Patents Examined by A. Varma
  • Patent number: 5420116
    Abstract: Methods for treating disorders of the upper and lower airways, which disorders involve dehydration of the respiratory epithelium and hyperadhesion of mucus, using adenosine 5'-triphosphate disodium salt or uridine 5'-triphosphate, alone or in combination with amiloride.
    Type: Grant
    Filed: June 4, 1992
    Date of Patent: May 30, 1995
    Assignee: Synthelabo
    Inventors: Edith Puchelle, Rachid Benali, Denis Pierrot, Sophie Girod, Jean-Marie Zahm, Aline Moreau
  • Patent number: 5413915
    Abstract: A metabolically active biological component having mixed function oxidation activity. e.g., microsomal P-450 oxidase enzyme complex, is effective in the presence of NADPH and moisture when dispersed in a thin film of a generally neutral hydrophilic film-forming binder. e.g., gelatin, to convert a broad spectrum of carcinogenic substances, into metabolic intermediates, which can be detected, preferably by a colorimetric indicator present in the binder film or an adjacent binder film and undergoing a visible color change. The film or films can be carried, e.g., as spots by a suitable support. e.g., glass or plastic sheet forming a direct-acting self-contained badge-type indicator. The colorimetric indicator is preferably a chemically reduced dye precursor of a polyarylmethane dye or analog thereof, e.g., pararosaniline or malachite green.
    Type: Grant
    Filed: July 12, 1991
    Date of Patent: May 9, 1995
    Assignee: Resource Technologies Group, Inc.
    Inventors: George D. Case, Paul J. Bekowies
  • Patent number: 5413732
    Abstract: The present invention provides lyophilized reagent spheres comprising reagents suitable for analysis of biological samples, in particular analysis of blood samples in centrifugal analyzers. Also provided are diluents which are conveniently used in such analyzers.
    Type: Grant
    Filed: August 19, 1991
    Date of Patent: May 9, 1995
    Assignee: Abaxis, Inc.
    Inventors: Steven N. Buhl, Bhaskar Bhayani, Chi-Sou Yu, Thuy N. Tang
  • Patent number: 5374711
    Abstract: This invention relates to novel elsamicin A derivatives wherein the 2"-amino group is selectively modified by acylation or alkylation, a process for producing said elsamicin A derivatives, an antitumor composition containing the same as the active ingredient, and a method for therapy using said compositions.
    Type: Grant
    Filed: September 15, 1993
    Date of Patent: December 20, 1994
    Assignee: Bristol-Myers Squibb Company
    Inventors: Soichiro Toda, Haruhiro Yamashita, Takayuki Naito, Yuji Nishiyama
  • Patent number: 5308756
    Abstract: A chromogenic assay for determination of Protein S, using an indicator of Factor Xa as a measure of Protein S concentration. This technique utilizes the dependency of activated Protein C on Protein S in order to inactivate a known portion of Factor VIII. Residual Factor VIII is then activated and acts with Factor IXa to activate Factor X. The chromogenic substrate is then cleaved by Factor Xa and the rate of conversion of the indicator molecule is an indirect indicator of free Protein S.
    Type: Grant
    Filed: November 20, 1991
    Date of Patent: May 3, 1994
    Assignee: Baxter Diagnostics Inc.
    Inventors: Piet van de Waart, Barry J. Woodhams
  • Patent number: 5306722
    Abstract: Thymidine kinase inhibitor of formula I ##STR1## in which R is C.sub.1-6 alkyl or AR(CH.sub.2).sub.n --, wherein Ar represents phenyl optionally substituted with one to five same or different halogen, C.sub.1-6 alkyl or C.sub.1-6 alkyloxy; and n equals one to six.A further aspect of the present invention provides a method of inhibiting viral thymidine kinase. Yet another aspect of the invention relates to treating herpes simplex viral infections in mammals. Yet another aspect of the invention provides a pharmaceutical formulation.
    Type: Grant
    Filed: September 2, 1992
    Date of Patent: April 26, 1994
    Assignee: Bristol-Myers Squibb Company
    Inventors: Choung U. Kim, Bing Y. Luh, Peter F. Misco
  • Patent number: 5298414
    Abstract: Two enzymes, one an acetylmorphine carboxyesterase (AMCE), the other a morphine dehydrogenase (MDH), have been isolated from bacteria. The AMCE degrades heroin to morphine and the MDH oxidises morphine to morphinone, with the aid of a cofactor. These reactions are used in detection of heroin (using the two reactions coupled together) or morphine. The enzymes can be incorporated in sensors for this purpose.
