Patents Examined by John F. Terapane
  • Patent number: 5503817
    Abstract: A novel curing process for preceramic organosilicon polymers is disclosed which involves contact with a gaseous hydrogen halide.
    Type: Grant
    Filed: January 16, 1986
    Date of Patent: April 2, 1996
    Assignee: Hoechst Celanese Corp.
    Inventor: Paul Foley
  • Patent number: 5317901
    Abstract: A method for determining whether surface connected, through thickness defects exist in a coated carbon-carbon composite article. The method involves the immersion of the coated article in a low viscosity liquid; if a stream of bubbles rises from the surface of the coating, such bubbles indicate the existence of at least one surface connected, through thickness defect in the coating.
    Type: Grant
    Filed: December 10, 1985
    Date of Patent: June 7, 1994
    Assignee: United Technologies Corporation
    Inventor: Abdus S. Khan
  • Patent number: 5032677
    Abstract: A class of fluorescent rare earth chelates and the ligands upon which they are based whose molecular structure incorporates a plurality of substituted arylpyridine diacid units attached to a central template structure is disclosed. These ligands function as efficient energy transfer groups in fluorescent tagging reagents and tracers.
    Type: Grant
    Filed: November 6, 1987
    Date of Patent: July 16, 1991
    Assignee: Baxter International Inc.
    Inventors: Ron L. Hale, Dennis W. Solas
  • Patent number: 4961867
    Abstract: Novel compositions are prepared from (1) amino substituted pyrazine compounds such as pyrazinamine and (2) at least one of (a) a carboxylic acid, (b) carboxylic acid anhydride, (c) carboxylic acid ester or (d) combination thereof, such as tall oil fatty acid, and (3) optionally in the presence of sodium hydride. These novel compositions are useful as oil and gas well corrosion inhibitors.
    Type: Grant
    Filed: February 14, 1989
    Date of Patent: October 9, 1990
    Assignee: The Dow Chemical Company
    Inventor: Duane S. Treybig
  • Patent number: 4961878
    Abstract: A composition for inhibiting metal corrosion in a closed aqueous cooling system comprising an aqueous mixture of (a) a nitrate, (b) a silicate, (c) an acrylate polymer, (d) an amine oxide and (e) tolyltriazole. A preferred embodiment also includes a molybdate.
    Type: Grant
    Filed: November 9, 1988
    Date of Patent: October 9, 1990
    Assignee: Drew Chemical Corporation
    Inventor: Michael A. Mullins
  • Patent number: 4943385
    Abstract: A liquid crystalline compound useful as a component of liquid crystal compositions for liquid crystal display elements, exhibiting ferroelectric liquid crystal phases over a broad temperature range including room temperature, and a liquid crystal composition containing the same are provided. The compound is a thioether compound of the formula ##STR1## wherein R.sup.1 is a 2-10C alkyl; R.sup.2 is methyl or ethyl; but the carbon number of R.sup.1 is always larger than that of R.sup.2 ; A is ##STR2## wherein X is H, halogen or CN; Y is a 1-18C alkyl or alkoxy; l is 1 or 2; and * indicates optically active carbon atom.
    Type: Grant
    Filed: June 14, 1988
    Date of Patent: July 24, 1990
    Assignee: Chisso Corporation
    Inventors: Hiromichi Inoue, Takashi Inukai, Shinichi Saito, Kazutoshi Miyazawa, Kouji Ohno
  • Patent number: 4943427
    Abstract: A diagnostic agent for heart disease comprising a radiolabeled monoclonal antibody having specificity to cardiac myosin heavy chain or its active fragment is disclosed. The diagnostic agent is useful for topographic diagnosis of heart disease such as myocardial infarction and myocardial disease by imaging.
    Type: Grant
    Filed: March 25, 1985
    Date of Patent: July 24, 1990
    Assignee: Yamasa Shoyu Kabushiki Kaisha
    Inventors: Yoshio Yazaki, Masahito Sugi
  • Patent number: 4941992
    Abstract: Novel compounds suitable for use as chiral dopants in ferroelectric smectic liquid crystal materials comprising an optically active derivative of an .alpha.-amino acid of the formula ##STR1## wherein R.sub.1 is selected from the group consisting of C.sub.1-20 alkyl or alkoxy, R is C.sub.1-20 n-alkyl and Y is C.sub.1-20 alkyl. A liquid crystal mixture and a device using these compounds are also described.
