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  • Inventor(s):
    Gaetano Francis D'Alelio
    Patent Number:
    US 3890274 B2
    Description:

    Phthalonitrile-terminated aromatic polyimides and polyimide-phthalocyanines are provided. The phthalonitrile-terminated polyimides are prepared by reacting an anhydride end-capped, aromatic polyimide with at least two moles of a dicyano aromatic monoamine to give a polyimide of the structural formula: ##SPC1## Wherein Ar is a divalent aromatic organic radical, Ar’ is a tetravalent aromatic organic radical, the four carbonyl groups being attached directly to separate carbon atoms and each …

    Date Issued:
    1975-06-17
    Record Visibility:
    Public
    Resource Type
    Patent
  • Inventor(s):
    Steven Ruggiero, Carol Tanner
    Patent Number:
    US 8456635 B2
    Description:

    Example methods and apparatus for obtaining suspended particle information are disclosed. A disclosed example method includes emitting light from a light source, dividing the light source into a first path and a second path, and directing the first path to a first container comprising a plurality of particles in a suspension material. The example method also includes directing the second path to a second container containing a suspension material devoid of particles, retrieving a first transm…

    Date Issued:
    2013-06-04
    Record Visibility:
    Public
    Resource Type
    Patent
  • Inventor(s):
    Gaetano Francis D'Alelio
    Patent Number:
    US 4026904 B2
    Description:

    Aromatic epoxy-terminated aromatic polyimides and processes for their preparation are provided. The epoxidized polyimides are prepared by epoxidizing an olefinically unsaturated aromatic imide of the formula: ##STR1## WHEREIN Ar is a divalent aromatic organic radical, Ar’ is a tetravalent aromatic organic radical, the four carbonyl groups being attached directly to separate carbon atoms and each pair of carbonyl groups being attached to adjacent carbon atoms in the Ar’ radical, R’…

    Date Issued:
    1977-05-31
    Record Visibility:
    Public
    Resource Type
    Patent
  • Inventor(s):
    Marvin J. Miller, Matthew A. Williams
    Patent Number:
    US 5106968 B2
    Description:

    1-Carbapenam-2-one-3-carboxylic acid and 1-carba-3-hydroxy-3-cephem-4-carboxylic acid and esters thereof are provided by a process comprising a rhodium C.sub.2 -C.sub.10 carboxylate catalyzed cyclization of an ester of a 4-(1-alkoxy- or 1-substituted alkoxy)-2-oxo-4-azetidinyl)-.beta.-ketobutyric acid and an ester of a 5-(1-alkoxy- or 1-substituted alkoxy-2-oxo-4-azetidinyl)-.alpha.-diazo-.beta.-ketovaleric acid respectively. The process is carried out in an inert organic solvent at a tempera…

    Date Issued:
    1992-04-21
    Record Visibility:
    Public
    Resource Type
    Patent
  • Inventor(s):
    Marvin J. Miller, Garrett C. Moraski
    Patent Number:
    US 8362268 B2
    Description:

    Embodiments herein provide compounds and methods of making and using such compounds for prevention and treatment of multidrug resistant bacteria. In particular, embodiments are directed to anti-bacterial agents from benzo[d]heterocyclic scaffolds for prevention and treatment of multidrug resistant bacteria.

    Date Issued:
    2013-01-29
    Record Visibility:
    Public
    Resource Type
    Patent
  • 6

    Patent

    Inventor(s):
    Philip C. Trexler
    Patent Number:
    US 3051163 B2
    Description:

    This invention relates to improvements in isolating devices, and more particularly to a device providing an enclosure for use to confine contamination while experiments and tests involving contamination of test specimens are being made, or to exclude contamination from a space within which tests and experiments are conducted. Contamination, as herein mentioned, may be biological or radiological or chemical.

    Date Issued:
    1962-08-28
    Record Visibility:
    Public
    Resource Type
    Patent
  • Inventor(s):
    Philip C. Trexler
    Patent Number:
    US 2786464 B2
    Description:

    This invention relates to improvements in biological apparatus, and more particularly to apparatus of the character illustrated in my Patent No. 2,705,489, dated April 5, 1955.

    Date Issued:
    1957-03-26
    Record Visibility:
    Public
    Resource Type
    Patent
  • Inventor(s):
    Gaetano Francis D'Alelio
    Patent Number:
    US 3562218 B2
    Description:

    The copolymers disclosed herein are of acetylenic acrylates and methacrylates having the formula CH2=C®C)) -Z CECH wherein R represents hydrogen or methyl and Z represents a divalent hydrocarbon radical of at least 2 carbon atoms. Polymerization of the acetylenic acrylates and methacrylates in free radical polymerizations generally result in crosslinked or gelled products since the free radicals will activate polymerization through the acetylenic as well as through the acrylic unsaturation….

    Date Issued:
    1971-02-09
    Record Visibility:
    Public
    Resource Type
    Patent
  • Inventor(s):
    Marvin J. Miller
    Patent Number:
    US 4992544 B2
    Description:

    Monocyclic .beta.-lactam compounds represented by the formula ##STR1## wherein R.sub.1 is H, NH.sub.2, acylamino, C.sub.1 -C.sub.4 alkyl, etc.; R.sub.2 is e.g. C.sub.1 -C.sub.4 alkyl, hydroxyalkyl, aminoalkyl, carboxy, esterified carboxy, esterified carboxyalkyl, or carboxyalkyl; and R.sub.3 is hydrogen, benzyl, substituted benzyl, pivaloyl, –SO.sub.3 M, or –P(C.dbd.O)(OM’)2; are obtained by the cyclization of an O-substituted hydroxamate of a .beta.-substituted alkylcarboxylic acid. Fo…

    Date Issued:
    1991-02-12
    Record Visibility:
    Public
    Resource Type
    Patent
  • Inventor(s):
    Eduardo E. Wolf
    Patent Number:
    US 5688474 B2
    Description:

    A method of microfabricating a matrix of evenly distributed catalytic articles, with the matrix then being used to treat reactants in a stream of gases. The matrix is created by depositing areas of conductive material on a nonconductive base wafer or substrate, and then depositing catalyst particles in electrical communication with the conductive material so that a series of localized electrical fields can be created upon the introduction of a power source. A dielectric material surrounding t…

    Date Issued:
    1997-11-18
    Record Visibility:
    Public
    Resource Type
    Patent
  • Inventor(s):
    Gaetano Francis D'Alelio
    Patent Number:
    US 4060515 B2
    Description:

    Aromatic polyimides with nitrile end groups are chain-extended (molecular weight increased) by polymerization using Lewis acid salts as catalyst. Molecular weights are increased with little or no by-product formation. These polyimides can be shaped and formed prior to the polymerization. The aromatic polyimides appropriate for chain-extending are formed by the reaction of aromatic dianhydrides, aromatic diamines and nitrile compounds such as aminobenzyl cyanide and aminobenzonitrile.

    Date Issued:
    1977-11-29
    Record Visibility:
    Public
    Resource Type
    Patent
  • Inventor(s):
    Steven R. Schmid
    Patent Number:
    US 8323349 B2
    Description:

    A bearing surface having increased wear resistance. Generally, certain aspects of the present invention are directed to an implant design based on concepts of unidirectional load application and the use of engineered surfaces to increase the amount of lubricant at the bearing surface, to thereby reduce wear of the bearing surface. Surfaces of certain bearing surface embodiments are fabricated to maximize lubricant retention, encourage lubricant entrainment, and/or restrict lubricant escape fr…

    Date Issued:
    2012-12-04
    Record Visibility:
    Public
    Resource Type
    Patent