Patents by Inventor Christos Angeletakis

Christos Angeletakis 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: 11844663
    Abstract: A light curing dental system comprising a light emitting tray that precisely distributes an optimal amount of curing light energy to internal, external and extra oral portions of the dental arch to cure a dental material. The light curing dental system generally includes a light source, a light emitting dental tray, an activation module and a photocurable dental material.
    Type: Grant
    Filed: September 16, 2021
    Date of Patent: December 19, 2023
    Assignee: DENTSPLY SIRONA INC.
    Inventors: Thomas Ruth, William Kane, Joseph Gordon, Luke Hagan, David Copeland, Andrew Burke, Dustin Gaidos, Christos Angeletakis
  • Patent number: 11813141
    Abstract: A light curing dental system comprising a light emitting tray that precisely distributes an optimal amount of curing light energy to internal, external and extra oral portions of the dental arch to cure a dental material. The light curing dental system generally includes a light source, a light emitting dental tray, an activation module and a photocurable dental material.
    Type: Grant
    Filed: January 25, 2018
    Date of Patent: November 14, 2023
    Assignee: DENTSPLY SIRONA INC.
    Inventors: Naim Karazivan, Paul Pierson, Christos Angeletakis
  • Patent number: 11642304
    Abstract: Copolymers are formed of monomers of poly(dimethylsiloxane) and poly(alkylene oxide) of the following formula: Ax-XCH2CH2—[ByCz]n—X-Ax. In the formula, each X independently represents a —CH2— group or an oxygen atom, A represents a polydimethylsiloxane derivative, B represents a polyethylene glycol unit, C represents a polypropylene glycol unit, x and n independently represent an integer from 1 to 150, and y and z independently represent an integer from 0 to 150. The copolymers can be used as emulsifiers in personal care compositions.
    Type: Grant
    Filed: July 25, 2019
    Date of Patent: May 9, 2023
    Assignee: CORNELIUS GROUP PLC
    Inventors: Thomas Guy Alabaster, Hannah Ruth Beasley-Suffolk, John Mark Bilney, Ella-Louise Ceraulo, John Ing Chuan Daly, Ian Stuart Pearce, Elizabeth Joan Smith, Robert Liam Smith, Christos Angeletakis, Yingfa Li
  • Publication number: 20220000590
    Abstract: A light curing dental system comprising a light emitting tray that precisely distributes an optimal amount of curing light energy to internal, external and extra oral portions of the dental arch to cure a dental material. The light curing dental system generally includes a light source, a light emitting dental tray, an activation module and a photocurable dental material.
    Type: Application
    Filed: September 16, 2021
    Publication date: January 6, 2022
    Applicant: DENTSPLY SIRONA Inc.
    Inventors: Thomas Ruth, William Kane, Joseph Gordon, Luke Hagan, David Copeland, Andrew Burke, Dustin Gaidos, Christos Angeletakis
  • Patent number: 11154463
    Abstract: The present disclosure generally relates to a curable one part silicone composition. The curable one part silicone composition includes an organopolysiloxane compound having at least two unsaturated groups; an organohydrogenpolysiloxane compound having at least two Si—H groups; a catalyst for enabling the addition of the hydrogen atoms bonded to the silicone to the unsaturated group; and at least one surface treated particulate filler. The curable one part silicone composition is useful as a dental impression material. More particularly, the curable one part silicone composition including the surface treated filler extends storage stability of the dental impression material. The disclosure also provides methods of preparing such curable one part silicone composition.
    Type: Grant
    Filed: March 29, 2019
    Date of Patent: October 26, 2021
    Assignee: DENTSPLY SIRONA INC.
    Inventor: Christos Angeletakis
  • Patent number: 11110039
    Abstract: A light-curable dental impression material comprising (a) a polymerizable polysiloxane resin composition comprising compounds of formula (I) E-(L1-Z)n-L2-E ??(I) (b) a particulate filler; and (c) a photoinitiator.
    Type: Grant
    Filed: May 17, 2019
    Date of Patent: September 7, 2021
    Assignee: DENTSPLY SIRONA Inc.