    Type: Grant
    Filed: July 17, 1987
    Date of Patent: July 17, 1990
    Assignee: The Secretary of State for Defence in Her Britannic Majesty's Government of the United Kingdom of Great Britain and Northern Ireland
    Inventors: Adam Jackson, Richard M. Scrowston, George W. Gray, David Lacey, Kenneth J. Toyne
  • Patent number: H811
    Abstract: A biocidal composition containing, as active ingredients, at least one imidazole compound represented by formula (I): ##STR1## wherein R.sup.1 represents a phenyl group, a halogen-substituted phenyl group, an alkyl group, or a halogen-substituted alkyl group; and R.sup.2 represents a halogen atom, and at least one other specific compound. The combination of the compound represented by formula (I) and other specific compound can produce an unexpected effect in amount required and biocidal spectrum.
    Type: Grant
    Filed: March 13, 1989
    Date of Patent: August 7, 1990
    Assignee: Ishihara Sangyo Kaisha Ltd.
    Inventors: Rikuo Nasu, Terumasa Komyoji, Toshio Nakajima, Kazumi Suzuki, Keiichiro Ito, Tekeshi Ohshima, Hideshi Yoshimura
  • Patent number: H815
    Abstract: The present invention relates to a lubricant composition containing a minor amount of a thermally stable modified selectively hydrogenated alkenyl arene/conjugated diene copolymer wherein a primary or secondary amine functional group is grafted to the block copolymer primarily in the alkenyl arene blocks thereof.
    Type: Grant
    Filed: February 17, 1988
    Date of Patent: September 4, 1990
    Inventors: Carl L. Willis, Andy M. Arismendi, Jr.
  • Patent number: H817
    Abstract: A photographic light-sensitive material comprising a support having provided thereon at least one silver halide emulsion layer, wherein said light-sensitive material contains:(1) a compound represented by formula (I):PWR--Time--.sub.t PUG (I)wherein PWR represents a group capable of releasing (Time--.sub.t PUG upon being reduced; PUG represents a photographically useful group; Time represents a group capable of releasing PUG through a reaction subsequent to the release from PWR in the form of --Time--.sub.t PUG; and t represents 0 or 1, and(2) a polymer comprising at least 10 repeating units derived from the same monomer and having a molecular weight of 1000 or more. The photographic light-sensitive material exhibits both high activity of a compound capable of releasing a photographically useful group during development processing and preservation stability before development processing.
    Type: Grant
    Filed: April 29, 1988
    Date of Patent: September 4, 1990
    Assignee: Fuji Photo Film Co., Ltd.
    Inventors: Masaharu Toriuchi, Keizo Koya
  • Patent number: H819
    Abstract: Palladium-109, a beta-emitting radionuclide, when chelated to anti-melanoma monoclonal antibody demonstrates high uptake in melanoma and thus is useful for tumor therapy.
    Type: Grant
    Filed: April 30, 1984
    Date of Patent: September 4, 1990
    Assignee: The United States of America as represented by the Secretary of Energy
    Inventors: Suresh C. Srivastava, Rashid A. Fawwaz, Soldano Ferrone
  • Patent number: H825
    Abstract: A process for pretreating a natural gas stream having greater than about 40 mole % CO.sub.2 to reduce the amount of CO.sub.2 in the gas stream prior to treatment in a conventional sweetening process comprising passing the gas stream through a separator zone which condenses the C.sub.6 plus hydrocarbons and then passing the gas stream from the separator into a stripping zone which further reduces the temperature of the gas stream to remove a substantial quantity of CO.sub.2 as a liquid condensate.
    Type: Grant
    Filed: May 20, 1988
    Date of Patent: October 2, 1990
    Assignee: Exxon Production Research Company
    Inventor: Joe R. Green
  • Patent number: H826
    Abstract: The present invention relates to a lubricant composition containing a minor amount of a thermally stable moldified selectively hydrogenated alkenyl arene/conjugated diene copolymer wherein an amide functional group is grafted to the block copolymer primarily in the alkenyl arene blocks thereof.
    Type: Grant
    Filed: February 17, 1988
    Date of Patent: October 2, 1990
    Inventors: Carl L. Willis, Andy M. Arismendi, Jr.
