Patents Assigned to E
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Patent number: 6545291Abstract: A transistor having a channel width, W, and a channel length, L, defined by non-rectangular electrodes. The transistor is a thin film field effect transistor having an insulated gate electrode. One of a source and drain electrodes is connected to a display electrode and one is connected to a data line. The source and drain electrodes can be interdigitated to provide a desired W/L ratio. The gate is connected to a select line. An overlap region between a display electrode and a select line for another pixel defines a capacitor. The transistor is fabricated to be situated behind the display electrode so as to maximize an aperture ratio. The design enables the use of conventional printing methods, such as screen printing, ink jet printing, printing through a stencil, flexo-gravure printing and offset printing.Type: GrantFiled: August 30, 2000Date of Patent: April 8, 2003Assignee: E Ink CorporationInventors: Karl R. Amundson, Gregg Duthaler, Paul S. Drzaic
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Patent number: 6544090Abstract: A method for chemically etching of a foam glass layer to provide at least one cavity pattern in the foam glass layer. The method utilizes a substrate with at least one major surface suitable for receiving a glass layer. At least one layer of a glass paste composition in then applied onto the major surface of the substrate. The substrate and glass paste composition are then heated to a temperature sufficient enough to obtain a foam glass layer bonded to the major surface of the substrate. At least a portion of the foam glass layer is chemically etched to obtain at least one cavity pattern in the foam glass layer. The chemical etching of the foam glass layer results in an anisotropic etching rate.Type: GrantFiled: June 16, 2000Date of Patent: April 8, 2003Assignee: E. I. du Pont de Nemours and CompanyInventors: Paul R. Anderson, Charles J. Barnhart, Randall J. Cutcher, Jill M. Wyse
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Patent number: 6545200Abstract: This invention relates to an isolated nucleic acid fragment encoding a sterol biosynthetic enzyme. The invention also relates to the construction of a chimeric gene encoding all or a portion of the sterol biosynthetic enzyme, in sense or antisense orientation, wherein expression of the chimeric gene results in production of altered levels of the sterol biosynthetic enzyme in a transformed host cell.Type: GrantFiled: December 15, 1999Date of Patent: April 8, 2003Assignee: E. I. du Pont de Nemours and CompanyInventors: Rebecca E. Cahoon, Omolayo O. Famodu, Brian McGonigle, J. Antoni Rafalski, Hajime Sakai
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Patent number: 6544593Abstract: The present invention provides for an etch and mar resistant low VOC clear coating composition most suitable for use as a top clear coat in multi-layered OEM or refinish automotive coatings. The coating composition includes isocyanate, carbonate and melamine components. The isocyanate component includes an aliphatic polyisocyanate. The composition may be formulated as a two-pack or one-pack coating composition, wherein the isocyanate functionalities are blocked with a blocker such as a mono-alcohol.Type: GrantFiled: November 6, 2001Date of Patent: April 8, 2003Assignee: E. I. du Pont de Nemours and CompanyInventors: Isao Nagata, Peter William Uhlianuk
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Patent number: 6545068Abstract: A composition is provided which comprises a first component, a second component, and a compressible substance in which the first component comprises a peroxide, a liquid which comprises water, and a solid particulate; and the second component comprises a polymer, a crosslinking agent, and a solid particulate. The composition can further comprises a sugar. Also disclosed is a process that can be used for preventing a grouting composition from becoming limp. The process comprises combining a grouting composition with a compressible substance in which the composition comprises a first component and a second component as disclosed above.Type: GrantFiled: February 9, 2000Date of Patent: April 8, 2003Assignee: E. I. du Pont de Nemours and CompanyInventors: Walter John Simmons, Domenic Joseph Barsotti, Phillip Edwin Gramlich
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Publication number: 20030065254Abstract: An implantable enzyme-based monitoring system suitable for long term in vivo use to measure the concentration of prescribed substances such as glucose is provided. In one embodiment, the implantable enzyme-based monitoring system includes at least one sensor assembly, an outer membrane surrounding the sensor assembly and having a window therein, and a polymeric window cover affixed to the outer membrane and covering the window. Preferably, the outer membrane of the monitoring system is silicone and the window cover is a polymer of 2-hydroxyethyl methacrylate (HEMA), N,N,-dimethylaminoethyl methacrylate (DMAEMA) and methacrylic acid (MA). Also provided herein is an implantable enzyme-based monitoring system having at least one sensor assembly, an outer membrane surrounding the sensor assembly and a coating affixed to the exterior surface of the outer membrane, wherein the coating resists blood coagulation and protein binding to the exterior surface of the outer membrane.Type: ApplicationFiled: October 31, 2002Publication date: April 3, 2003Applicant: Alfred E. Mann Foundation for Scientific ResearchInventors: Joseph H. Schulman, Charles L. Byers, Gerald E. Adomian, Michael S. Colvin
