Patents by Inventor David E. White
David E. White 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).
-
Publication number: 20230098847Abstract: The invention provides heterocyclic compounds with quaternary centers and methods of preparing compounds. Methods include the method for the preparation of a compound of Formula (II): comprising treating a compound of Formula (I): with a transition metal catalyst and under alkylation conditions as valence and stability permit.Type: ApplicationFiled: July 18, 2022Publication date: March 30, 2023Inventors: Brian M. Stoltz, Scott C. Virgil, David E. White, Taiga Yurino, Yiyang Liu, Douglas C. Behenna, Douglas Duquette, Christian Eidamshaus
-
Patent number: 11390585Abstract: The invention provides heterocyclic compounds with quaternary centers and methods of preparing compounds. Methods include the method for the preparation of a compound of Formula (II): comprising treating a compound of Formula (I): with a transition metal catalyst and under alkylation conditions as valence and stability permit.Type: GrantFiled: February 1, 2021Date of Patent: July 19, 2022Assignee: California Institute of TechnologyInventors: Brian M. Stoltz, Scott C. Virgil, David E. White, Taiga Yurino, Yiyang Liu, Douglas C. Behenna, Douglas Duquette, Christian Eidamshaus
-
Publication number: 20210155592Abstract: The invention provides heterocyclic compounds with quaternary centers and methods of preparing compounds. Methods include the method for the preparation of a compound of Formula (II): comprising treating a compound of Formula (I): with a transition metal catalyst and under alkylation conditions as valence and stability permit.Type: ApplicationFiled: February 1, 2021Publication date: May 27, 2021Inventors: Brian M. Stoltz, Scott C. Virgil, David E. White, Taiga Yurino, Yiyang Liu, Douglas C. Behenna, Douglas Duquette, Christian Eidamshaus
-
Patent number: 10906875Abstract: The invention provides heterocyclic compounds with quaternary centers and methods of preparing compounds. Methods include the method for the preparation of a compound of Formula (II): comprising treating a compound of Formula (I): with a transition metal catalyst and under alkylation conditions as valence and stability permit.Type: GrantFiled: May 31, 2019Date of Patent: February 2, 2021Assignee: California Institute of TechnologyInventors: Brian M. Stoltz, Scott C. Virgil, David E. White, Taiga Yurino, Yiyang Liu, Douglas C. Behenna, Douglas Duquette, Christian Eidamshaus
-
Publication number: 20200157049Abstract: The invention provides heterocyclic compounds with quaternary centers and methods of preparing compounds. Methods include the method for the preparation of a compound of Formula (II): comprising treating a compound of Formula (I): with a transition metal catalyst and under alkylation conditions as valence and stability permit.Type: ApplicationFiled: May 31, 2019Publication date: May 21, 2020Inventors: Brian M. Stoltz, Scott C. Virgil, David E. White, Taiga Yurino, Yiyang Liu, Douglas C. Behenna, Douglas Duquette, Christian Eidamshaus
-
Patent number: 10343996Abstract: The invention provides heterocyclic compounds with quaternary centers and methods of preparing compounds. Methods include the method for the preparation of a compound of Formula (II): comprising treating a compound of Formula (I): with a transition metal catalyst and under alkylation conditions as valence and stability permit.Type: GrantFiled: July 30, 2018Date of Patent: July 9, 2019Assignee: California Institute of TechnologyInventors: Brian M. Stoltz, Scott C. Virgil, David E. White, Taiga Yurino, Yiyang Liu, Douglas C. Behenna, Douglas Duquette, Christian Eidamshaus
-
Publication number: 20180339968Abstract: The invention provides heterocyclic compounds with quaternary centers and methods of preparing compounds. Methods include the method for the preparation of a compound of Formula (II): comprising treating a compound of Formula (I): with a transition metal catalyst and under alkylation conditions as valence and stability permit.Type: ApplicationFiled: July 30, 2018Publication date: November 29, 2018Inventors: Brian M. Stoltz, Scott C. Virgil, David E. White, Taiga Yurino, Yiyang Liu, Douglas C. Behenna, Douglas Duquette, Christian Eidamshaus
-
Patent number: 10035769Abstract: The invention provides heterocyclic compounds with quaternary centers and methods of preparing compounds. Methods include the method for the preparation of a compound of Formula (II): comprising treating a compound of Formula (I): with a transition metal catalyst and under alkylation conditions as valence and stability permit.Type: GrantFiled: December 1, 2016Date of Patent: July 31, 2018Assignee: California Institute of TechnologyInventors: Brian M. Stoltz, Scott C. Virgil, David E. White, Taiga Yurino, Yiyang Liu, Douglas C. Behenna, Douglas Duquette, Christian Eidamshaus
-