    Type: Grant
    Filed: November 12, 1991
    Date of Patent: March 29, 1994
    Assignee: British Technology Group Limited
    Inventors: Neil C. Bruce, Lauren D. G. Stephens, Christopher R. Lowe
  • Patent number: 5229371
    Abstract: This invention relates to novel elsamicin A derivatives having an alkylidene group on the 3' and 4'-OH group or a tetrahydropyranyl group on the 4'-OH group, a process for producing said elsamicin A derivatives, antitumor composition containing the same as the active ingredient, and a method for therapy using said compositions.
    Type: Grant
    Filed: November 10, 1992
    Date of Patent: July 20, 1993
    Assignee: Bristol-Myers Squibb Company
    Inventors: Soichiro Toda, Haruhiro Yamashita, Takayuki Naito, Yuji Nishiyama
  • Patent number: 5218098
    Abstract: 5-(.alpha.-D-glucopyranosyloxymethyl)-furan-2-carboxaldehyde (GMF) is produced from isomaltulose by heating a solution of isomaltulose in a strongly polar aprotic solvent in the presence of an acidic ion-exchanger, either batchwise or by percolation of the solution through a column filled with the ion-exchanger. Novel derivatives of GMF of the formula (I) ##STR1## wherein R' is a hydrogen atom, an acyl group or an alkyl group and X represents --CH.sub.2 OH, --COOH, --C(H).dbd.NOH, --CN, --CH.sub.2 NHR" or --CH.dbd.CR"R'", where R" is a hydrogen atom, an acyl or aryl group or an alkyl group with up to 20 C atoms and R'" is a hydrogen atom, --NO.sub.2, --CN, --COOalkyl or acyl are described, and also their preparation and use for the preparation of surface-active compounds.
    Type: Grant
    Filed: October 31, 1990
    Date of Patent: June 8, 1993
    Assignee: Sudzucker AG Mannheim/Ochsenfurt
    Inventors: Frieder W. Lichtenthaler, Dierk Martin, Thomas Weber, Hubert Schiweck
  • Patent number: 5212161
    Abstract: The present invention relates to novel derivatives of 2'-deoxyuridine substituted in the 5-, 3'- or 5'-position by .alpha.-aminoacyl groups, to a process for their preparation and the drugs in which they are present.These derivatives have the following general formula: ##STR1## in which R is selected from an alkyl or alkenyl radical having from 1 to 4 carbon atoms, an aryl radical or a halogen, it being possible for said alkyl, alkenyl and aryl radicals to contain at least one halogen substituent, and a radical of the formula --NH--R.sub.1, in which R.sub.1 is an amino acid residue or a peptide residue containing from 2 to 6 amino acids; andR' and R" are selected from a hydroxyl radical and a radical of the formula --NH--R.sub.1, in which R.sub.1 is as defined above,with the proviso that R' and R" are not simultaneously --NH--R.sub.1 and that, when R is --NH--R.sub.1, R' and R" are simultaneously a hydroxyl group.Application: treatment of cancers and viral infections.
    Type: Grant
    Filed: August 17, 1990
    Date of Patent: May 18, 1993
    Assignee: Institut de Recherches Chimiques et Biologiques Appliquees (I.R.C.E.B.A.)
    Inventors: Jean-Luc Moriniere, Michelle Faulques, Claude Rousseau, Bernard Danree, Claude Marquer, Patrick Saur, Jean Lemoine, Jean-Yves Lacolle
  • Patent number: 5204330
    Abstract: A compound of formula (I) or a pharmaceutically acceptable salt thereof: ##STR1## wherein: R.sub.1 is a group --CH.sub.2 --X where X is hydrogen, halogen, --CN, --N.sub.3, --OC(O)R.sub.5, --S(O).sub.n R.sub.5, --SH, --OC(O)NHR.sub.5, --NHCONHR.sub.5 or --NR.sub.6 R.sub.7, where R.sub.5 is hydrogen optionally substituted C.sub.1-8 alkyl, or aryl, heteroaryl, aryl C.sub.1-4 alkyl or heteroaryl C.sub.1-4 alkyl in each of which the aromatic moiety is optionally substituted with the proviso that when X is --S(O).sub.n R.sub.5, R.sub.5 does not represent hydrogen, R.sub.6 and R.sub.7 are independently hydrogen or C.sub.116 alkyl, or one of R.sub.6 and R.sub.7 is hydrogen and the other is --formyl, C.sub.2-8 alkanoyl, dialkoxyphosphoryl, aroyl, heteroaroyl, aryl C.sub.1-4 alkanoyl, heteroaryl C.sub.1-4 alkanoyl, C.sub.1-8 alkylsulphonyl, arylsulphonyl, heteroarylsulphonyl, aryl C.sub.1-4 alkylsulphonyl or heteroaryl C.sub.1-4 alkylsulphonyl, where any aromatic moiety in R.sub.6 or R.sub.