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Patent number: 6540933Abstract: A process for the manufacture of CF3CF═CF2 is disclosed. The process involves contacting 2,3-dichloro-1,1,1,2,3,3-hexafluoropropane with at least 0.1 mole of hydrogen in a reaction vessel of titanium, nickel or iron or their alloys, which is either empty or packed with particles or formed shapes of titanium, nickel or iron or their alloys, at a temperature within the range of from about 350° C. to about 600° C. and for a time sufficient to produce hexafluoropropene. Also disclosed are compositions which comprise hydrogen fluoride in combination with an effective amount of CClF2CClFCF3 to form an azeotrope or azeotrope-like composition with hydrogen fluoride. The compositions contain from about 8.7 to 33.6 mole percent CClF2CClFCF3.Type: GrantFiled: November 27, 2000Date of Patent: April 1, 2003Assignee: E. I. du Pont de Nemours and CompanyInventors: Allen Capron Sievert, V. N. Mallikarjuna Rao
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Patent number: 6541598Abstract: A composition that can be used as catalyst is disclosed. The composition comprises, or is produced by combining, (A) a titanium compound; (B) either (i) a complexing agent, (ii) a combination of a complexing agent, hypophosphorous acid or a salt thereof, and optionally a solvent, a zirconium compound, or both, (iii) combinations thereof; (C) a phosphorus compound; and optionally a solvent. Also disclosed is a process that can be used for producing a polyester. The process comprises contacting, in the presence of an esterification or transesterification or polycondensation catalyst composition and a phosphorus compound, a carbonyl compound and an alcohol under a condition suitable for esterification, transesterification, or polymerization. Further disclosed is a process to make polyester with reduced insoluble particles or solids using a phosphorus compound other than the commonly used phosphoric acid.Type: GrantFiled: July 16, 2002Date of Patent: April 1, 2003Assignee: E. I. du Pont de Nemours and CompanyInventors: Jiwen F. Duan, Donald E. Putzig, Frederick K. Mallon, Timothy M. Davis
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Patent number: 6541545Abstract: An composition is provided which comprises a first component and a second component in which the first component comprises a peroxide, a liquid which comprises water, a sugar, and a solid particulate; and the second component comprises a polymer, a crosslinking agent, and a solid particulate. Also disclosed are processes for reducing fluid loss in a grouting composition and for anchoring a reinforcing member in a hole using the composition disclosed above.Type: GrantFiled: March 19, 1999Date of Patent: April 1, 2003Assignee: E. I. du Pont de Nemours and CompanyInventors: Walter John Simmons, Domenic Joseph Barsotti
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Patent number: 6539732Abstract: A refrigeration system comprises a compressor for increasing a temperature and a pressure of a refrigerant vapor, a condenser fluidly coupled to the compressor for condensing the refrigerant vapor, an expansion device for decreasing the temperature and pressure of a refrigerant liquid, and an evaporator fluidly coupled to the expansion device for evaporating the refrigerant liquid by transferring thermal energy between the refrigerant liquid and a second fluid. The refrigeration system also comprises a heat exchanger having a first flow path fluidly coupled to the compressor and the evaporator and a second flow path fluidly coupled to the condenser and the expansion valve. The heat exchanger is adapted to superheat the refrigerant vapor in the first flow path and subcool the refrigerant liquid in the second flow path by transferring thermal energy between the refrigerant in the first and second flow paths.Type: GrantFiled: February 22, 2001Date of Patent: April 1, 2003Assignee: E-Pak Technology, Inc.Inventor: Brian E. Guckin
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Patent number: 6541585Abstract: Polymers are produced using transition metal complexes that have sites capable of binding a Lewis acid in close proximity to the metal center.Type: GrantFiled: May 31, 2001Date of Patent: April 1, 2003Assignee: E. I. du Pont de Nemours and CompanyInventors: Lynda Kaye Johnson, Alison Margaret Anne Bennett, Kerwin D. Dobbs, Alex Sergey Ionkin, Steven Dale Ittel, Ying Wang, Catherine E. Radzewich, Lin Wang, Elisabeth Hauptman
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Patent number: 6541430Abstract: Fluorinated dialkyl dithiophosphoric acids according to formula (I) and metallic salts thereof: the compounds are useful, for example, as additives for lubricant compositions.Type: GrantFiled: March 24, 2000Date of Patent: April 1, 2003Assignee: E. I. du Pont de Nemours and CompanyInventor: Richard P. Beatty
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Patent number: 6539789Abstract: A device for the contactless detection of a potentially existing essentially edge-free irregularity in a convex surface, which has a structuring that is delimited by edges, comprises a unit for creating a three-dimensional representation of the surface, a unit for extracting the convexity from the three-dimensional representation of the surface and for smoothing the edges of the structuring so as to obtain a convex-free representation of the convex surface which exhibits the irregularity and the structuring, whose edges have now been smoothed, a unit for comparing the convex-free representation with a threshold value so as to identify areal regions of the convex-free representation which are determined by a predetermined relationship to the threshold value, and a unit for analyzing the areas of the identified regions, a region being detected as an irregularity if its area exceeds a predetermined area.Type: GrantFiled: July 16, 2001Date of Patent: April 1, 2003Assignee: Fraunhofer-Gesellschaft zur Foerderung der Angewandten Forschung e. V.Inventors: Guenther Kostka, Peter Schmitt, Ulf Hassler, Randolf Hanke
