Patents Assigned to E
  • Cleaning compositions and methods of treating equipment
    Patent number: 7507301
    Abstract: Cleaning compositions and methods of use thereof are described. A representative method includes treating equipment, particularly equipment used in the asphalt industry and other industries, such as bituminous, rubber, plastics, polymer, tar, concrete, and cement industries. The methods employ a cleaning composition that includes at least one or more of the following: surfactants, builders, hydrotropes, alkali compounds, processing aids, organic acids, and water conditioners, in any combination.
    Type: Grant
    Filed: May 6, 2005
    Date of Patent: March 24, 2009
    Assignee: Victoria E. Wilson and Matthew P. Wilson Trust
    Inventor: Paul A. Wilson
  • Cable comprising twisted metallic conductors with high electrical performance for use in digital systems
    Patent number: 7507909
    Abstract: A cable having twisted metallic conductors for use in digital systems. Twisted metallic conductor cable with high electrical performance for use in digital systems formed by a bundled array of insulated metallic conductors of thermoplastic material sheathed in a protective banding and by a metallic shielding and finally by a protective cover. The cable uses simultaneously a series of pitches having a maximum and minimum value between 10 and 80 mm and a conductor insulation with a thickness from 2.0 to 2.2 times the conductor diameter for a dielectric constant of 1.87. The combination of the special sequence of pitches and an adequate insulation thickness provides a decrease in attenuation and an improvement concerning the problem of cross talk in digital data transmission.
    Type: Grant
    Filed: March 14, 2003
    Date of Patent: March 24, 2009
    Assignee: Prysmian Telecomunicacoes Cabos E Sistemas Do Brasil S.A.
    Inventors: Renata Cidade Federighi, João Carlos Vieira Da Silva, Marcelo de Araújo Andrade
  • Power tool
    Patent number: 7507925
    Abstract: A power tool is disclosed which comprises a hosing within which a motor is received for driving a tool. At least one switch is received on said housing and can be operated via an elastic touch surface from outside the housing. The switch is part of a signaling circuit which is coupled to a power circuit for activating the motor when said signaling circuit is activated.
    Type: Grant
    Filed: August 12, 2005
    Date of Patent: March 24, 2009
    Assignee: C. & E. Fein GmbH
    Inventors: Boris Rudolf, Sigmund Braun, Christof Kress
  • Enzymatic production of macrocyclic amide oligomers
    Patent number: 7507560
    Abstract: Hydrolytic enzymes capable of catalyzing amidation reactions can be used to produce cyclic amide oligomers from diesters and diamines. The cyclic amide oligomers are useful for the production of higher molecular weight polyamides.
    Type: Grant
    Filed: November 9, 2005
    Date of Patent: March 24, 2009
    Assignee: E. I. du Pont de Nemours and Company
    Inventors: Anna Panova, Robert Dicosimo, Edward G. Brugel, Wilson Tam
  • Nanoparticle complexes having a defined number of ligands
    Patent number: 7507530
    Abstract: A rapid method for the separation of nanoparticles having as few as one ligand attached thereto has been developed. The method relies on the size exclusion separation of a population of nanoparticle-ligand complexes having a narrow uniform size distribution. Ligands are typically biopolymers, functionalized to bind to other nanoparticles for the construction of geometric nanostructures.
    Type: Grant
    Filed: July 30, 2003
    Date of Patent: March 24, 2009
    Assignee: E. I. du Pont de Nemours and Company
    Inventors: Xueying Huang, Zheng Ming
  • Photoresists comprising polymers derived from fluoroalcohol-substituted polycyclic monomers
    Patent number: 7507522
    Abstract: The present invention relates to novel unsaturated polycyclic compounds containing two fluoroalcohol substitutents. This invention also relates to homopolymers and copolymers derived from such unsaturated polycyclic compounds. The copolymers are useful for photoimaging compositions and, in particular, photoresist compositions (positive-working and/or negative-working) for imaging in the production of semiconductor devices. The polymers are especially useful in photoresist compositions having high UV transparency (particularly at short wavelengths, e.g., 157 nm) which are useful as base resins in resists and potentially in many other applications.
