Patents Assigned to Pulpdent Corporation
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Patent number: 12185736Abstract: A food composition includes allulose having a concentration of about 60% to about 70% by weight, a cocoa product having a concentration of about 20% to about 30% by weight, and at least one natural plant resin having a concentration of about 0.37% to about 2.19% by weight. The at least one natural plant resin may be mastic gum and/or mastic powder. The food composition may further include a combination of plant-derived biominerals and/or antioxidants as active ingredients. A confectionary product made with the food composition is also disclosed.Type: GrantFiled: January 23, 2024Date of Patent: January 7, 2025Assignee: Pulpdent CorporationInventors: RuiQi Song, Kenneth Berk
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Patent number: 8735464Abstract: A radically curable polyurethane composite for dental restorations, including provisional restorations, includes polyurethane dimethacrylate prepolymers that have at least one flexible unit within a polyurethane dimethacrylate backbone, and one or more dimethacrylate monomers. Composite materials made with polyurethane dimethacrylate prepolymers of the invention exhibit superior and optimal properties of flexural strength and deflection-at-break relative to conventional dental resin composites. Composite materials of the invention also provide improved melt-resistance in response to the heat of grinding or finishing, thereby improving the fit of restorations made from the composite and preserving the finishing instruments. Methods of treating a tooth using the radically curable polyurethane composite and methods of making the polyurethane dimethacrylate prepolymers with flexible units is also provided. A kit including the radically curable polyurethane composite is also described.Type: GrantFiled: October 19, 2012Date of Patent: May 27, 2014Assignee: Pulpdent CorporationInventors: Sunny Skaria, Kenneth Berk
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Patent number: 8535058Abstract: An oil-free aqueous lecithin composition is suitable as a release agent and lubricant for dental procedures. Layered between a first entity and a second entity during a dental procedure, the composition promotes ready separation of the first entity from the second entity as needed in the procedure.Type: GrantFiled: January 28, 2010Date of Patent: September 17, 2013Assignee: Pulpdent CorporationInventors: Kenneth J. Berk, Anthony R. Silvestri, Jr.
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Publication number: 20130041067Abstract: A radically curable polyurethane composite for dental restorations, including provisional restorations, includes polyurethane dimethacrylate prepolymers that have at least one flexible unit within a polyurethane dimethacrylate backbone, and one or more dimethacrylate monomers. Composite materials made with polyurethane dimethacrylate prepolymers of the invention exhibit superior and optimal properties of flexural strength and deflection-at-break relative to conventional dental resin composites. Composite materials of the invention also provide improved melt-resistance in response to the heat of grinding or finishing, thereby improving the fit of restorations made from the composite and preserving the finishing instruments. Methods of treating a tooth using the radically curable polyurethane composite and methods of making the polyurethane dimethacrylate prepolymers with flexible units is also provided. A kit including the radically curable polyurethane composite is also described.Type: ApplicationFiled: October 19, 2012Publication date: February 14, 2013Applicant: PULPDENT CORPORATIONInventor: Pulpdent Corporation
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Patent number: 8292625Abstract: A radically curable polyurethane composite for dental restorations, including provisional restorations, includes polyurethane dimethacrylate prepolymers that have at least one flexible unit within a polyurethane dimethacrylate backbone, and one or more dimethacrylate monomers. Composite materials made with polyurethane dimethacrylate prepolymers of the invention exhibit superior and optimal properties of flexural strength and deflection-at-break relative to conventional dental resin composites. Composite materials of the invention also provide improved melt-resistance in response to the heat of grinding or finishing, thereby improving the fit of restorations made from the composite and preserving the finishing instruments. Methods of treating a tooth using the radically curable polyurethane composite and methods of making the polyurethane dimethacrylate prepolymers with flexible units is also provided. A kit including the radically curable polyurethane composite is also described.Type: GrantFiled: July 23, 2010Date of Patent: October 23, 2012Assignee: Pulpdent CorporationInventors: Sunny Skaria, Kenneth Berk
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Publication number: 20120021383Abstract: A radically curable polyurethane composite for dental restorations, including provisional restorations, includes polyurethane dimethacrylate prepolymers that have at least one flexible unit within a polyurethane dimethacrylate backbone, and one or more dimethacrylate monomers. Composite materials made with polyurethane dimethacrylate prepolymers of the invention exhibit superior and optimal properties of flexural strength and deflection-at-break relative to conventional dental resin composites. Composite materials of the invention also provide improved melt-resistance in response to the heat of grinding or finishing, thereby improving the fit of restorations made from the composite and preserving the finishing instruments. Methods of treating a tooth using the radically curable polyurethane composite and methods of making the polyurethane dimethacrylate prepolymers with flexible units is also provided. A kit including the radically curable polyurethane composite is also described.Type: ApplicationFiled: July 23, 2010Publication date: January 26, 2012Applicant: PULPDENT CORPORATIONInventors: Sunny Skaria, Kenneth Berk