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Patent number: 6541120Abstract: Aqueous, lead-free cathodically depositable (CDL) coating compositions containing binders and, optionally, crosslinking agents, pigments, and/or additives conventionally employed in lacquers, as well as one or more sulfonic acid salts of the metals vanadium, manganese, iron, zinc, zirconium, silver, tin, lanthanum, cerium and/or bismuth and/or of organometallic compounds in a total amount of from 0.2 to 2 wt. %, calculated as metal and based on the resin solids.Type: GrantFiled: August 22, 2001Date of Patent: April 1, 2003Assignee: E. I. du Pont de Nemours and CompanyInventors: Klausjörg Klein, Walter Kohhirt
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Patent number: 6541078Abstract: The invention is directed to a process for coating substrates by applying at least one coating composition to an optionally precoated substrate and then curing the coating layer(s) thus obtained, wherein at least one of the coating layers is produced from a coating composition which contains a binder system having olefinic double bonds capable of free-radical polymerization and having reactive functional groups within the meaning of addition and/or condensation reactions, the resin solids of the coating composition having a C═C-equivalent weight from 300 to 10,000, preferably from 300 to 8,000, and curing of this (these) coating layer(s) is carried out by irradiation with NIR radiation in the wave length range 760-1500 nm.Type: GrantFiled: May 9, 2001Date of Patent: April 1, 2003Assignee: E. I. du Pont de Nemours and CompanyInventors: Volker Rekowski, Oliver Reis, Martin Wulf
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Publication number: 20030061101Abstract: An electronic advertisement method and system for an Internet browser with a book-like page-based flipping interface. Full pages of electronic advertisements presented on the computer screen are possible without obstructing the viewing and reading of other contents. This benefits both the viewer as well as the advertiser. An advertisement matching/delivery system provides a novel method of inserting advertisements into content as well as a novel method for revenue sharing among the parties involved.Type: ApplicationFiled: October 30, 2002Publication date: March 27, 2003Applicant: E-BOOK SYSTEMS PTE LTDInventors: Chern Hway Seet, Chee Kwan Chow, Eugene Eng Khian Tan, Hong Khoon Wan, Seng Beng Ho
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Patent number: 6538164Abstract: Volatile compounds may be economically recovered from solids present in aqueous solution by subjecting the solution to rapid separation where the volatilization occurs in a flash, spray, or fluid bed, or mechanically agitated dryers. Rapidly separating the solids from the volatile compound greatly simplifies the isolation of the volatile compounds from water. The methods have utility for fermentation processes, solids management, and recycling processes.Type: GrantFiled: September 28, 2000Date of Patent: March 25, 2003Assignee: E. I. du Pont de Nemours and CompanyInventors: F. Glenn Gallagher, George Schurr
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Patent number: 6538083Abstract: This invention concerns a process for the use of hydrogen halides as chain transfer agents in fluoroolefin polymerization.Type: GrantFiled: December 11, 2000Date of Patent: March 25, 2003Assignee: E. I. du Pont de Nemours and CompanyInventors: William B Farnham, Robert C Wheland
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Patent number: 6537786Abstract: Genes have been isolated from a Methylomonas sp encoding elements of the exopolysaccharide biosynthetic pathway. The genes and gene products are the first isolated from an organisms capable of utilizing single carbon (C1) substrates as energy sources. The genes are useful for engineering other C1 utilizing microorganisms to make altered levels of exopolysaccharide which is used in a variety of commercial applications.Type: GrantFiled: August 22, 2001Date of Patent: March 25, 2003Assignee: E. I. du Pont de Nemours and CompanyInventors: Mattheos Koffas, James M. Odom, Siqun Wang, Tao Wang, Rick W. Ye
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Patent number: 6538801Abstract: An electrophoretic display comprises a fluid and a plurality of nanoparticles having diameters substantially less the wavelengths of visible light such that, when the nanoparticles are in a dispersed state and uniformly dispersed throughout the fluid, the fluid presents a first optical characteristic, but when the nanoparticles are in an aggregated state in which they are gathered into aggregates substantially larger than the individual nanoparticles, the fluid presents a second optical characteristic different from the first optical characteristic. The electrophoretic display further comprises at least one electrode arranged to apply an electric field to the nanoparticle-containing fluid and thereby move the nanoparticles between their dispersed and aggregated states. Various compound particles comprising multiple nanoparticles, alone or in combination with larger objects, and processes for the preparation of such compound particles, are also described.Type: GrantFiled: November 12, 2001Date of Patent: March 25, 2003Assignee: E Ink CorporationInventors: Joseph M. Jacobson, Paul S. Drzaic, Ian D. Morrison, Anthony E. Pullen, Jianna Wang, Robert W. Zehner, Caprice L. Gray, Gregg M. Duthaler, Michael McCreary, Emily J. Pratt