    Inventors: Xiaoming Jin, Christos Angeletakis, Yi Liu, Joachim E. Klee, Christoph Weber, Xin Huo
  • Publication number: 20210186851
    Abstract: Copolymers are formed of monomers of poly(dimethylsiloxane) and poly(alkylene oxide) of the following formula: Ax-XCH2CH2—[ByCz]n—X-Ax. In the formula, each X independently represents a —CH2— group or an oxygen atom, A represents a polydimethylsiloxane derivative, B represents a polyethylene glycol unit, C represents a polypropylene glycol unit, x and n independently represent an integer from 1 to 150, and y and z independently represent an integer from 0 to 150. The copolymers can be used as emulsifiers in personal care compositions.
    Type: Application
    Filed: July 25, 2019
    Publication date: June 24, 2021
    Inventors: Thomas Guy ALABASTER, Hannah Ruth BEASLEY-SUFFOLK, John Mark BILNEY, Ella-Louise CERAULO, John Ing Chuan DALY, Ian Stuart PEARCE, Elizabeth Joan SMITH, Robert Liam SMITH, Christos ANGELETAKIS
  • Patent number: 10905634
    Abstract: Disclosed herein is a dental impression material that includes a two part addition curing silicone composition. The disclosed impression material contains a surfactant system composed of a fluorosurfactant and a fatty alcohol ethoxylate. The impression material disclosed herein exhibits improved storage stability than known systems using fluorosurfactants and silicone ether compounds.
    Type: Grant
    Filed: April 19, 2019
    Date of Patent: February 2, 2021
    Assignee: DENTSPLY SIRONA INC.
    Inventor: Christos Angeletakis
  • Publication number: 20190350817
    Abstract: A light-curable dental impression material comprising (a) a polymerizable polysiloxane resin composition comprising compounds of formula (I) E-(L1-Z)n-L2-E ??(I) (b) a particulate filler; and (c) a photoinitiator.
    Type: Application
    Filed: May 17, 2019
    Publication date: November 21, 2019
    Applicant: DENTSPLY SIRONA Inc.
    Inventors: Xiaoming JIN, Christos Angeletakis, Yi Liu, Joachim E. Klee, Christoph Weber, Xin Huo
  • Publication number: 20190298622
    Abstract: The present disclosure generally relates to a curable one part silicone composition. The curable one part silicone composition includes an organopolysiloxane compound having at least two unsaturated groups; an organohydrogenpolysiloxane compound having at least two Si—H groups; a catalyst for enabling the addition of the hydrogen atoms bonded to the silicone to the unsaturated group; and at least one surface treated particulate filler. The curable one part silicone composition is useful as a dental impression material. More particularly, the curable one part silicone composition including the surface treated filler extends storage stability of the dental impression material. The disclosure also provides methods of preparing such curable one part silicone composition.
    Type: Application
    Filed: March 29, 2019
    Publication date: October 3, 2019
    Applicant: DENTSPLY SIRONA Inc.
    Inventor: Christos ANGELETAKIS
  • Publication number: 20190240118
    Abstract: Disclosed herein is a dental impression material that includes a two part addition curing silicone composition. The disclosed impression material contains a surfactant system composed of a fluorosurfactant and a fatty alcohol ethoxylate. The impression material disclosed herein exhibits improved storage stability than known systems using fluorosurfactants and silicone ether compounds.
    Type: Application
    Filed: April 19, 2019
    Publication date: August 8, 2019
    Applicant: DENTSPLY SIRONA Inc.
    Inventor: Christos ANGELETAKIS
  • Patent number: 10307345
    Abstract: Disclosed herein is a dental impression material that includes a two part addition curing silicone composition. The disclosed impression material contains a surfactant system composed of a fluorosurfactant and a fatty alcohol ethoxylate. The impression material disclosed herein exhibits improved storage stability than known systems using fluorosurfactants and silicone ether compounds.
    Type: Grant
    Filed: November 2, 2016
    Date of Patent: June 4, 2019
    Assignee: DENTSPLY SIRONA Inc.
