Patents by Inventor Nancy N. Quan
Nancy N. Quan 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).
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Patent number: 9138386Abstract: A two-component whitening system has a de-sensitizing effect as well as re-mineralizing capability. The system may be an unfoamed, a foamed or a foamable composition. The system has a first component with at least one peroxide compound, at least one source of phosphate and at least one gelling agent; and a second component with at least one source of calcium, strontium and/or mixtures thereof. The second component may also contain at least one gelling agent, and the composition maybe present as a foam or is foamable. The composition may be packed in a two-compartment syringe.Type: GrantFiled: November 16, 2010Date of Patent: September 22, 2015Assignee: DISCUS DENTAL, LLCInventors: Jeff MacDonald, Nancy N. Quan, Robert Hayman
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Patent number: 9039412Abstract: A dental illumination apparatus includes a lamp system mounted on a support structure. The lamp system includes a light source. A control system is provided for controlling the activation of the lamp system. A light guide shields soft tissues local to teeth of a subject from effects of ultraviolet radiation. The light guide includes a lamp attachment formation coupled to the lamp system, and a recording device in communication with the control system, the recording device including memory which stores the amount of time that the light source has been on since the beginning of a treatment procedure. A lip retractor, coupled to the light guide, is adapted to receive the lips of a patient.Type: GrantFiled: November 21, 2013Date of Patent: May 26, 2015Assignee: Discus Dental, LLCInventors: Eric P. Rose, Robert Hayman, Stuart Karten, Dennis Schroeder, Steve Piorek, Douglas H. Grambush, Marc Orloff, Nancy N. Quan, Younes Shabany, William Dorfman, Kenneth Rosenblood, Dac Vu, Curt Kenneth Deckert, Brian Kennedy, Christopher N. Quan
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Publication number: 20140186792Abstract: A dental illumination apparatus includes a lamp system mounted on a support structure. The lamp system includes a light source. A control system is provided for controlling the activation of the lamp system. A light guide shields soft tissues local to teeth of a subject from effects of ultraviolet radiation. The light guide includes a lamp attachment formation coupled to the lamp system, and a recording device in communication with the control system, the recording device including memory which stores the amount of time that the light source has been on since the beginning of a treatment procedure. A lip retractor, coupled to the light guide, is adapted to receive the lips of a patient.Type: ApplicationFiled: November 21, 2013Publication date: July 3, 2014Applicant: DISCUS DENTAL, LLCInventors: Eric P. ROSE, Robert HAYMAN, Stuart KARTEN, Dennis SCHROEDER, Steve PIOREK, Douglas H. GRAMBUSH, Marc ORLOFF, Nancy N. QUAN, Younes SHABANY, William DORFMAN, Kenneth ROSENBLOOD, Dac VU, Curt Kenneth DECKERT, Brian KENNEDY, Christopher N. QUAN
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Patent number: 8613616Abstract: A dental illumination system includes an adjustable self-supporting frame and a lamp head coupled to the frame. The lamp head includes a housing and a spacer having formations that is adapted to removably mechanically couple the lamp head to a reference device, again having formations, for facilitating illumination of a tooth by a light source contained within the lamp head. The spacer and lamp head may be formed integrally. If formed separately, both the lamp head and the spacer may include formations.Type: GrantFiled: October 26, 2007Date of Patent: December 24, 2013Assignee: Discus Dental, LLCInventors: Eric P. Rose, Robert Hayman, Stuart Karten, Dennis Schroeder, Steve Piorek, Douglas H. Grambush, Marc Orloff, Nancy N. Quan, Younes Shabany, William Dorfman, Kenneth Rosenblood, Dac Vu, Curt Kenneth Deckert, Brian Kennedy, Christopher N. Quan
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Publication number: 20110059030Abstract: A two-component whitening system has a de-sensitizing effect as well as re-mineralizing capability. The system may be an unfoamed, a foamed or a foamable composition. The system has a first component with at least one peroxide compound, at least one source of phosphate and at least one gelling agent; and a second component with at least one source of calcium, strontium and/or mixtures thereof. The second component may also contain at least one gelling agent, and the composition maybe present as a foam or is foamable. The composition may be packed in a two-compartment syringe.Type: ApplicationFiled: November 16, 2010Publication date: March 10, 2011Applicant: DISCUS DENTAL, LLCInventors: Jeff MacDonald, Nancy N. Quan, Robert Hayman
