Patents by Inventor Ivan Stangel

Ivan Stangel 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: 10966809
    Abstract: A method and a device for treating dental caries using microwave energy applied directly to teeth at frequencies that are lethal to the bacteria in caries, without being destructive to tooth tissues. The method and a device will have a significant economic and health impact, leading to a reduction in traditional surgical interventions, as well by improving access to care for those with health disparities.
    Type: Grant
    Filed: February 3, 2014
    Date of Patent: April 6, 2021
    Assignee: THE UNITED STATES OF AMERICA AS REPRESENTED BY THE ADMINISTRATOR OF THE NATIONAL AERONAUTICS AND SPACE ADMINISTRATION
    Inventors: Ivan Stangel, Marguerite A. Sognier, George D. Arndt, Diane L. Byerly, John Dusl
  • Publication number: 20150374471
    Abstract: A method and a device for treating dental caries using microwave energy applied directly to teeth at frequencies that are lethal to the bacteria in caries, without being destructive to tooth tissues. The method and a device will have a significant economic and health impact, leading to a reduction in traditional surgical interventions, as well by improving access to care for those with health disparities.
    Type: Application
    Filed: February 3, 2014
    Publication date: December 31, 2015
    Inventors: Ivan Stangel, Marguerite A. Sognier, George D. Arndt, Diane L. Byerly, John Dusl
  • Patent number: 6664245
    Abstract: An adhesive composition is provided which is suitable for the bonding of polymeric materials, in whole or in part, such as composite resins, or methacrylate-containing glass-ionomer filling materials, to tooth enamel, or tooth dentin, or to other hand tissues of the human body, such as bone. The composition comprises an unsaturated carboxylic acid ester, an unsaturated phosphate ester and other crosslinking agents. The especially preferred phosphates (which are provided as new compounds) are those of formula (I) in which: R1 is a hydrogen atom, alkyl C1-C4, or CN; R is an aliphatic, cycloaliphatic or aryl radical containing from 1 to 10 carbon atoms and having a valence of n+1; n is an integer from 1 to 5, preferably from 3 to 5.
    Type: Grant
    Filed: January 10, 2003
    Date of Patent: December 16, 2003
    Assignee: BioMat Sciences, Inc.
    Inventors: Ivan Stangel, Jingwei Xu, Thomas Ellis, Edward Sacher
  • Publication number: 20030222366
    Abstract: Dental restoration production in which a digitized optical impression of a dental restoration site is captured using an intra-oral camera, and the captured optical impression is converted into a data file usable for computer-assisted production of all-ceramic or composite resin dental restorations using a fabrication system based on stereolithography.
    Type: Application
    Filed: December 20, 2002
    Publication date: December 4, 2003
    Inventors: Ivan Stangel, Walter R. Zimbeck
  • Patent number: 6645952
    Abstract: An adhesive composition is provided which is suitable for the bonding of polymeric materials, in whole or in part, such as composite resins, or methacrylate-containing glass-ionomer filling materials, to tooth enamel, or tooth dentin, or to other hand tissues of the human body, such as bone. The composition comprises an unsaturated carboxylic acid ester, an unsaturated phosphate ester and other crosslinking agents. The especially preferred phosphates (which are provided as new compounds) are those of formula (I) in which: R1 is a hydrogen atom, alkyl C1-C4, or CN; R is an aliphatic, cycloaliphatic or aryl radical containing from 1 to 10 carbon atoms and having a valence of n+1; n is an integer from 1 to 5, preferably from 3 to 5.
    Type: Grant
    Filed: February 20, 2001
    Date of Patent: November 11, 2003
    Assignee: Biomat Sciences, Inc.