    Type: Grant
    Filed: May 17, 2005
    Date of Patent: March 24, 2009
    Assignee: E. I. DuPont de Nemours and Company
    Inventors: Michael Karl Crawford, Hoang Vi Tran, Frank Leonard Schadt, III, Fredrick Claus Zumsteg, Jr., Andrew Edward Feiring, Michael Fryd
  • Decolorization of oligomers
    Patent number: 7507786
    Abstract: Methods of producing decolorized homo- and co-polymers through polymerization of monomers in presence of cobalt-complexed tetraphenyl porphyrin derivatives and decolorization of the produced polymer by exposing the polymer to a sorbent and, optionally, a solvent are disclosed herein.
    Type: Grant
    Filed: November 9, 2006
    Date of Patent: March 24, 2009
    Assignee: E. I. du Pont de Nemours and Company
    Inventors: Bradford B. Wayland, Zhi Lu, Alexei A. Gridnev, Thomas Robert Darling
  • Glass Laminate Containing Ionomer
    Publication number: 20090071604
    Abstract: A non-autoclave process for producing a glass laminate comprises applying a sub-assembly including a rigid layer and an ionomer interlayer in a vacuum bag or vacuum press under vacuum followed by heating, cooling, and releasing vacuum.
    Type: Application
    Filed: September 17, 2007
    Publication date: March 19, 2009
    Applicant: E. I. DU PONT DE NEMOURS AND COMPANY
    Inventor: LUC MOEYERSONS
  • Glass Laminate Containing Poly Vinyl Acetal
    Publication number: 20090071589
    Abstract: A process comprises constructing a sub-assembly including a rigid layer and a poly (vinyl acetal) interlayer in a vacuum bag or vacuum press; applying vacuum to the vacuum bag or vacuum press for a maximum of 30 to 60 minutes while maintaining the sub-assembly at a temperature between 10° C. and 22° C. to produce a cooled sub-assembly; increasing the temperature of the cooled sub-assembly to at least 100° C. or 125° C. over a minimum of 10 minutes or 20 minutes to produce a heated sub-assembly; maintaining the heated sub-assembly at minimum of 100° C. or 125° C. for a minimum of 10 minutes or 20 minutes to form a laminate; cooling the laminate at a rate of at least 0.5° C./minute until the laminate reaches a temperature below 40° C.; contemporaneously with the cooling, removing the vacuum from the vacuum bag, containing the laminate, and allowing the laminate to reach atmospheric pressure.
    Type: Application
    Filed: September 17, 2007
    Publication date: March 19, 2009
    Applicant: E. I. DU PONT DE NEMOURS AND COMPANY
    Inventor: Luc A. Moeyersons
  • PREPARATION OF SILVER SPHERES BY THE REDUCTION OF SILVER POLYAMINE COMPLEXES
    Publication number: 20090071292
    Abstract: Dispersed uniform spherical silver particles were prepared in the absence of a protective colloid by rapidly mixing concentrated iso-ascorbic acid and silver-polyamine complex solutions.
    Type: Application
    Filed: September 19, 2008
    Publication date: March 19, 2009
    Applicant: E. I. du Pont de Nemours and Company
    Inventors: DANIEL V. GOIA, Ionel Halaciuga
  • Photosensitive element having reinforcing particles and method for preparing a printing form from the element
    Publication number: 20090075199
    Abstract: The invention provides a photosensitive element and a method for preparing a printing form from the element. The photosensitive element includes a layer of a photosensitive composition containing a binder, a monomer, and a Norrish type II photoinitiator, wherein the photosensitive layer has a transmittance to actinic radiation of less than 20% and contains reinforcing particles of graphene and/or carbon nanotubes.
