Patents by Inventor Eric McFarland
Eric McFarland 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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Publication number: 20030032205Abstract: Methods and apparatus are provided for the preparation of a substrate having an array of diverse materials, the materials being deposited at spatially addressable, predefined regions. In particular, potential masking systems are provided which generate spatially and temporally varying electric, magnetic and chemical potentials across a substrate. These varying potentials are used to deposit components of source materials onto a substrate in a combinatorial fashion, thus creating arrays of materials that differ slightly in chemical composition, concentration, stoichiometry, and/or thickness. The diverse materials may be organized in discrete arrays, or they may vary continuously over the surface of the substrate. The shape of the potential allows the determination of the composition of the resulting materials at all locations on the substrate.Type: ApplicationFiled: August 27, 2002Publication date: February 13, 2003Applicant: SYMYX TECHNOLOGIESInventors: Eric McFarland, Earl Danielson, Martin Devenney, Christopher J. Warren
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Publication number: 20030026736Abstract: An apparatus and method for carrying out and monitoring the progress and properties of multiple reactions is disclosed. The method and apparatus are especially useful for synthesizing, screening, and characterizing combinatorial libraries, but also offer significant advantages over conventional experimental reactors as well. The apparatus generally includes multiple vessels for containing reaction mixtures, and systems for controlling the stirring rate and temperature of individual reaction mixtures or groups of reaction mixtures. In addition, the apparatus may include provisions for independently controlling pressure in each vessel. In situ monitoring of individual reaction mixtures provides feedback for process controllers, and also provides data for determining reaction rates, product yields, and various properties of the reaction products, including viscosity and molecular weight.Type: ApplicationFiled: April 29, 2002Publication date: February 6, 2003Applicant: Symyx Technologies, Inc.Inventors: Damian A. Hajduk, Ralph B. Nielsen, Adam Safir, Leonid Matsiev, Eric McFarland, Paul Mansky
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Patent number: 6494079Abstract: A method and apparatus for measuring properties of a fluid composition in a conduit includes a mechanical resonator connected to a measurement circuit. The measurement circuit provides a variable frequency input signal to the mechanical resonator, causing the mechanical resonator to oscillate. The input signal is then sent to the mechanical resonator and swept over a selected frequency range. The mechanical resonator's response over the frequency range depends on various characteristics of the fluid being tested, such as the temperature, viscosity, and other physical properties.Type: GrantFiled: March 7, 2001Date of Patent: December 17, 2002Assignee: Symyx Technologies, Inc.Inventors: Leonid Matsiev, James Bennett, Eric McFarland
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Publication number: 20020178787Abstract: A method and apparatus for measuring properties of a liquid composition includes a mechanical resonator, such as a thickness shear mode resonator or a tuning fork resonator, connected to a measurement circuit. The measurement circuit provides a variable frequency input signal to the tuning fork, causing the mechanical resonator to oscillate. To test the properties of a liquid composition, the mechanical resonator is placed inside a sample well containing a small amount of the liquid. The input signal is then sent to the mechanical resonator and swept over a selected frequency range, preferably less than 1 MHz to prevent the liquid being tested from exhibiting gel-like characteristics and causing false readings. The mechanical resonator's response over the frequency range depends on various characteristics of the liquid being tested, such as the temperature, viscosity, and other physical properties.Type: ApplicationFiled: July 23, 2002Publication date: December 5, 2002Applicant: Symyx Technologies, Inc.Inventors: Leonid Matsiev, James Bennett, Eric McFarland
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Publication number: 20020155036Abstract: An apparatus and method for carrying out and monitoring the progress and properties of multiple reactions is disclosed. The method and apparatus are especially useful for synthesizing, screening, and characterizing combinatorial libraries, but also offer significant advantages over conventional experimental reactors as well. The apparatus generally includes multiple vessels for containing reaction mixtures, and systems for controlling the stirring rate and temperature of individual reaction mixtures or groups of reaction mixtures. In addition, the apparatus may include provisions for independently controlling pressure in each vessel. In situ monitoring of individual reaction mixtures provides feedback for process controllers, and also provides data for determining reaction rates, product yields, and various properties of the reaction products, including viscosity and molecular weight.Type: ApplicationFiled: April 29, 2002Publication date: October 24, 2002Applicant: Symyx Technologies, Inc.Inventors: Damian A. Hajduk, Ralph B. Nielsen, Adam Safir, Leonid Matsiev, Eric McFarland, Paul Mansky