    Inventor: Christos Angeletakis
  • Publication number: 20180206956
    Abstract: A light curing impression system comprising a light emitting tray that precisely distributes an optimal amount of curing light energy to internal, external and extra oral portions of the dental arch to cure impression material. The light curing impression system generally includes an LED light source, a light emitting impression tray, an activation module and impression material.
    Type: Application
    Filed: January 25, 2018
    Publication date: July 26, 2018
    Applicant: DENTSPLY SIRONA Inc.
    Inventors: Paul Pierson, Naim Karazivan, Christos Angeletakis, Thomas Ruth, William Kane, Joseph Gordon, Luke Hagan, David Copeland, Andrew Burke, Dustin Gaidos, Leonid Silverman, Kenneth Focht
  • Publication number: 20180206947
    Abstract: A light curing dental system comprising a light emitting tray that precisely distributes an optimal amount of curing light energy to internal, external and extra oral portions of the dental arch to cure a dental material. The light curing dental system generally includes a light source, a light emitting dental tray, an activation module and a photocurable dental material.
    Type: Application
    Filed: January 25, 2018
    Publication date: July 26, 2018
    Applicant: DENTSPLY SIRONA Inc.
    Inventors: Paul Pierson, Naim Karazivan, Christos Angeletakis, Dustin Gaidos, Leonid Silverman, Xin HUO
  • Publication number: 20180206955
    Abstract: A light curing dental system comprising a light emitting tray that precisely distributes an optimal amount of curing light energy to internal, external and extra oral portions of the dental arch to cure a dental material. The light curing dental system generally includes a light source, a light emitting dental tray, an activation module and a photocurable dental material.
    Type: Application
    Filed: January 25, 2018
    Publication date: July 26, 2018
    Applicant: DENTSPLY SIRONA Inc.
    Inventors: Naim Karazivan, Paul Pierson, Christos Angeletakis
  • Publication number: 20180206957
    Abstract: A light curing dental system comprising a light emitting tray that precisely distributes an optimal amount of curing light energy to internal, external and extra oral portions of the dental arch to cure a dental material. The light curing dental system generally includes a light source, a light emitting dental tray, an activation module and a photocurable dental material.
    Type: Application
    Filed: January 25, 2018
    Publication date: July 26, 2018
    Applicant: DENTSPLY SIRONA Inc.
    Inventors: Thomas Ruth, William Kane, Joseph Gordon, Luke Hagan, David Copeland, Andrew Burke, Dustin Gaidos, Christos Angeletakis
  • Publication number: 20170296443
    Abstract: Disclosed herein is a dental impression material that includes a two part addition curing silicone composition. The disclosed impression material contains a surfactant system composed of a fluorosurfactant and a fatty alcohol ethoxylate. The impression material disclosed herein exhibits improved storage stability than known systems using fluorosurfactants and silicone ether compounds.
    Type: Application
    Filed: November 2, 2016
    Publication date: October 19, 2017
    Applicant: DENTSPLY SIRONA Inc.
    Inventor: Christos ANGELETAKIS
  • Patent number: 9044288
    Abstract: Disclosed herein is a two part retraction system that can be inserted into the sulcus to form a semi-rigid porous elastomer releasing a hemostatic agent suitable for sulcus retraction such that a dental impression may be completed by a dental practitioner.
    Type: Grant
    Filed: December 19, 2013
    Date of Patent: June 2, 2015
    Assignee: DENTSPLY International Inc.
    Inventor: Christos Angeletakis
  • Publication number: 20140227665
    Abstract: Disclosed herein are methods of treating an intraoral surface by applying a solution comprising a proteinaceous material and an aldehyde.
    Type: Application
    Filed: February 12, 2014
    Publication date: August 14, 2014
    Applicant: DENTSPLY International Inc.
    Inventor: Christos ANGELETAKIS
  • Publication number: 20140170596
    Abstract: Disclosed herein is a two part retraction system that can be inserted into the sulcus to form a semi-rigid porous elastomer releasing a hemostatic agent suitable for sulcus retraction such that a dental impression may be completed by a dental practitioner.
    Type: Application
    Filed: December 19, 2013
    Publication date: June 19, 2014
    Applicant: DENTSPLY International Inc.
    Inventor: Christos ANGELETAKIS