    Inventors: Ivan Stangel, Jingwei Xu, Thomas Ellis, Edward Sacher
  • Patent number: 6605651
    Abstract: This invention provides a method and material compositions for producing objects containing in whole, or in part, biomedical polymers, especially those having dental use. Microwave sensitive material compositions are injected under pressure into a mold, the mold containing a replica of a body tissue or tissues. While hydraulic pressure is maintained on the material, a microwave source emits metered electromagnetic energy for hardening the material in the 3-dimensionally defined space. For dental and other applications, the mold making, injection and hardening are done sequentially to rapidly produce an object which accurately fits the mold.
    Type: Grant
    Filed: September 8, 1999
    Date of Patent: August 12, 2003
    Assignee: Biomat Sciences, Inc.
    Inventors: Ivan Stangel, Jingwei Xu
  • Publication number: 20030118523
    Abstract: An adhesive composition is provided which is suitable for the bonding of polymeric materials, in whole or in part, such as composite resins, or methacrylate-containing glass-ionomer filling materials, to tooth enamel, or tooth dentin, or to other hand tissues of the human body, such as bone. The composition comprises an unsaturated carboxylic acid ester, an unsaturated phosphate ester and other crosslinking agents. The especially preferred phosphates (which are provided as new compounds) are those of formula (I) in which: R1 is a hydrogen atom, alkyl C1-C4, or CN; R is an aliphatic, cycloaliphatic or aryl radical containing from 1 to 10 carbon atoms and having a valence of n+1; n is an integer from 1 to 5, preferably from 3 to 5.
    Type: Application
    Filed: January 10, 2003
    Publication date: June 26, 2003
    Applicant: BioMat Sciences, Inc.
    Inventors: Ivan Stangel, Jingwei Xu, Thomas Ellis, Edward Sacher
  • Publication number: 20030069326
    Abstract: This invention provides a method and material compositions for producing objects containing in whole, or in part, biomedical polymers, especially those having dental use. Microwave sensitive material compositions are injected under pressure into a mold, the mold containing a replica of a body tissue or tissues. While hydraulic pressure is maintained on the material, a microwave source emits metered electromagnetic energy for hardening the material in the 3-dimensionally defined space. For dental and other applications, the mold making, injection and hardening are done sequentially to rapidly produce an object which accurately fits the mold.
    Type: Application
    Filed: May 14, 2002
    Publication date: April 10, 2003
    Applicant: BioMat Sciences, Inc.
    Inventors: Ivan Stangel, Jingwei Xu
  • Patent number: 6444724
    Abstract: Composite materials particularly suitable in the dental art as a tooth filling material including a polymer matrix, a metal, metal alloy, metal oxide particulate, or combinations thereof, in the presence or absence of colloidal silica, and a coupling agent to adhere the particulate to the polymer matrix. Adhesion can also be facilitated by cleaning and/or coating the particulates prior to incorporation into the polymer matrix. One or two paste systems of the composition with suitable initiators, accelerators, etc. can be formulated.
    Type: Grant
    Filed: December 20, 1999
    Date of Patent: September 3, 2002
    Assignee: BioMat Sciences, Inc.
    Inventors: Ivan Stangel, Thomas Ellis, Erik Kruus, Edward Sacher, Robin Drew, Jingwei Xu
  • Publication number: 20020015682
    Abstract: An adhesive composition is provided which is suitable for the bonding of polymeric materials, in whole or in part, such as composite resins, or methacrylate-containing glass-ionomer filling materials, to tooth enamel, or tooth dentin, or to other hand tissues of the human body, such as bone. The composition comprises an unsaturated carboxylic acid ester, an unsaturated phosphate ester and other crosslinking agents. The especially preferred phosphates (which are provided as new compounds) are those of formula (I) in which: R1 is a hydrogen atom, alkyl C1-C4, or CN; R is an aliphatic, cycloaliphatic or aryl radical containing from 1 to 10 carbon atoms and having a valence of n+1; n is an integer from 1 to 5, preferably from 3 to 5.
    Type: Application
    Filed: February 20, 2001
    Publication date: February 7, 2002
    Inventors: Ivan Stangel, Jingwei Xu, Thomas Ellis, Edward Sacher