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Patent number: 6468806Abstract: Methods and apparatus are provided for the preparation of a substrate having an array of diverse materials, the materials being deposited at spatially addressable, predefined regions. In particular, potential masking systems are provided which generate spatially and temporally varying electric, magnetic and chemical potentials across a substrate. These varying potentials are used to deposit components of source materials onto a substrate in a combinatorial fashion, thus creating arrays of materials that differ slightly in chemical composition, concentration, stoichiometry, and/or thickness. The diverse materials may be organized in discrete arrays, or they may vary continuously over the surface of the substrate. The shape of the potential allows the determination of the composition of the resulting materials at all locations on the substrate.Type: GrantFiled: September 30, 1997Date of Patent: October 22, 2002Assignee: Symyx Technologies, Inc.Inventors: Eric McFarland, Earl Danielson, Martin Devenney, Christopher J. Warren
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Patent number: 6455316Abstract: Devices and methods for controlling and monitoring the progress and properties of multiple reactions are disclosed. The method and apparatus are especially useful for synthesizing, screening, and characterizing combinatorial libraries, but also offer significant advantages over conventional experimental reactors as well. The apparatus generally includes multiple vessels for containing reaction mixtures, and systems for controlling the stirring rate and temperature of individual reaction mixtures or groups of reaction mixtures. In addition, the apparatus may include provisions for independently controlling pressure in each vessel, and a system for injecting liquids into the vessels at a pressure different than ambient pressure. In situ monitoring of individual reaction mixtures provides feedback for process controllers, and also provides data for determining reaction rates, product yields, and various properties of the reaction products, including viscosity and molecular weight.Type: GrantFiled: April 13, 2000Date of Patent: September 24, 2002Assignee: Symyx Technologies, Inc.Inventors: Howard Turner, G. Cameron Dales, Lynn VanErden, Johannes A. M. VanBeek, Damian A. Hajduk, Ralph B. Nielsen, Paul Mansky, Leonid Matsiev, Pei Wang, Eric McFarland
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Publication number: 20020098471Abstract: The present invention relates, inter alia, to methodologies for the synthesis, screening and characterization of organometallic compounds and catalysts (e.g., homogeneous catalysts). The methods of the present invention provide for the combinatorial synthesis, screening and characterization of libraries of supported and unsupported organometallic compounds and catalysts (e.g., homogeneous catalysts). The methods of the present invention can be applied to the preparation and screening of large numbers of organometallic compounds which can be used not only as catalysts (e.g., homogeneous catalysts), but also as additives and therapeutic agents.Type: ApplicationFiled: January 21, 1999Publication date: July 25, 2002Inventors: W. HENRY WEINBERG, ERIC MCFARLAND, ISY GOLDWASSER, THOMAS BOUSSIE, HOWARD TURNER, JOHANNES A.M. VAN BEEK, VINCE MURPHY, TIMOTHY POWERS
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Patent number: 6393895Abstract: A method and apparatus for measuring properties of a liquid composition includes a mechanical resonator, such as a thickness shear mode resonator or a tuning fork resonator, connected to a measurement circuit. The measurement circuit provides a variable frequency input signal to the tuning fork, causing the mechanical resonator to oscillate. To test the properties of a liquid composition, the mechanical resonator is placed inside a sample well containing a small amount of the liquid. The input signal is then sent to the mechanical resonator and swept over a selected frequency range, preferably less than 1 MHz to prevent the liquid being tested from exhibiting gel-like characteristics and causing false readings. The mechanical resonator's response over the frequency range depends on various characteristics of the liquid being tested, such as the temperature, viscosity, and other physical properties.Type: GrantFiled: August 12, 1998Date of Patent: May 28, 2002Assignee: Symyx Technologies, Inc.Inventors: Leonid Matsiev, James Bennett, Eric McFarland