Publication number: 20170137382Abstract: The invention provides heterocyclic compounds with quaternary centers and methods of preparing compounds. Methods include the method for the preparation of a compound of Formula (II): comprising treating a compound of Formula (I): with a transition metal catalyst and under alkylation conditions as valence and stability permit.Type: ApplicationFiled: December 1, 2016Publication date: May 18, 2017Inventors: Brian M. Stoltz, Scott C Virgil, David E. White, Taiga Yurino, Yiyang Liu, Douglas C. Behenna, Douglas Duquette, Christian Eidamshaus
-
Publication number: 20150066705Abstract: In some embodiments, the instant invention provides for a method being implemented by an electronic search engine system, including the steps of: storing at least: visual presentations associated with a plurality of providers of products and/or services; and visual presentations of the products and/or the services; causing to concurrently display a first graphical user search interface to a plurality of users to allow each user to submit a search query; based on query data, searching for a subset of providers that offer product and/or service; where each visual presentations associated with each provider is configured to result in displaying the visual presentations of the product and/or the service, in response to a single action performed by such user; causing to display a second graphical user search interface to such user; where the second graphical user search interface displays the visual presentations associated with the subset of providers.Type: ApplicationFiled: September 5, 2014Publication date: March 5, 2015Inventor: David E. White
-
Publication number: 20130267699Abstract: The invention provides heterocyclic compounds with quaternary centers and methods of preparing compounds. Methods include the method for the preparation of a compound of Formula (II): comprising treating a compound of Formula (I): with a transition metal catalyst and under alkylation conditions as valence and stability permit.Type: ApplicationFiled: March 12, 2013Publication date: October 10, 2013Inventors: Brian M. Stoltz, Scott C. Virgil, David E. White, Taiga Yurino, Yiyang Liu, Douglas C. Behenna, Douglas Duquette, Christian Eidamshaus
-
Publication number: 20130012701Abstract: A compound useful as a building block for the manufacture of various compounds is represented by Formula A or D. In Formula A and D, z is 0 or 1; Q is a heteroatom; R1 through R11 and Ra through Rf are each independently hydrogen, a substituted or unsubstituted hydrocarbyl group, a substituted or unsubstituted heteroatom containing hydrocarbyl group, or a functional group; d, e and f are each independently 0 or greater; each of A, B and D is independently a carbon atom or a heteroatom; and two or more of R1 though R11, Ra through Rf and Y optionally combine to form a ring. In some embodiments, R8 and R9 combine to form a carbonyl group. In some embodiments, R2 and Y combine to form a ring with the Q atom. In some embodiments, the ring includes at least one double bond.Type: ApplicationFiled: June 22, 2012Publication date: January 10, 2013Applicant: California Institute of TechnologyInventors: Brian M. Stoltz, Scott C. Virgil, David E. White, Taiga Yurino, Yiyang Liu, Douglas C. Behenna, Douglas Duquette, Christian Eidamshaus
-
Patent number: 5863389Abstract: An apparatus for delignifying and bleaching a lignocellulosic pulp without the use of elemental chlorine. The bleaching reactor is a horizontal vessel having a central rotatable shaft which preferably contains paddles, cut and folded screw flights or a ribbon flight, to disperse and advance the pulp particles in a plug flow manner while contacting and mixing the pulp particles with a gaseous bleaching agent such as ozone for substantially uniform bleaching thereof.Type: GrantFiled: March 8, 1994Date of Patent: January 26, 1999Assignee: Union Camp Patent Holding, Inc.Inventors: David E. White, Michael A. Pikulin, Thomas P. Gandck, William H. Friend
-
Patent number: 5520783Abstract: An apparatus and method for bleaching high consistency lignocellulosic pulp using ozone supplied in an ozone containing gas. The bleaching reactor apparatus according to the invention is a generally cylindrical vessel itself being rotatable or with a rotatable shaft having radially extending paddles arranged in a configuration to minimize axial dispersion of the pulp and maximize radial dispersion of the pulp to provide a radially dispersed plug flow of pulp through the reactor in the presence of the ozone to provide substantially uniformly bleached pulp.Type: GrantFiled: January 25, 1993Date of Patent: May 28, 1996Assignee: Union Camp Patent Holding, Inc.Inventors: David E. White, Michael A. Pikulin, Thomas P. Gandek, William H. Friend, Stuart T. Jones
-
Patent number: 5472572Abstract: An apparatus and method for bleaching high consistency lignocellulosic pulp using ozone supplied in an ozone containing gas. The bleaching reactor apparatus according to the invention is a generally cylindrical vessel with a rotatable shaft having radially extending paddles arranged in a configuration to minimize axial dispersion of the pulp and maximize radial dispersion of the pulp to provide a radially dispersed plug flow of pulp through the reactor in the presence of the ozone to provide substantially uniformly bleached pulp.Type: GrantFiled: January 15, 1992Date of Patent: December 5, 1995Assignee: Union Camp Patent Holding, Inc.Inventors: David E. White, Michael A. Pikulin, Thomas P. Gandek, William H. Friend