    Type: Grant
    Filed: December 6, 1990
    Date of Patent: April 20, 1993
    Assignee: Beecham Group p.l.c.
    Inventors: Michael J. Driver, Alexander R. Greenlees, David T. MacPherson
  • Patent number: 5200324
    Abstract: A method is provided for the screening of senile dementia of the Alzheimer type (Alzheimer's disease) by testing for an anomalous molecular form of acetylcholinesterase in cerebrospinal fluid of a patient.
    Type: Grant
    Filed: August 1, 1991
    Date of Patent: April 6, 1993
    Assignee: E. R. Squibb & Sons, Inc.
    Inventors: Dasakumar S. Navaratnam, John D. Priddle, Brendon I. McDonald, A. David Smith, Kim A. Jobst
  • Patent number: 5198465
    Abstract: A composition based on aminoacids and free from hydroxy-proline or hydroxy-lysine useful for preventing and treating precursors deficiencies in the synthesis of collagen comprising proline, glycine, lysine, vitamin C, and one or more compounds selected in the group consisting of .alpha.-ketoglutaric acid, methionine, cysteine, cystine, valine as well as pharmaceutically acceptable diluents and excipients is described.
    Type: Grant
    Filed: June 19, 1991
    Date of Patent: March 30, 1993
    Inventor: Francesco S. Dioguardi
  • Patent number: 5130132
    Abstract: An anti-smoking remedy with biochemical effect. The remedy consists of non-toxic plant components including Radix bupleuri, Radix peucedani and Rhizoma cimicifugae. Additional components to the preparation can include Rhizome phragmiles, or a mixture of Pinellia ternata and either Liguiritiae or Robinia pseudo acacia.
    Type: Grant
    Filed: July 13, 1989
    Date of Patent: July 14, 1992
    Inventor: Vladimir Badmajew
  • Patent number: 5126438
    Abstract: 6,6'-dihalo-6,6'-dideoxy-1',2,3,3',4,4'-hexa-O-methylsucrose compounds are disclosed as useful intermediates for the synthesis of water-absorbent polyethers. These compounds may also be used as intermediates in the preparation of other difunctional monomers and metal complexing agents from sucrose.
    Type: Grant
    Filed: December 7, 1990
    Date of Patent: June 30, 1992
    Assignee: Hawaiian Sugar Planters' Association
    Inventor: Navzer D. Sachinvala
  • Patent number: 5124349
    Abstract: Storage stable pesticide compositions comprising neem seed extracts which contain azadirachtin as the active pesticidal ingredient wherein the compositions are characterized by their non-degrading solvent systems. In a first embodiment, the pesticide compositions contain solvent systems characterized as having greater than 50% by volume aprotic solvents and less than 15% by volume water. In a second embodiment, the pesticide compositions contain solvent systems characterized as having greater than 50% by volume alcohol and less than 5% by volume water. The pesticide compositions contain surfactant concentrations of at least about 1.0%, up to 10%.
    Type: Grant
    Filed: October 31, 1990
    Date of Patent: June 23, 1992
    Assignee: W. R. Grace & Co.-Conn.
    Inventors: Charles G. Carter, Clifford J. Hull, Jr., Narender P. Luthra, James F. Walter
  • Patent number: 5120836
    Abstract: A 6,6'-diamino-6,6'-dideoxy-1',2,3,3',4,4'-hexa-O-methylsucrose compound is disclosed which is useful as an intermediate compound to make water-absorbent polyamides, polyurethanes and polyamines.
    Type: Grant
    Filed: December 7, 1990
    Date of Patent: June 9, 1992
    Assignee: Hawaiian Sugar Planter's Association
    Inventor: Navzer D. Sachinvala