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Patent number: 7371782Abstract: This invention relates to a polymerizable composite material and method of making same including at least one multifunctional acid containing monomer having a concentration ranging from about 10% to about 85%, a non-reactive filler having a concentration ranging from about 1% to about 80%, a polymerization system having a concentration ranging from about 1.5% to about 15%, and water having a concentration ranging from about 0.1% to about 25%.Type: GrantFiled: August 23, 2004Date of Patent: May 13, 2008Assignee: Pulpdent CorporationInventors: Jan G. Stannard, Kenneth J. Berk
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Patent number: 7157502Abstract: This invention relates to a polymerizable dental barrier material and method of making same including at least one high molecular weight polymer with reactive end groups having a concentration ranging from about 50 to about 99 percent by weight and a polymerization system.Type: GrantFiled: February 19, 2003Date of Patent: January 2, 2007Assignee: Pulpdent CorporationInventor: Jan G Stannard
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Patent number: 6797767Abstract: This invention relates to a polymerizable composite material and method of making at least one multifunctional acid containing monomer having a concentration ranging from about 10% to about 85%, a non-reactive filler having a concentration ranging from about 1% to about 80%, a polymerization system having a concentration ranging from about 1.5% to about 15%, and water having a concentration ranging from about 0.1% to about 25%.Type: GrantFiled: January 3, 2003Date of Patent: September 28, 2004Assignee: Pulpdent CorporationInventors: Jan G. Stannard, Kenneth J. Berk
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Publication number: 20040161724Abstract: This invention relates to a polymerizable dental barrier material and method of making same including at least one high molecular weight polymer with reactive end groups having a concentration ranging from about 50 to about 99 percent by weight and a polymerization system.Type: ApplicationFiled: February 19, 2003Publication date: August 19, 2004Applicant: Pulpdent CorporationInventor: Jan G. Stannard
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Patent number: 6595775Abstract: A dental mirror configured so that it is easier and more comfortable to manipulate than prior art mirrors. The dental mirror includes a handle which is attached to the mirror section with an s-shaped gooseneck so that the handle is offset upwardly. Additionally, grooves on the bottom and a finger rest on top at the distal end of the handle may be provided to further enhance it manipulatability.Type: GrantFiled: September 18, 2000Date of Patent: July 22, 2003Assignee: Pulpdent CorporationInventors: Kenneth J. Berk, Fredrick M. Berk, Donald Berk
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Patent number: 6159009Abstract: An improved amalgam or resin carrier, which has a plunger and lever mechanism similar to the well-known lever-actuated carrier and which has an easily replaceable sleeve or barrel for holding highly filled materials. The barrel may be easily removed for maintenance, cleaning, or replacement. In an alternate configuration, the barrel may be preloaded with a packable composite dental resin, thus allowing quick and easy clinical use. The preloaded barrel may be manufactured in the form of a disposable cartridge, and is especially suitable for use with light-activated materials.Type: GrantFiled: June 7, 1999Date of Patent: December 12, 2000Assignee: Pulpdent CorporationInventors: Kenneth J. Berk, Fredrick M. Berk, Donald Berk, Russell D. Jenkins
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Patent number: 6142777Abstract: A disposable dental mirror and methods of making same. The mirror includes a long, thin, flat blade that provides both a handle and a mirror mount and has a reflective surface applied to one end thereof. The blade is made of a material which need not be sterilizable, such as wood or plastic. In a one embodiment, the reflective surface is made of a metallized film directly applied to one surface of the blade. In an alternate embodiment, a thin, flat piece of a rigid material is located between the blade and the reflective film to ensure flatness of the reflecting surface, thereby reducing distortion.Type: GrantFiled: April 9, 1999Date of Patent: November 7, 2000Assignee: Pulpdent CorporationInventors: Paul E. Winston, Ronald B. Wasserman, Kenneth J. Berk, Fredrick M. Berk, Donald A. Berk
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Patent number: 6000535Abstract: An article of manufacture and a method of making same wherein a plurality of mixing wells is formed as a unitary sheet of individual mixing wells arranged in rows and columns. The boundary between each mixing well is scored, perforated, or otherwise made to allow individual pieces to be removed from the sheet. Preferably, the mixing wells may be pressure formed rather than being vacuum formed.Type: GrantFiled: February 18, 1998Date of Patent: December 14, 1999Assignee: Pulpdent CorporationInventors: Kenneth J. Berk, Frederick M. Berk, Donald Berk
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Patent number: 5181755Abstract: A small object handling device composed of an elongated rod with a wax composition coated over one end thereof. The invention further comprises an assembly of small object handling devices, with each composed of an elongated rod having a pressure sensitive adhesive composition coated over one end, and with the opposite end connected to a common rack. A flexible strip may cover the common rack and rods to protect the pressure sensitive adhesive ends of said rods and to provide a matchbook-like appearance. In an alternate embodiment, the device has a tubular member filled with pressure sensitive adhesive, with a rod adjustably coupled to one end of the member for forcing the pressure sensitive adhesive out from the opposite end.Type: GrantFiled: February 7, 1991Date of Patent: January 26, 1993Assignee: Pulpdent CorporationInventors: Lawrence J. Stanwich, Kenneth J. Berk, Fredrick M. Berk, Donald A. Berk