  • Patent number: H829
    Abstract: Overcharge protection is provided for a rechargeable lithium-organic eleclyte battery by including lithium bromide in the electrolyte.
    Type: Grant
    Filed: June 13, 1985
    Date of Patent: October 2, 1990
    Assignee: The United States of America as represented by the Secretary of the Army
    Inventor: Wishvender K. Behl
  • Patent number: H830
    Abstract: A novel silver halide color photographic material containing a desilvering accelerator releasing compound, which comprises at least one light-sensitive silver halide emulsion layer on a support, wherein at least one of said emulsion layer and a non-light sensitive hydrophilic layer(s) contains at least one compound represented by the formula (I)PWR--Time--.sub.t BA (I)wherein PWR represents a group which undergoes reduction to release (Time--.sub.t BA; BA represents a group which becomes a desilvering accelerator after being released; Time represents a group which releases BA through a reaction after being released from PWR as (Time--.sub.t BA; and t represents an integer of 0 or 1.
    Type: Grant
    Filed: May 2, 1988
    Date of Patent: October 2, 1990
    Inventors: Naoyasu Deguchi, Shinji Ueda, Koki Nakamura
  • Patent number: H831
    Abstract: A tubular connected series of biofilm samplers is provided for monitoring biofouling by microorganisms in a continuous flow stream. Tubular bypasses are provided around each sampler, so that each sampler is removable for inspection of biofouling without interruption of the continuous flow stream. In addition, each sampler has a contoured surface which is in contact with the continuous flow stream and which is flush with the inner surface of the tubulars connecting the samplers.
    Type: Grant
    Filed: April 20, 1987
    Date of Patent: October 2, 1990
    Assignee: Shell Oil Company
    Inventors: Joseph P. Salanitro, James S. Hokanson
  • Patent number: H876
    Abstract: A bitumen composition comprising an asymmetric, radial polymer containing a plurality of block copolymer arms comprising at least one polymeric block of a monoalkenyl aromatic hydrocarbon and at least one polymeric block of a conjugated diolefin polymer and a plurality of conjugated diolefin polymer arms. The bitumen composition exhibits increased toughness and tenacity as determined by the Benson method and is particularly useful in road paving applications. Best results are achieved when the asymmetric, radial block copolymer is sulfur vulcanized after incorporation into the bitumen composition.
    Type: Grant
    Filed: November 17, 1988
    Date of Patent: January 1, 1991
    Inventors: Dennis W. Gilmore, James R. Erickson, James H. Collins
  • Patent number: H914
    Abstract: Apparatus is provided for supporting one or more contactor stages used to remove radioactive materials from aqueous solutions. The contactor stages include a housing having an internal rotor, a motor secured to the top of the housing for rotating the rotor, and a drain in the bottom of the housing. The support apparatus includes two or more vertical members each secured to a ground support that is horizontal and perpendicular to the frame member, and a horizontally disposed frame member. The frame member may be any suitable shape, but is preferably a rectangular tube having substantially flat, spaced top and bottom surfaces separated by substantially vertical side surfaces. The top and bottom surfaces each have an opening through which the contactor housing is secured so that the motor is above the frame and the drain is below the frame during use.
    Type: Grant
    Filed: October 21, 1988
    Date of Patent: May 7, 1991
    Assignee: The United States of America as represented by the United States Department of Energy
    Inventors: Ralph A. Leonard, Robert C. Frank
  • Patent number: RE33856
    Abstract: A method of improving high temperature fluid loss and rheology stabilization of high calcium brine clay-containing oil well drilling fluids which comprises adding thereto a stabilizing amount of a water-soluble terpolymer composition comprising:______________________________________ Ingredients % by weight ______________________________________ NaAMPS 72-3.8 N,N-dimethylacrylamide 13.5-0.7 Acrylonitrile 9.5-0.5 ______________________________________said composition containing lignin, modified lignin, brown coal or modified brown coal in an amount ranging between 5-95% with the lignin, modified lignin, brown cell or modified brown coal having been present during the polymerization of the water-soluble polymer.
    Type: Grant
    Filed: January 15, 1988
    Date of Patent: March 24, 1992
    Assignee: Nalco Chemical Company
    Inventors: David M. Giddings, Charles D. Williamson