-
Patent number: 5409570Abstract: A process for delignifying and bleaching a lignocellulosic pulp without the use of elemental chlorine or chlorine-containing compounds by oxygen delignifying the pulp to a K No. of about 14 or less and a viscosity of greater than about 10 cps and thereafter further delignifying the partially delignified pulp by lifting, displacing and tossing the pulp in a radial direction while advancing it in an axial direction in a plug flow-like manner with an effective amount of ozone for a sufficient time to obtain a substantially delignified pulp having a K No. of about 6 or less, a viscosity of at least about 7 cps and a GE brightness of at least about 35. The substantially delignified pulp may then be brightened to a final product having a GE brightness of at least about 75, or alternately up to about 83 or more by contacting the ozonated pulp with chlorine dioxide or a peroxide compound.Type: GrantFiled: November 25, 1992Date of Patent: April 25, 1995Assignee: Union Camp Patent Holding, Inc.Inventors: Bruce F. Griggs, Thomas P. Gandek, Michael A. Pikulin, Allen Rosen, Stuart T. Terrett, Spencer W. Eachus, David E. White, William H. Friend, Omar F. Ali
-
Patent number: 5181989Abstract: An apparatus for delignifying and bleaching a lignocellulosic pulp without the use of elemental chlorine. The bleaching reactor is a horizontal vessel having a central rotatable shaft which preferably contains paddles, cut and folded screw flights or a ribbon flight, to disperse and advance the pulp particles in a plug flow manner while contacting and mixing the pulp particles with a gaseous bleaching agent such as ozone for substantially uniform bleaching thereof.Type: GrantFiled: October 26, 1990Date of Patent: January 26, 1993Assignee: Union Camp Patent Holdings, Inc.Inventors: David E. White, Michael A. Pikulin, Thomas P. Gandek, William H. Friend
-
Patent number: 5174861Abstract: A method for delignifying and bleaching a lignocellulosic pulp with a gaseous bleaching agent in a reactor without the use of elemental chlorine. The bleaching reactor is a horizontal vessel having a central rotatable shaft which preferably contains paddles, cut and folded screw flights or a ribbon flight, to disperse and advance the pulp particles in a plug flow manner while contacting and mixing the pulp particles with a gaseous bleaching agent such as ozone for substantially uniform bleaching thereof.Type: GrantFiled: August 28, 1991Date of Patent: December 29, 1992Assignee: Union Camp Patent Holdings, Inc.Inventors: David E. White, Michael A. Pikulin, Thomas P. Gandek, William H. Friend
-
Patent number: 5129543Abstract: A recycling container is provided with an outer container formed with a flase bottom for supporting four inner containers for respectively receiving three different recyclables and the regular garbage of a family's refuse. The inner containers, which are of different sizes, have shapes complementary to the outer container and each other to make for a compact arrangement. Below the false bottom, the outer container houses a drawer of dimensions adequate to hold the family's newspapers received between pickup collections. Of course, the recycling container is sized so as to hold the different elements of the family's refuse between collections. The largest of the inner containers may be essentially a semi-cylinder to contain the regular garbage. A cover having two portions pivotally interconnected by a life hinge, may be placed on the outer container so that one portion overlies the inner container that is a semi-cylinder and the other portion overlies the other three inner containers.Type: GrantFiled: May 1, 1991Date of Patent: July 14, 1992Inventor: David E. White
-
Patent number: 4660117Abstract: A disk cartridge file employs a cartridge which is a rigid enclosure containing a flexible information storage disk mounted on a drive hub. One wall of the cartridge comprises a central hub drive aperture and an arcuate radially extending access slot for a read/write transducer. In operation, the disk flies over the inner surface of the apertured wall on an air bearing. This surface is planar over a major portion including the access slot but has a smoothly contoured raised land bordering the slot on the downstream side thereof. When employed in combination with a transducer of the ring stabilized type which projects through the slot and penetrates into the normal path of the medium, the transducer is coupled with the medium in a stable closely spaced air bearing relationship. The raised land extends the range of penetration over which the transducer is coupled, particularly at the outer diameter of the disk.Type: GrantFiled: November 29, 1984Date of Patent: April 21, 1987Assignee: International Business Machines CorporationInventors: Paul D. Carey, Stanley J. Cutts, John S. Heath, David E. White, David A. Evans