Patents Assigned to E
  • Honeycomb structure
    Patent number: 6592963
    Abstract: The present invention relates to honeycomb structures having cell walls of increased thickness wherein multiple layers of cell wall material are not bonded together except on two opposite cell wall sides. The invention also includes a process for making such honeycomb structures.
    Type: Grant
    Filed: June 16, 2000
    Date of Patent: July 15, 2003
    Assignee: E. I. du Pont de Nemours and Company
    Inventor: Mikhail R. Levit
  • Photoresists, polymers and processes for microlithography
    Patent number: 6593058
    Abstract: Photoresists and associated processes for microlithography in the extreme, far, and near UV are disclosed. The photoresists in some embodiments comprise (a) a fluorine-containing copolymer comprising a repeat unit derived from at least one ethylenically unsaturated compound characterized in that at least one ethylenically unsaturated compound is polycyclic and at least one ethylenically unsaturated compound contains at least one fluorine atom covalently attached to an ethylenically unsaturated carbon atom; and (b) at least one photoactive component.
    Type: Grant
    Filed: March 23, 2001
    Date of Patent: July 15, 2003
    Assignee: E. I. du Pont de Nemours and Company
    Inventors: Andrew Edward Feiring, Jerald Feldman
  • Wholly aromatic synthetic fiber produced by liquid-crystal spinning, process for producing the same, and use thereof
    Patent number: 6592987
    Abstract: Wholly aromatic synthetic fibers spun from liquid-crystalline polymer solutions, having a crystal size (110 plane) of not greater than 50 Å and an ionic substance content of no more than 1.0 wt % are disclosed. Said fibers having a low ionic substance content while retaining the inherent high heat resistance and high Young's modulus, and are useful particularly for electrical and electronic parts.
    Type: Grant
    Filed: March 7, 2000
    Date of Patent: July 15, 2003
    Assignee: E. I. du Pont de Namours and Company
    Inventors: Shiro Sakamoto, Hiroyuki Suzuki
  • Method for the production of calendic acid, a fatty acid containing delta-8,10,12 conjugated double bonds and related fatty acids having a modification at the delta-9 position
    Patent number: 6593514
    Abstract: The preparation and use of nucleic acid fragments encoding plant fatty acid modifying enzymes associated with modification of the delta-9 position of fatty acids, in particular, formation of conjugated double bonds are disclosed. Chimeric genes incorporating such nucleic acid fragments and suitable regulatory sequences can be used to create transgenic plants having altered lipid profiles. The preparation and use of nucleic acid fragments encoding plant fatty acid modifying enzymes associated with formation of a trans delta-12 double bond also are disclosed. Chimeric genes incorporating such nucleic acid fragments and suitable regulatory sequences can be used to create transgenic plants having altered lipid profiles.
    Type: Grant
    Filed: August 15, 2000
    Date of Patent: July 15, 2003
    Assignee: E. I. du Pont de Nemours and Company
    Inventors: Edgar Benjamin Cahoon, William Dean Hitz, Kevin G. Ripp
  • Flow metering device for landfill gas extraction well
    Patent number: 6591695
    Abstract: A coupling having an integral orifice plate engages upstream and downstream segments of a landfill piping system. Upstream and downstream ports are respectively formed through the walls of the coupling adjacent the orifice plate. The difference in pressure at the ports is correlated to a flow rate through the pipe. Sensor fittings are threadably engaged with the ports, and to support the threadable engagement, the wall of the coupling through which the ports are formed has a thickness of at least around one-half inch.
    Type: Grant
    Filed: July 28, 1999
    Date of Patent: July 15, 2003
    Assignee: EFG & E International
    Inventors: Ronald L. Brookshire, Travis Brookshire
  • Scorpion toxins
    Patent number: 6593141
    Abstract: This invention relates to an isolated nucleic acid fragment encoding scorpion toxins that are K-channel modifiers. The invention also relates to the construction of a chimeric gene encoding all or a substantial portion of the K-channel modifier, in sense or antisense orientation, wherein expression of the chimeric gene results in production of altered levels of the K-channel modifier in a transformed host cell.