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Patent number: 6336353Abstract: A method and apparatus for measuring properties of a fluid composition includes a mechanical resonator connected to a measurement circuit. The measurement circuit provides a variable frequency input signal to the mechanical resonator, causing the mechanical resonator to oscillate. To test the properties of a liquid composition, the mechanical resonator is placed inside a sample well containing a small amount of the fluid. The input signal is then sent to the mechanical resonator and swept over a selected frequency range. The mechanical resonator's response over the frequency range depends on various characteristics of the fluid being tested, such as the temperature, viscosity, and other physical properties. The invention is particularly suitable for combinatorial chemistry applications, which require rapid analysis of chemical properties for screening.Type: GrantFiled: March 7, 2001Date of Patent: January 8, 2002Assignee: Symyx Technologies, Inc.Inventors: Leonid Matsiev, James Bennett, Eric McFarland
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Publication number: 20010010174Abstract: A method and apparatus for measuring properties of a liquid composition includes a mechanical resonator, such as a thickness shear mode resonator or a tuning fork resonator, connected to a measurement circuit. The measurement circuit provides a variable frequency input signal to the tuning fork, causing the mechanical resonator to oscillate. To test the properties of a liquid composition, the mechanical resonator is placed inside a sample well containing a small amount of the liquid. The input signal is then sent to the mechanical resonator and swept over a selected frequency range, preferably less than 1 MHz to prevent the liquid being tested from exhibiting gel-like characteristics and causing false readings. The mechanical resonator's response over the frequency range depends on various characteristics of the liquid being tested, such as the temperature, viscosity, and other physical properties.Type: ApplicationFiled: March 7, 2001Publication date: August 2, 2001Inventors: Leonid Matsiev, James Bennett, Eric McFarland
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Patent number: 6248540Abstract: The present invention relates, inter alia, to methodologies for the synthesis, screening and characterization of organometailic compounds and catalysts (e.g., homogeneous catalysts). The methods of the present invention provide for the combinatorial synthesis, screening and characterization of libraries of supported and unsupported organometallic compounds and catalysts (e.g., homogeneous catalysts). The methods of the present invention can be applied to the preparation and screening of large niumbers of organometallic compounds which can be used not only as catalysts (e.g., homogeneous catalysts), but also as additives and therapeutic agents.Type: GrantFiled: September 3, 1999Date of Patent: June 19, 2001Assignee: Symyx Technologies, Inc.Inventors: W. Henry Weinberg, Eric McFarland, Isy Goldwasser, Thomas Boussie, Howard Turner, Johannes A. M. Van Beek, Vince Murphy, Timothy Powers
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Patent number: 6030917Abstract: The present invention relates, inter alia, to methodologies for the synthesis, screening and characterization of organometallic compounds and catalysts (e.g., homogeneous catalysts). The methods of the present invention provide for the combinatorial synthesis, screening and characterization of libraries of supported and unsupported organometallic compounds and catalysts (e.g., homogeneous catalysts). The methods of the present invention can be applied to the preparation and screening of large numbers of organometallic compounds which can be used not only as catalysts (e.g., homogeneous catalysts), but also as additives and therapeutic agents.Type: GrantFiled: July 22, 1997Date of Patent: February 29, 2000Assignee: Symyx Technologies, Inc.Inventors: W. Henry Weinberg, Eric McFarland, Isy Goldwasser, Thomas Boussie, Howard Turner, Johannes A. M. Van Beek, Vince Murphy, Timothy Powers
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Patent number: 6013199Abstract: This invention relates generally to new luminescent materials. Specifically, this invention relates to the discovery of phosphor materials in the forms of A.sub.2 BX.sub.4, ABX.sub.4-y :M and A.sub.3-z B.sub.5 X.sub.12 :M.sub.z. More specifically, this invention relates to the discovery of phosphor materials having compositions of matter in the forms, Sr.sub.2 CeO.sub.4, (Y.sub.0.82 Al.sub.0.07 La.sub.0.06)VO.sub.4 :Eu.sub.0.05 and (Y.sub.0.5 Gd.sub.0.5).sub.2.97 (Al.sub.0.5 Ga.sub.0.5).sub.5 O.sub.12 :CeO.sub.0.03.Type: GrantFiled: February 5, 1998Date of Patent: January 11, 2000Assignee: Symyx TechnologiesInventors: Eric McFarland, Earl Danielson, Martin Devenney, Casper Reaves, Daniel M. Giaquinta, Damodara M. Poojary, Xin Di Wu, Josh H. Golden