    Type: Application
    Filed: September 4, 2008
    Publication date: March 19, 2009
    Applicant: E. I. du Pont de Nemours and Company
    Inventor: Adrian Lungu
  • CABLE SEAL LOCK
    Publication number: 20090071211
    Abstract: A cable seal lock assembly including a housing having a top end and a bottom end with at least two openings in each end. A generally cylindrical-shaped cable sleeve is located in the housing and has a bore therethrough, and ends of the bore are aligned with respective openings in the top and bottom ends of the housing. A clip sleeve is located at least partially within the housing and has a bore of non-uniform diameter extending therethrough, and one end of the clip sleeve extends through one of the openings in the top end of the housing, with the bore at the other end of the clip sleeve aligned with one of the openings at the bottom end of the housing. A locking clip is located in the clip sleeve, and a backing plate is located in the housing with holes that are aligned with the openings at one end of the housing.
    Type: Application
    Filed: September 14, 2007
    Publication date: March 19, 2009
    Applicant: E. J. Brooks Company
    Inventors: Robert E. Stone, Patrick A. Kumfer, David A. Franks, Jeffrey E. Warner
  • Unitized membrane electrode assembly and process for its preparation
    Patent number: 7504174
    Abstract: The invention provides a unitized membrane electrode assembly having a first gas diffusion backing having sealing edges; a polymer membrane; a second gas diffusion backing having sealing edges; a first electrocatalyst coating composition present at the interface of the first gas diffusion backing and the polymer membrane; a second electrocatalyst coating composition present at the interface of the second gas diffusion backing and the polymer membrane; and a thermoplastic polymer, fluid impermeable, seal, wherein the thermoplastic polymer is impregnated into the sealing edges of the first and second gas diffusion backings, and the seal envelops a peripheral region of both the first and second gas diffusion backings and the polymer membrane.
    Type: Grant
    Filed: January 22, 2003
    Date of Patent: March 17, 2009
    Assignee: E. I. du Pont de Nemours & Company
    Inventor: James Gerard Lertola
  • USB flash disk with cover
    Patent number: 7503780
    Abstract: A USB flash disk with an upper cover mainly formed at least on one side of a housing thereof a cut, an outer housing is slipped over the aforesaid housing and covers the cut with one lateral side of it, the lateral side has therein in corresponding with that of the cut at least an elastic sheet at a position, a bottom end of the elastic sheet is fixed on the lateral side, while an upper end of the elastic sheet has a protruding hook protruding out of the top edge of the lateral side, and the elastic sheet has a pressing portion protruding out of the outer surface of the lateral side; the upper cover is put on the upper side of the housing, and has an engaging hole on its side in opposition to the cut to be hooked by the protruding hook when the pressing portion is not pressed, and is released from hooking when the pressing portion is pressed to allow separation of the upper cover from the USB flash disk.
    Type: Grant
    Filed: January 24, 2008
    Date of Patent: March 17, 2009
    Assignee: HO E Screw & Hardware Co., Ltd.
    Inventor: Joseph Huang
  • Method and apparatus for thermal development with development medium remover
    Patent number: 7503258
    Abstract: This invention relates to a method and apparatus for thermally developing a photosensitive element. The thermal development method includes heating the photosensitive element to a temperature sufficient to cause a portion of a composition layer in the element to liquefy, soften, or melt, contacting the heated photosensitive element with a development medium to absorb the liquefied portion at a contact location, and removing the development medium from the photosensitive element with a remover at a location away from the contact location.
    Type: Grant
    Filed: July 28, 2005
    Date of Patent: March 17, 2009
    Assignee: E. I. Du Pont de Nemours & Company
    Inventors: Robert A. McMillen, Dietmar Dudek, Mark A. Hackler, Anandkumar R. Kannurpatti, John W. Trainor, Jr.