    Type: Grant
    Filed: June 1, 2001
    Date of Patent: July 15, 2003
    Assignee: E. I. du Pont de Nemours and Company
    Inventors: Rafael Herman, James F. Wong, Albert L. Lu, James K. Presnail, Jian-Ming Lee
  • Optical fiber having low non-linearity for WDM transmission
    Publication number: 20030128948
    Abstract: An optical transmission fiber has a refractive index profile with an area of increased index of refraction at the inner core of the fiber, an annular region positioned radially outward from the inner core with an index of refraction exceeding the index of the inner core, and at least a low dopant content region in a cross-sectional region between the inner core and the annular region. A low loss cladding layer surrounds the core region. The optical transmission fiber with this segmented core profile provides a high effective area, low non-linearity coefficient, nonzero dispersion, and relatively flat dispersion slope.
    Type: Application
    Filed: January 14, 2003
    Publication date: July 10, 2003
    Applicant: PIRELLI CAVI E SISTEMI S.P.A.
    Inventors: Bartolomeo Italo Tirloni, Francesco Gabriele Sartori, Davide Sarchi, Giacomo Stefano Roba
  • Filament having a quadrilobate exterior cross-section and a four-sided void
    Patent number: 6589653
    Abstract: A synthetic polymer filament is characterized by a four-sided void that extends centrally and axially through the filament. Each apex of the void extends toward the approximate midpoint of one side of the exterior configuration of the filament. The four-sided void has a modification ratio in the range from about 1.2 to about 2.0 and occupies from about five percent 5% to about thirty percent 30% of the cross sectional area of the filament. A spinneret plate for producing the thermoplastic synthetic polymer filament has a cluster of four orifices centered about a central point. Each orifice includes a generally isosceles triangle-shaped major portion from which extends a pair of legs, each leg of one orifice being spaced from the leg of an adjacent orifice to define a gap therebetween.
    Type: Grant
    Filed: August 8, 2001
    Date of Patent: July 8, 2003
    Assignee: E. I. du Pont de Nemours and Company
    Inventor: Perry Han-Cheng Lin
  • Planar, fractal, time-delay beamformer
    Patent number: 6590531
    Abstract: An antenna beamformer is disclosed that uses controllable time delay elements distributed in a planar fractal feed network between the input port and multiple output ports. The use of time delay elements, rather than phase shifting elements, allows the beamformer to maintain a constant steering angle independent of frequencies over a broad range of frequencies. In addition, fewer control signals are used to control all of the time delay elements due to distributing the time delay elements throughout the fractal feed network, rather than grouping the delay elements near the output ports.
    Type: Grant
    Filed: May 23, 2001
    Date of Patent: July 8, 2003
    Assignee: E Tenna Corporation
    Inventors: William E. McKinzie, III, James D. Lilly
  • Polytrimethylene ether ester amide and use thereof
    Patent number: 6590065
    Abstract: Polytrimethylene ether ester amide and use thereof.
    Type: Grant
    Filed: February 11, 2002
    Date of Patent: July 8, 2003
    Assignee: E. I. Du Pont de Nemours and Company
    Inventor: Marc B. Goldfinger
  • Multi-resonant, high-impedance electromagnetic surfaces
    Publication number: 20030122729
    Abstract: An artificial magnetic conductor is resonant at multiple resonance frequencies. The artificial magnetic conductor is characterized by an effective media model which includes a first layer and a second layer. Each layer has a layer tensor permittivity and a layer tensor permeability having non-zero elements on the main tensor diagonal only.
    Type: Application
    Filed: December 23, 2002
    Publication date: July 3, 2003
    Applicant: e-tenna Corporation
    Inventors: Rodolfo E. Diaz, William E. McKinzie
  • Fiber coated with water blocking material
    Patent number: 6586094
    Abstract: The present invention relates to a fiber coated with a water blocking material that includes an essentially water free dispersion comprising a superabsorbent polymer and a dispersing medium. The fibers made according to this invention may be used, for example, as fiber reinforcing material used in the manufacture of cables, and in particular in yarns for fiber optical cables that use optical light wave guides for optical communication transmissions.
