Patents Represented by Attorney Melvyn M. Kassenoff
  • Patent number: 5316553
    Abstract: Salts of ionic dyes with compounds which contain at least one ammonium, cycloammonium or immonium group and at least one aliphatic, cycloaliphatic or carbonyl radical-substituted aromatic group or containing a piperazine or piperidine group or a heteroaromatic group selected from those of the triazine, pyrimidine, quinazoline, quinoxaline, phthalazine or phthalimidine series or which contain at least two carboxylic acid groups, at least one amino group and at least one carboxylic acid group or at least one sulfonic acid group and one aliphatic, cycloaliphatic, monocyclic aromatic or heteroaromatic group are useful for dyeing synthetic materials, particularly synthetic polyamides in the mass. The obtained dyeings have exceptionally good wet fastness.
    Type: Grant
    Filed: July 26, 1991
    Date of Patent: May 31, 1994
    Assignee: Sandoz Ltd.
    Inventors: Bansi L. Kaul, Angelos-Elie Vougioukas
  • Patent number: 5312819
    Abstract: The invention concerns pharmaceutical compositions comprising clozapine and a radical scavenger.
    Type: Grant
    Filed: August 2, 1991
    Date of Patent: May 17, 1994
    Assignee: Sandoz Ltd.
    Inventors: Volker Fischer, Ronald P. Mason
  • Patent number: 5304244
    Abstract: Pigments of the formulaA.sub.m --F--R.sub.n,whereineach A is a monobasic or dibasic acid group,F is the residue of a dye,each R is a group containing an aliphatic-, cycloaliphatic- or aliphatic-heterocyclic-bound imino or amino nitrogen atom,m is 1 or 2, andn is equal to m when A is a monobasic acid group and equal to 2m when A is a dibasic acid group.
    Type: Grant
    Filed: February 17, 1993
    Date of Patent: April 19, 1994
    Assignee: Sandoz Ltd.
    Inventors: Jurgen Goldmann, Bansi L. Kaul
  • Patent number: 5300422
    Abstract: A screening method for detecting the vulnerability of patients on clozapine therapy to developing agranulocytosis which comprises establishing the concentration of N-desmethylclozapine in the blood or bone marrow of said patient. In addition, a method of determining patient sensitivity to N-desmethylclozapine is provided which comprises collecting heparinized blood and assaying it for stem cell sensitivity to N-desmethylclozapine.
    Type: Grant
    Filed: December 4, 1991
    Date of Patent: April 5, 1994
    Assignee: Case Western Reserve University
    Inventors: Stanton L. Gerson, Herbert Meltzer
  • Patent number: 5290946
    Abstract: A process for synthesizing compounds of the formula ##STR1## utilizing, as intermediates, oxalyl chloride or bromide and compounds of the formulae R.sub.1 R.sub.2 N--CHO and CH.sub.2 .dbd.CH--O--R.sub.10 are processes for synthesizing compounds of the formula ##STR2## utilizing, as intermediates, compounds of Formula I wherein R.sub.1 is phenyl or substituted phenyl or intermediates in the synthesis of the compounds of formula I which intermediates have the formula ##STR3## wherein R.sub.1 is C.sub.1-3 alkyl, phenyl or phenyl substituted by 1 to 3 substituents each of which is independently C.sub.1-3 alkyl, C.sub.1-3 alkoxy, fluoro, chloro, bromo or nitro (maximum of two nitro groups),R.sub.2 is C.sub.1-3 alkyl,R.sub.10 is C.sub.1-6 alkyl,X.sup..crclbar. is chloride or bromide, andR.sub.3 -R.sub.6 are as defined in the specification.
    Type: Grant
    Filed: November 23, 1992
    Date of Patent: March 1, 1994
    Assignee: Sandoz Ltd.
    Inventors: George T. Lee, Prasad K. Kapa, Oljan Repic
  • Patent number: 5284836
    Abstract: The invention discloses certain heterocyclic, thioether, keto-ester and alkyl phospholipids, e.g., heterocyclic phospholipids having the formula ##STR1## where R is n-C.sub.14 -C.sub.20 alkyl or O-n-C.sub.14 -C.sub.20 alkyl; each R.sub.1 is methyl or ethyl; n is 2-6; and X is --CH.sub.2 --m, where m is 2-4, CH.sub.2 CH.sub.2 O or CH.sub.2 CH.sub.2 S, or a corresponding hydrate thereof, which compounds are useful in treating multiple sclerosis.
    Type: Grant
    Filed: December 4, 1992
    Date of Patent: February 8, 1994
    Assignee: Sandoz Ltd.
    Inventor: William J. Houlihan
  • Patent number: 5284826
    Abstract: Hydroxy-substituted [(D)Ser].sup.8 -Ciclosporin derivatives, particularly [O-(2-hydroxyethyl)(D)Ser].sup.8 -Ciclosporin, have advantageous pharmacological properties and are useful as immunosuppressants, for example in the treatment of transplant rejection and autoimmune diseases.