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Publication number: 20080166685Abstract: The present invention relates to a wireless remote control for dental equipment, such as dental scaler tools, dental drills, prophy angles and other rotary instruments. The wireless control switch can control the on and off state of the dental tool, or it can also be programmed to control the speed of the tool by a switch on the tool. The wireless control switch can be in the form of, for example, a foot switch, and replaces manual and foot operated controls formerly connected by cables to the dental tools. This removes a potential safety hazard in the dentist's office and makes the equipment control more versatile and easier to adapt to various office conditions. The wireless control can be battery powered, further eliminating the need for cables.Type: ApplicationFiled: October 29, 2007Publication date: July 10, 2008Applicant: Discus Dental, LLCInventors: Kenneth Rosenblood, Haim Levy, Ben Atkin, Nancy N. Quan
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Patent number: 7273369Abstract: The present invention relates to a curing light suitable for curing light curable dental composite materials. The curing light device has a light module housing having at least one heat sink located therein. The heat sink has at least two mounting platforms arranged in different geometric arrangements. More than two light sources may be used, emitting at least two different wavelengths. The curing light includes at least one heat sink having various geometric shapes, which facilitate the arrangement of the light sources in the curing light and minimizing the concentration.Type: GrantFiled: June 30, 2005Date of Patent: September 25, 2007Assignee: Discus Dental, LLCInventors: Kenneth Rosenblood, Nancy N. Quan, Eric P. Rose
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Patent number: 5371560Abstract: An improved envelope for transparencies for overhead projectors comprising a substantially rectangular pocket made of a transparent sheet material, the pocket having two longitudinal side edges connected by shorter side edges, and being open at least along one side edge for insertion of a transparency, at least one opaque flap attached in a foldable manner along one of the side edges by means of a flexible adhesive tape, the tape comprising a flexible polyester backing having a thickness of from about 5 to about 15 micrometers, and coated on one surface of the backing is an adhesive layer, wherein the tape has a flexibility measurement of about 1.8 grams, and the flap is capable of remaining in the unfolded position on an overhead projector stage with minimal adhesive transfer at the operating temperature of the overhead projector.Type: GrantFiled: March 26, 1993Date of Patent: December 6, 1994Assignee: Minnesota Mining and Manufacturing CompanyInventors: Douglas A. Kiehne, Kenneth W. Luthy, Nancy N. Quan
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Patent number: 4833056Abstract: A triboelectrically chargeable monocomponent toner powder is provided which comprises as a binder a mixture of a copolymer of styrene and an acrylate with an amine-containing aliphatic wax as a charge-control agent. The toner is inherently strongly chargeable positively through triboelectric forces.Type: GrantFiled: February 11, 1988Date of Patent: May 23, 1989Assignee: Minnesota Mining and Manufacturing CompanyInventors: Sudershan K. Bhateja, Chung I. Young, Nancy N. Quan
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Patent number: 4745418Abstract: A non-fusible, monocomponent toner is described which comprises an organic resin having a high fusion point, a magnetically responsive material admixed therewith, and an electrically conductive surface. The toner is capable of being repeatedly used.Type: GrantFiled: April 30, 1986Date of Patent: May 17, 1988Assignee: Minnesota Mining and Manufacturing CompanyInventors: Thomas J. Brennan, Nancy N. Quan
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Patent number: 4643960Abstract: A toner powder comprising a thermoplastic binder, a pigment, and a fatty acid amide containing at least about ten carbon atoms is provided. Addition of the amide has no deleterious effects upon the composition yet renders the toner readily processable.Type: GrantFiled: June 6, 1984Date of Patent: February 17, 1987Assignee: Minnesota Mining and Manufacturing CompanyInventor: Nancy N. Quan