Patents by Inventor Richard Tuttle
Richard Tuttle 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: 11926642Abstract: The invention relates to compounds of formula I wherein R1, R2 and - - - - - are as defined herein, pharmaceutical compositions comprising the compounds and methods of treating COVID-19 in a patient by administering therapeutically effective amounts of the compounds and methods of inhibiting or preventing replication of SARS-CoV-2 with the compounds.Type: GrantFiled: July 1, 2021Date of Patent: March 12, 2024Assignee: Pfizer inc.Inventors: Robert Steven Kania, Padmavani Bezawada, Emma Louise Hawking, Rohit Jaini, Samir Kulkarni, Matthew Nathan O'Brien Laramy, Jonathan Richard Lillis, Suman Luthra, Dafydd Rhys Owen, Klimentina Dimitrova Pencheva, Anil Mahadeo Rane, Matthew Forrest Sammons, Bradley Paul Sullivan, Andrew John Thiel, Martyn David Ticehurst, Jamison Bryce Tuttle, Robert Louis Hoffman
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Patent number: 7833015Abstract: Kits and methods facilitate chair-side coating of an endodontic cone for improved sealing between the hydrophilic root canal tissue, the hydrophobic elastomer substrate of the endodontic cone, and a hydrophilic sealing resin. The kit includes one or more endodontic cones (e.g., formed of gutta percha) and a micro-dose container containing an adhesive composition. The practitioner can dip the cones into the adhesive composition so as to coat the cones chair-side, just prior to use. The adhesive composition includes an adhesive resin compound comprising at least one hydrophobic region and at least one hydrophilic region. The hydrophobic region is compatible with the hydrophobic elastomer substrate of the endodontic cone, while the hydrophilic region is compatible with a hydrophilic endodontic sealing resin.Type: GrantFiled: March 26, 2007Date of Patent: November 16, 2010Assignee: Ultradent Products, Inc.Inventors: Richard Tuttle, Jeff Wagner, Neil Jessop, Jaleena Fischer-Jessop
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Publication number: 20100043876Abstract: Improved organic photovoltaic cells including a composition useful for forming an active layer which comprises (a) at least one p-type material, (b) at least one n-type material, (c) at least one first solvent and (d) at least one second solvent, wherein the first solvent is different from the second solvent, and the first solvent comprises at least one alkylbenzene or benzocyclohexane, and the second solvent comprises at least one carbocyclic compound. The second solvent can be used in lesser amounts but can improve efficiency in cells.Type: ApplicationFiled: August 14, 2009Publication date: February 25, 2010Inventors: Richard Tuttle, Matthew Ladd Reitz, Brian E. Woodworth
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Patent number: 7503905Abstract: A venting syringe plunger assembly for use with a syringe system allows for venting of gas from the syringe system during use. The plunger assembly includes a hollow outer sleeve having an interior surface, and an inner stem having an exterior surface. At least a portion of the inner stem is disposed within the outer sleeve so as to be movable (e.g., slidable) within the outer sleeve. A venting passageway is defined between the interior surface of the outer sleeve and the exterior surface of the inner stem. The plunger assembly also includes means for selectively moving the inner stem within the outer sleeve so as to selectively open and close the venting passageway.Type: GrantFiled: October 3, 2005Date of Patent: March 17, 2009Assignee: Ultradent Products, Inc.Inventors: Neil Jessop, Bruce S. McLean, Richard Tuttle, Dan J. Bills, Jared Sheetz
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Publication number: 20080286723Abstract: Kits and methods facilitate chair-side coating of an endodontic cone for improved sealing between the hydrophilic root canal tissue, the hydrophobic elastomer substrate of the endodontic cone, and a hydrophilic sealing resin. The kit includes one or more endodontic cones (e.g., formed of gutta percha) and a micro-dose container containing an adhesive composition. The practitioner can dip the cones into the adhesive composition so as to coat the cones chair-side, just prior to use. The adhesive composition includes an adhesive resin compound comprising at least one hydrophobic region and at least one hydrophilic region. The hydrophobic region is compatible with the hydrophobic elastomer substrate of the endodontic cone, while the hydrophilic region is compatible with a hydrophilic endodontic sealing resin.Type: ApplicationFiled: August 1, 2008Publication date: November 20, 2008Applicant: Ultradent Products, Inc.Inventors: Richard Tuttle, Jeff Wagner, Neil Jessop, Jaleena Fischer-Jessop
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Publication number: 20080241799Abstract: Kits and methods facilitate chair-side coating of an endodontic cone for improved sealing between the hydrophilic root canal tissue, the hydrophobic elastomer substrate of the endodontic cone, and a hydrophilic sealing resin. The kit includes one or more endodontic cones (e.g., formed of gutta percha) and a micro-dose container containing an adhesive composition. The practitioner can dip the cones into the adhesive composition so as to coat the cones chair-side, just prior to use. The adhesive composition includes an adhesive resin compound comprising at least one hydrophobic region and at least one hydrophilic region. The hydrophobic region is compatible with the hydrophobic elastomer substrate of the endodontic cone, while the hydrophilic region is compatible with a hydrophilic endodontic sealing resin.Type: ApplicationFiled: March 26, 2007Publication date: October 2, 2008Applicant: Ultradent Products, Inc.Inventors: Richard Tuttle, Jeff Wagner, Neil Jessop, Jaleena Fischer-Jessop