    Type: Grant
    Filed: November 19, 1999
    Date of Patent: July 1, 2003
    Assignee: E. I. du Pont de Nemours and Company
    Inventors: Serge Rebouillat, Friedrich V. Pfister
  • Decomposition of organic hydroperoxides in the presence of a particulate catalyst containing highly fluorinated polymer having sulfonic acid groups and process for the manufacture of bisphenol A
    Patent number: 6586640
    Abstract: A process for the manufacture of a hydroxy-substituted organic compound comprising decomposing an organic hydroperoxide, preferably a compound of the formula Ar—C(CH3)2O2H, wherein Ar is a substituted or unsubstituted mononuclear or polynuclear aromatic group. The decomposition is carried out in the presence of a catalyst comprising highly fluorinated polymer having sulfonic acid groups with the catalyst being in the form of particles of which at least about 20 weight % have a particle size less than about 300 &mgr;m. Cumene hydroperoxide can be decomposed in the process to phenol and acetone which can be reacted to form bisphenol A in the presence of the same catalyst that was used for the decomposition.
    Type: Grant
    Filed: June 20, 2002
    Date of Patent: July 1, 2003
    Assignee: E. I. du Pont de Nemours and Company
    Inventors: Ralph Birchard Lloyd, Qun Sun, Mark Andrew Harmer, Edward George Howard, Jr.
  • Cardable fiber blend and a moldable fiber batt and the process for making a moldable fiber batt
    Patent number: 6585076
    Abstract: The present invention provides a cardable fiber blend which forms a moldable fiber batt, the blend comprising fibers having a modulus of 550 g/denier or more with fibers of a thermoplastic polymer wherein the high modulus polymer fibers are all uncrimped fibers or a mixture of crimped and uncrimped fibers. The moldable batt is useful in making speaker cones.
    Type: Grant
    Filed: June 28, 2001
    Date of Patent: July 1, 2003
    Assignee: E. I. du Pont de Nemours and Company
    Inventor: Anil Kohli
  • Aminoazole-blocked isocyanate components
    Patent number: 6586552
    Abstract: Aminoazole-blocked isocyanate components can be used as self crosslinking binders in heat-curable compositions.
    Type: Grant
    Filed: April 9, 2001
    Date of Patent: July 1, 2003
    Assignee: E. I. du Pont de Nemours and Company
    Inventors: Carmen Flosbach, Patrick Gloeckner, Michael Herm, Helmut Ritter
  • Sanitary napkin
    Patent number: D476738
    Type: Grant
    Filed: October 11, 2002
    Date of Patent: July 1, 2003
    Assignee: Johnson & Johnson Industria E Comercio, LTDA
    Inventor: Igor Philip Passos Proglhof
  • Sanitary napkin
    Patent number: D476739
    Type: Grant
    Filed: October 11, 2002
    Date of Patent: July 1, 2003
    Assignee: Johnson & Johnson Indsutria E Comercio LTDA
    Inventors: Antonio Carlos Ribeiro de Carvalho, Igor Philip Passos Proglhof
  • Container-lid assembly
    Patent number: D476884
    Type: Grant
    Filed: February 11, 2002
    Date of Patent: July 8, 2003
    Assignee: Globalpack Industria e Comercio LTDA.
    Inventor: Renato Miranda
  • Sanitary napkin
    Patent number: D477077
    Type: Grant
    Filed: October 11, 2002
    Date of Patent: July 8, 2003
    Assignee: Johnson & Johnson Industria E Comercio LTDA
    Inventors: Antonio Carlos Ribeiro de Carvalho, Igor Philip Passos Proglhof
  • Sanitary napkin
    Patent number: D477402
    Type: Grant
    Filed: October 11, 2002
    Date of Patent: July 15, 2003
    Assignee: Johnson & Johnson Industria e Comercio LTDA
    Inventor: Maria Monika Neumann de Camacho