Patents by Inventor William R. Even
William R. Even 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).
-
Patent number: 7488407Abstract: A polymer material useful as the porous dielectric medium for microfluidic devices generally and electrokinetic pumps in particular. The polymer material is produced from an inverse (water-in-oil) emulsion that creates a 3-dimensional network characterized by small pores and high internal volume, characteristics that are particularly desirable for the dielectric medium for electrokinetic pumps. Further, the material can be cast-to-shape inside a microchannel. The use of bifunctional monomers provides for charge density within the polymer structure sufficient to support electroosmotic flow. The 3-dimensional polymeric material can also be covalently bound to the channel walls thereby making it suitable for high-pressure applications.Type: GrantFiled: October 19, 2004Date of Patent: February 10, 2009Assignee: Sandia CorporationInventors: Timothy J. Shepodd, Leroy Whinnery, Jr., William R. Even, Jr.
-
Patent number: 6869015Abstract: A novel tamper-indicating barcode methodology is disclosed that allows for detection of alteration to the barcode. The tamper-indicating methodology makes use of a tamper-indicating means that may be comprised of a particulate indicator, an optical indicator, a deformable substrate, and/or may be an integrated aspect of the barcode itself. This tamper-indicating information provides greater security for the contents of containers sealed with the tamper-indicating barcodes.Type: GrantFiled: October 4, 2002Date of Patent: March 22, 2005Assignee: Sandia National LaboratoriesInventors: Eric B. Cummings, William R. Even, Jr., Blake A. Simmons, Paul Michael Dentinger
-
Patent number: 6846399Abstract: A polymer material useful as the porous dielectric medium for microfluidic devices generally and electrokinetic pumps in particular. The polymer material is produced from an inverse (water-in-oil) emulsion that creates a 3-dimensional network characterized by small pores and high internal volume, characteristics that are particularly desirable for the dielectric medium for electrokinetic pumps. Further, the material can be cast-to-shape inside a microchannel. The use of bifunctional monomers provides for charge density within the polymer structure sufficient to support electroosmotic flow. The 3-dimensional polymeric material can also be covalently bound to the channel walls thereby making it suitable for high-pressure applications.Type: GrantFiled: February 28, 2001Date of Patent: January 25, 2005Assignee: Sandia National LaboratoriesInventors: Timothy J. Shepodd, Leroy Whinnery, Jr., William R. Even, Jr.
-
Patent number: 6814289Abstract: A novel spread spectrum barcode methodology is disclosed that allows a barcode to be read in its entirety even when a significant fraction or majority of the barcode is obscured. The barcode methodology makes use of registration or clocking information that is distributed along with the encoded user data across the barcode image. This registration information allows for the barcode image to be corrected for imaging distortion such as zoom, rotation, tilt, curvature, and perspective.Type: GrantFiled: May 30, 2001Date of Patent: November 9, 2004Assignee: Sandia CorporationInventors: Eric B. Cummings, William R. Even, Jr.
-
Publication number: 20030098357Abstract: A novel tamper-indicating barcode methodology is disclosed that allows for detection of alteration to the barcode. The tamper-indicating methodology makes use of a tamper-indicating means that may be comprised of a particulate indicator, an optical indicator, a deformable substrate, and/or may be an integrated aspect of the barcode itself. This tamper-indicating information provides greater security for the contents of containers sealed with the tamper-indicating barcodes.Type: ApplicationFiled: October 4, 2002Publication date: May 29, 2003Inventors: Eric B. Cummings, William R. Even, Blake A. Simmons, Paul Michael Dentinger
-
Publication number: 20020179717Abstract: A novel spread spectrum barcode methodology is disclosed that allows a barcode to be read in its entirety even when a significant fraction or majority of the barcode is obscured. The barcode methodology makes use of registration or clocking information that is distributed along with the encoded user data across the barcode image. This registration information allows for the barcode image to be corrected for imaging distortion such as zoom, rotation, tilt, curvature, and perspective.Type: ApplicationFiled: May 30, 2001Publication date: December 5, 2002Inventors: Eric B. Cummings, William R. Even
-
Publication number: 20020137628Abstract: A method for producing fine, essentially contamination free, noble metal alloys is disclosed. The alloys comprise particles in a size range of 5 to 500 nm. The method comprises 1. A method for preparing a noble metal alloy at low temperature, the method comprising the steps of forming solution of organometallic compounds by dissolving the compounds into a quantity of a compatible solvent medium capable of solvating the organometallic, mixing a portion of each solution to provide a desired molarity ratio of ions in the mixed solution, rapidly quenching droplets of the mixed solution to initiate a solute-solvent phase separation as the solvent freezes, removing said liquid cryogen, collecting and freezing drying the frozen droplets to produce a dry powder, and finally reducing the powder to a metal by flowing dry hydrogen over the powder while warming the powder to a temperature of about 150° C.Type: ApplicationFiled: December 14, 2001Publication date: September 26, 2002Inventor: William R. Even
-
Publication number: 20020132866Abstract: A method and composition for removing perchlorate from a highly selective ion exchange resin is disclosed. The disclosed approach comprises treating the resin in a solution of super critical or liquid carbon dioxide and one or more quaternary ammonium chloride surfactant compounds.Type: ApplicationFiled: January 14, 2002Publication date: September 19, 2002Inventors: William R. Even, Jennifer A. Irvin, Edward E. Tarver, Gilbert M. Brown, James C. F. Wang
-
Patent number: 6407143Abstract: A method and composition for removing perchlorate from a highly selective ion exchange resin is disclosed. The disclosed approach comprises treating the resin in a solution of super critical or liquid carbon dioxide and one or more quaternary ammonium chloride surfactant compounds.Type: GrantFiled: December 22, 1999Date of Patent: June 18, 2002Assignee: Sandia CorporationInventors: William R. Even, David J. Irvin, Jennifer A. Irvin, Edward E. Tarver, Gilbert M. Brown, James C. F. Wang
-
Patent number: 6348431Abstract: A method for producing fine, essentially contamination free, noble metal alloys is disclosed. The alloys comprise particles in a size range of 5 to 500 nm. The method comprises 1. A method for preparing a noble metal alloy at low temperature, the method comprising the steps of forming solution of organometallic compounds by dissolving the compounds into a quantity of a compatible solvent medium capable of solvating the organometallic, mixing a portion of each solution to provide a desired molarity ratio of ions in the mixed solution, adding a support material, rapidly quenching droplets of the mixed solution to initiate a solute-solvent phase separation as the solvent freezes, removing said liquid cryogen, collecting and freezing drying the frozen droplets to produce a dry powder, and finally reducing the powder to a metal by flowing dry hydrogen over the powder while warming the powder to a temperature of about 150° C.Type: GrantFiled: April 19, 1999Date of Patent: February 19, 2002Assignee: Sandia National LaboratoriesInventor: William R. Even, Jr.