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Publication number: 20070078392Abstract: A venting syringe plunger assembly for use with a syringe system allows for venting of gas from the syringe system during use. The plunger assembly includes a hollow outer sleeve having an interior surface, and an inner stem having an exterior surface. At least a portion of the inner stem is disposed within the outer sleeve so as to be movable (e.g., slidable) within the outer sleeve. A venting passageway is defined between the interior surface of the outer sleeve and the exterior surface of the inner stem. The plunger assembly also includes means for selectively moving the inner stem within the outer sleeve so as to selectively open and close the venting passageway.Type: ApplicationFiled: October 3, 2005Publication date: April 5, 2007Inventors: Neil Jessop, Bruce McLean, Richard Tuttle, Dan Bills, Jared Sheetz
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Publication number: 20070065783Abstract: Activating endodontic points and dental tools are sized and configured to be placed in the root canal of a tooth. The activating endodontic points or dental tools are coated or impregnated with a curing agent that initiates or accelerates polymerization of a sealer or filler composition when placed in contact with the sealer or filler material. Curing agents can include amines that can destabilize a peroxide in the sealer or filler material to initiate or accelerate polymerization, or they may comprise the peroxide. An implement can be dipped in a concentrated curing composition just prior to inserting the implement into a root canal to contact the filler or sealer composition. Kits may include a plurality of curing agent compositions having different concentrations and/or amounts of curing agent. Kits may also include a curable resin material that includes a first part of a multi-part curing system and a curing composition that includes, as curing agent a complementary part of the curing system.Type: ApplicationFiled: September 11, 2006Publication date: March 22, 2007Applicant: Ultradent Products, Inc.Inventors: Richard Tuttle, Jeff Wagner, Neil Jessop, Jaleena Fischer-Jessop
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Patent number: 6272850Abstract: An electronic engine controller controls the catalytic converter temperature by generating a desired rich air/fuel ratio that will maintain the catalytic converter at a predetermined temperature. The actual air/fuel ratio is ramped to the desired air/fuel ratio at a first rate when the catalytic converter temperature is greater than a first predetermined temperature. The actual air/fuel ratio is ramped to the desired air/fuel ratio at a second rate when the catalytic converter temperature is greater than a second predetermined temperature but less than the first predetermined temperature.Type: GrantFiled: December 8, 1998Date of Patent: August 14, 2001Assignee: Ford Global Technologies, Inc.Inventors: Robert Michael Grant, Eugene S. Zimmerman, Michael John Cullen, Patrick Joseph Curran, Richard Tuttle
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Patent number: 5893247Abstract: A coping system for parapet is comprised of three separate components, a plurality of cleats, a plurality of chairs and a plurality of caps. The cleats are secured to the parapet at spaced intervals and each cleat supports a corresponding chair. Each cap extends between at least two cleats and chairs. Adjacent caps are spaced from each other forming a gap between the caps with the gap being located directly above the chair. The chair forms a gutter for routing water away from the top of the parapet. The chair biases the cap away from the parapet to maintain the engagement between the cap and the cleat. All three components are made entirely of metal providing a sealed joint between adjacent caps without the use of organic compounds.Type: GrantFiled: January 13, 1998Date of Patent: April 13, 1999Assignee: W. P. Hickman CompanyInventors: John B. Hickman, Kevin Pressley, Rick Rhinehart, Curtis Roberts, Don Schultz, Richard Tuttle
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Patent number: 5502998Abstract: An air sampling device and method to produce simulated samples of airborne substances obtained from institutional and industrial facilities. The device features 1) an environment container, 2) an ejector for introducing a contaminant into the container environment, 3) a sample collection holder to hold a filter, 4) a pump to withdraw the container environment and contaminant out of the container in a fashion that allows collection of the contaminant on the filter, and 5) a container inlet to allow replacement environment to enter the container.Type: GrantFiled: April 25, 1994Date of Patent: April 2, 1996Assignee: The Procter and Gamble CompanyInventors: Larry S. Miller, Ken W. Lee, Doyle F. Kohler, Randy Jones, Richard Tuttle