Patents by Inventor Patrick L. Roetzer

Patrick L. Roetzer 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: 10092371
    Abstract: An occlusal cutting and sculpting device for dental applications utilizing a cutting head having a tapered abrasive surface. The cutting head terminates in first and second end portions. A collar overlies and connects to the first end portion of the cutting head and is constructed with a first surface extending outwardly from the cutting head and a curved second surface adjacent the first surface lying apart from the cutting head.
    Type: Grant
    Filed: August 30, 2016
    Date of Patent: October 9, 2018
    Inventor: Patrick L. Roetzer
  • Patent number: 8070490
    Abstract: An apparatus for separating teeth utilizing a base member having a first end portion, a second end portion, and an intermediate portion. A first spring extends outwardly from the first end portion while a second spring extends outwardly from the second portion of the base member. A lingual shield spans the distal portions of the first and second springs extending from the base member. A pair of tines overlap one another, one tine extending from the base member, the other extending from the shield. The first and second springs urge the meeting or overlapping of the first and second tines in the vicinity of gap for meeting place between a pair of teeth.
    Type: Grant
    Filed: April 29, 2010
    Date of Patent: December 6, 2011
    Assignee: Danville Materials, Inc
    Inventors: Patrick L. Roetzer, Craig Bruns
  • Patent number: 7347692
    Abstract: A dental bur structure including a rotatable shaft turned by a motor. The shaft possesses a proximal portion having a fluted surface. The bur also possesses a distal portion with a smooth surface tip which generates heat to melt a composite post matrix upon activation of the shaft. The fluted surface removes a composite material while the smooth tip serves as a guide for the bur.
    Type: Grant
    Filed: December 3, 2003
    Date of Patent: March 25, 2008
    Inventors: Patrick L. Roetzer, Michael Feldman
  • Patent number: 7137813
    Abstract: A dental impression dam system utilizing an open tray forming a basin for dental impression material. The basin of the tray includes a gap at an extremity of the same. A flexible band of material bridges the gap of the tray basin and interacts with the dental material to form unit. The band adheres to the external wall portions of the tray when in place.
    Type: Grant
    Filed: November 19, 2004
    Date of Patent: November 21, 2006
    Inventor: Patrick L. Roetzer
  • Patent number: 6902400
    Abstract: A dental bur structure including a rotatable shaft turned by a motor. The shaft possesses a proximal portion having a fluted surface. The bur also possesses a distal portion with a smooth surface tip which generates heat to melt a composite post matrix upon activation of the shaft. The fluted surface removes a composite material while the smooth tip serves as a guide for the bur.
    Type: Grant
    Filed: October 18, 2002
    Date of Patent: June 7, 2005
    Inventor: Patrick L. Roetzer
  • Patent number: 6817861
    Abstract: A dental impression dam system utilizing an open tray forming a basin for dental impression material. The basin of the tray includes a gap at an extremity of the same. A flexible band of material bridges the gap of the tray basin and interacts with the dental material to form unit. The band adheres to the external wall portions of the tray when in place.
    Type: Grant
    Filed: April 9, 2002
    Date of Patent: November 16, 2004
    Inventor: Patrick L. Roetzer
  • Patent number: 6752630
    Abstract: A dental retractor system used to manipulate positioning of the cheeks and to control saliva flow. The system includes a handle connected to first and second legs that are extended from the handle in a fork or horseshoe configuration. A pair of flaps distend from the legs and are angularly arranged to lie adjacent inner cheeks of the patient with or without interaction with a dry angle.
    Type: Grant
    Filed: April 9, 2002
    Date of Patent: June 22, 2004
    Inventor: Patrick L. Roetzer
  • Publication number: 20040091835
    Abstract: A dental retractor system used to manipulate positioning of the cheeks and to control saliva flow. The system includes a handle connected to first and second legs that are extended from the handle in a fork or horseshoe configuration. A pair of flaps distend from the legs and are angularly arranged to lie adjacent inner cheeks of the patient with or without interaction with a dry angle.
    Type: Application
    Filed: April 9, 2002
    Publication date: May 13, 2004
    Inventor: Patrick L. Roetzer
  • Publication number: 20040081940
    Abstract: A dental bur structure including a rotatable shaft turned by a motor. The shaft possesses a proximal portion having a fluted surface. The bur also possesses a distal portion with a smooth surface tip which generates heat to melt a composite post matrix upon activation of the shaft. The fluted surface removes a composite material while the smooth tip serves as a guide for the bur.
    Type: Application
    Filed: December 3, 2003
    Publication date: April 29, 2004
    Inventors: Patrick L. Roetzer, Michael Feldman
  • Patent number: 6386865
    Abstract: A process for the fabrication of indirect dental restoratives includes the making of a first, pre-operative impression of a tooth to be restored using a first polyvinyl silicone (PVS) material disposed in a clear tray, followed by the preparation of the tooth. A second, final post-operative impression of the tooth is taken utilizing a second PVS material. A tooth model is then made by pouring a low viscosity and suitably rigid, third PVS material into the final impression. Prior to the complete setting of the low viscosity PVS material, a higher viscosity, fourth PVS material is applied onto the model PVS material to form a completed model with base. The model is then fitted into the pre-operative impression matrix made from the first PVS material. Layers of composite are packed onto the impression in the clear matrix.
    Type: Grant
    Filed: August 10, 1999
    Date of Patent: May 14, 2002
    Assignee: Bisco Inc.
    Inventors: Byoung I. Suh, Patrick L. Roetzer, Rich Nagel