-
Publication number: 20010008212Abstract: A polymer material useful as the porous dielectric medium for microfluidic devices generally and electrokinetic pumps in particular. The polymer material is produced from an inverse (water-in-oil) emulsion that creates a 3-dimensional network characterized by small pores and high internal volume, characteristics that are particularly desirable for the dielectric medium for electrokinetic pumps. Further, the material can be cast-to-shape inside a microchannel. The use of bifunctional monomers provides for charge density within the polymer structure sufficient to support electroosmotic flow. The 3-dimensional polymeric material can also be covalently bound to the channel walls thereby making it suitable for high-pressure applications.Type: ApplicationFiled: February 28, 2001Publication date: July 19, 2001Inventors: Timothy J. Shepodd, Leroy Whinnery, William R. Even
-
Patent number: 6207124Abstract: Disordered carbons were synthesized at 700° C. from methacrylonitrile-divinylbenzene precursors. The disorder, even at the free surface, was confirmed with TEM. These powdered carbons were subjected to rapid surface heating by a pulsed infrared laser (59 MW pulses). While the bulk structure remained essentially unchanged, there was substantial “surface reconstruction” to a depth of 0.25 &mgr;m presumably due to ablation, re-deposition, and “recrystallization” of the surface carbon after heating by the laser. The surface ordering appears similar to the bulk microstructure of carbons isothermally annealed at 2,200° C. (i.e., turbostatic). Improvements were observed in first cycle irreversible loss, rate capability, and coulombic efficiencies of the “reconstructed” carbons, relative to the untreated carbon.Type: GrantFiled: January 28, 1999Date of Patent: March 27, 2001Inventors: William R. Even, Jr., Ronald A. Guidotti
-
Patent number: 6110397Abstract: A novel method for preparing a hydrogenation composition comprising organic polymer molecules having carbon--carbon double bonds, for removing hydrogen from the atmosphere within enclosed spaces and particularly from atmospheres within enclosed spaces that contain air, water vapor, oxygen, carbon dioxide or ammonia. The organic polymers molecules containing carbon--carbon double bonds throughout their structures, preferably polybutadiene, polyisoprene and derivatives thereof, intimately mixed with an insoluble noble metal catalyst composition. High molecular weight polymers may be added to the organic polymer/catalyst mixture in order to improve their high temperature performance. The hydrogenation composition is prepared by dispersing the polymers in a suitable solvent, forming thereby a solution suspension, flash-freezing droplets of the solution in a liquid cryogen, freeze-drying the frozen droplets to remove frozen solvent incorporated in the droplets, and recovering the dried powder thus formed.Type: GrantFiled: April 19, 1999Date of Patent: August 29, 2000Inventors: Timothy J. Shepodd, William R. Even, Jr.
-
Patent number: 5866623Abstract: The present invention pertains generally to immobilizing particulate matter contained in a "packed" bed reactor so as to prevent powder migration, compaction, coalescence, or the like. More specifically, this invention relates to a technique for immobilizing particulate materials using a microporous foam-like polymer such that a) the particulate retains its essential chemical nature, b) the local movement of the particulate particles is not unduly restricted, c) bulk powder migration and is prevented, d) physical and chemical access to the particulate is unchanged over time, and e) very high particulate densities are achieved. The immobilized bed of the present invention comprises a vessel for holding particulate matter, inlet and an outlet ports or fittings, a loosely packed bed of particulate material contained within the vessel, and a three dimensional porous matrix for surrounding and confining the particles thereby fixing the movement of individual particle to a limited local position.Type: GrantFiled: March 3, 1998Date of Patent: February 2, 1999Assignee: Sandia CorporationInventors: William R. Even, Jr., Stephen E. Guthrie, Thomas N. Raber, Karl Wally, LeRoy L. Whinnery, Thomas Zifer
-
Patent number: 5426006Abstract: A secondary battery having a rechargeable lithium-containing anode, a cathode and a separator positioned between the cathode and anode with an organic electrolyte solution absorbed therein is provided. The anode comprises three-dimensional microporous carbon structures synthesized from polymeric high internal phase emulsions or materials derived from this emulsion source, i.e., granules, powders, etc.Type: GrantFiled: April 16, 1993Date of Patent: June 20, 1995Assignee: Sandia CorporationInventors: Frank M. Delnick, William R. Even, Jr., Alan P. Sylwester, James C. F. Wang, Thomas Zifer