  • Packaging having an array of embedded capacitors for power delivery and decoupling in the mid-frequency range and methods of forming thereof
    Patent number: 7504706
    Abstract: One embodiment of the present invention provides a device for providing a low noise power supply package to an IC in the mid-frequency range of 1 MHz to 3 GHz including installing in said package an array of embedded discrete ceramic capacitors, and optionally planar capacitor layers. A further embodiment provides a device for providing a low noise power supply package to an IC in the mid-frequency range of 1 MHz to 3 GHz including an array of embedded discrete ceramic capacitors with different resonance frequencies, arranged in such a way that the capacitor array's impedance vs frequency curve in the critical mid-frequency range yields impedance values at or below a targeted impedance value.
    Type: Grant
    Filed: August 31, 2006
    Date of Patent: March 17, 2009
    Assignee: E. I. Du Pont De Nemours
    Inventors: Madhavan Swaminathan, Ege Engin, Lixi Wan, Prathap Muthana
  • Poly(trimethylene therephthalate) continuous manufacturing process
    Patent number: 7504474
    Abstract: This invention relates to a continuous process for production of poly(trimethylene terephthalate), wherein gaseous 1,3-propanediol by product resulting from the process is condensed in a condenser, and a portion of the condensed by-product is recycled to the condenser while anther portion is recycled back into the process.
    Type: Grant
    Filed: December 14, 2006
    Date of Patent: March 17, 2009
    Assignee: E. I. du Pont de Nemours and Company
    Inventors: John Harvey Eng, Emily A. Blum, Daniel Albert Green, Gene Parrish, Robert E. Trotter, Gary J. Wilson
  • Method to increase carotenoid production in a microbial host cell by down-regulating glycogen synthase
    Patent number: 7504236
    Abstract: A method to increase carotenoid production in carotenogenic microbial host cells is provided by down-regulating or disrupting glycogen synthesis. Disruption of glycogen synthase activity in a carotenogenic microbial host cell significantly increased carotenoid production. Carotenogenic microorganisms are also provided that have been optimized for the production of carotenoid compounds through the down-regulation and/or disruption of glycogen synthase activity.
    Type: Grant
    Filed: April 2, 2007
    Date of Patent: March 17, 2009
    Assignee: E. I. du Pont de Nemours and Company
    Inventors: Edward S. Miller, Jr., James M. Odom, Pamela L. Sharpe
  • Dust-collectable mobile robotic vacuum cleaner
    Patent number: 7503096
    Abstract: A dust-collectable mobile robotic vacuum cleaner includes a base frame, a driving device mounted to the base frame, a control device mounted to the base frame and electrically connected with the driving device, a collision-detectable unit mounted to the base frame electrically connected with the control device, and a dust-collecting device mounted to the base frame. The dust-collecting device has dust-collecting box, a dust guider, a round brush, and a dust entrance formed at one side of the dust-collecting box. The dust guider is located at a lower edge of the dust entrance, having two opposite sides pivotably mounted to the dust-collecting box and lying against the ground at a predetermined angle respectively, for upward and downward pivoting movement. The round brush is rotatably located at a front end of the dust guider for sweeping dust particles.
    Type: Grant
    Filed: July 14, 2006
    Date of Patent: March 17, 2009
    Assignee: E-Supply International Co., Ltd.
    Inventor: Wen-Hsu Lin
  • Multilayer structures as stable hole-injecting electrodes for use in high efficiency organic electronic devices
    Patent number: 7504655
    Abstract: Multilayer anode structures (104) for electronic devices (100) such as polymer light-emitting diodes are described. The multilayer anodes include a high conductivity organic layer (114) adjacent to the photoactive layer (102) and a low conductivity organic layer (112) between the high conductivity organic layer and the anode's electrical connection layer (110). This anode structure provides polymer light emitting diodes which exhibit high brightness, high efficiency and long operating lifetime. The multilayer anode structure of this invention provides sufficiently high resistivity to avoid cross-talk in passively addressed pixellated polymer emissive displays; the multilayer anode structure of this invention simultaneously provides long lifetime for pixellated polymer emissive displays.
    Type: Grant
    Filed: April 28, 2005
    Date of Patent: March 17, 2009
    Assignee: E. I. Du Pont De Nemours & Company
    Inventors: Ian D. Parker, Chi Zhang