and a curing volume. A first polymerizable shaped material is positioned within the curing volume. The light source and the fan are controlled to heat the first polymerizable shaped material to temperatures within a first temperature range. The light source and the fan are controlled to maintain the first polymerizable shaped material at temperatures within the first temperature range for at least 1 minute. A second polymerizable shaped material is positioned within the curing volume. The light source and the fan are controlled to heat the second polymerizable shaped material to temperatures within a second temperature range. The light source and the fan are controlled to maintain the second polymerizable shaped material at temperatures within the second temperature range for at least 1 minute.
    Type: Application
    Filed: March 26, 2002
    Publication date: August 29, 2002
    Inventors: Benjamin J. Sun, Andrew Lichkus, Scott Shaffer
  • Publication number: 20020061493
    Abstract: The invention provides high strength dental polymeric dental products made from wax-like polymerizable dental material. These dental products have superior strength compared to products formed from prior wax-like polymerizable materials. Prior wax-like polymerizable materials do not form strong enough polymeric material for making dentures. High strength dentures are made by positioning artificial teeth in wax-like polymerizable dental material of the invention. This material is then shaped and polymerized to the form a denture base of high strength dental polymeric material. These dentures are completed without forming wax and without applying inorganic plaster to the artificial teeth.
    Type: Application
    Filed: September 4, 2001
    Publication date: May 23, 2002
    Inventors: Benjamin J. Sun, Andrew M. Lichkus