    Type: Grant
    Filed: August 27, 1992
    Date of Patent: February 8, 1994
    Assignee: Sandoz Ltd.
    Inventor: Marcel K. Eberle
  • Patent number: 5284967
    Abstract: Compounds of formula I ##STR1## wherein R.sub.1 and R.sub.2 are the same or different and each represent hydrogen, alkyl, alkenyl, cycloalkyl, aryl or aralkyl are produced by a new environmentally acceptable process.
    Type: Grant
    Filed: September 16, 1992
    Date of Patent: February 8, 1994
    Assignee: Biochemie Gesellschaft m.b.H.
    Inventor: Ingolf Macher
  • Patent number: 5283325
    Abstract: 1:2 metal complexes of the formula ##STR1## wherein each of R.sub.1 and R.sub.3 is independently hydrogen or nitro, with the proviso that when a ring has two nitro groups, they are meta to each other,each of R.sub.2 and R.sub.4 is independently hydrogen, chloro or --SO.sub.3 M,each of R.sub.5 and R.sub.6 is independently hydrogen, --COR.sub.7, --CONHR.sub.8 or --SO.sub.2 R.sub.9,wherein R.sub.7 is C.sub.1-6 alkyl, C.sub.1-6 alkoxy, phenyl(C.sub.1-4 -alkyl) or phenyl(C.sub.1-4 -alkyl) the phenyl group of which is substituted by 1 or 2 substituents selected from halo, C.sub.1-4 -alkyl, C.sub.1-4 alkoxy, nitro, amino, --COOM, --SO.sub.3 M and acetamido,R.sub.8 is hydrogen, C.sub.1-6 alkyl; phenyl; phenyl substituted by 1 or 2 substituents selected from halo, C.sub.1-4 -alkyl, C.sub.1-4 alkoxy, nitro, amino, --COOM, --SO.sub.3 M and acetamido; naphthyl or naphthyl monosubstituted by chloro, amino, phenylamino, acetamido, benzamido or --SO.sub.3 M, andR.sub.9 is C.sub.
    Type: Grant
    Filed: December 2, 1991
    Date of Patent: February 1, 1994
    Assignee: Sandoz Ltd.
    Inventor: Peter Bitterli
  • Patent number: 5281605
    Abstract: A compound of formula I ##STR1## wherein R.sub.1 is C.sub.1-4 alkyl, C.sub.3-4 alkenyl or (C.sub.3-5 cycloalkyl)-methyl, R.sub.2 is C.sub.1-4 alkyl, [hydroxy- or (C.sub.1-4 alkoxy)-substituted C.sub.1-3 alkyl]-methyl, (C.sub.3-5 cycloalkyl)-methyl, tetrahydrofuran 2-yl-methyl or 1,3-dioxolan-2-yl-methyl, R.sub.3 and R.sub.4 are each hydrogen, hydroxymethyl, methoxymethyl or N,N-dimethylcarbamoyloxymethyl, R.sub.5 is hydroxy or methoxy, R.sub.6 is hydrogen, hydroxy, methoxy or halogen and R.sub.7 is in the 2- or 3-position and is hydroxy, methoxy or halogen, or together with R.sub.5 is 3,4-methylendioxy, or together with R.sub.6 is 2,3-methylenedioxy and their physiologically-hydrolysable and -acceptable esters are useful in the treatment (symptomatic and prophylactic) of obstructive or inflammatory airways disease, in particular asthma, and disease characterised by or having an aetiology comprising morbid eosinophil accumulation or activation, e.g. hypereosinophilia.
    Type: Grant
    Filed: September 27, 1991
    Date of Patent: January 25, 1994
    Assignee: Sandoz Ltd.
    Inventors: Zoltan L. Kis, John Morley
  • Patent number: 5278157
    Abstract: The invention relates to a novel stable form of cephradine, processes for its production and intermediates used therein.
    Type: Grant
    Filed: September 5, 1991
    Date of Patent: January 11, 1994
    Assignee: GeMa, S.A.
    Inventors: Jose D. Meseguer, Rafael B. Codes, Santiago A. Ciriza
  • Patent number: 5272168
    Abstract: The invention provides use of a 5HT-3 antagonist in the manufacture of a medicament suitable for the prevention or reduction of dependence on a dependence-inducing agent.
    Type: Grant
    Filed: January 15, 1993
    Date of Patent: December 21, 1993
    Assignee: Sandoz Ltd.
    Inventors: Assunta Imperato, Dietmar Romer
  • Patent number: 5272154
    Abstract: 3,7-disubstituted indole derivatives of formula I ##STR1## wherein R.sub.1, R.sub.2, n, X, Y and Z are as defined in the description are useful for the treatment of psychiatric disorders.
    Type: Grant
    Filed: December 18, 1991
    Date of Patent: December 21, 1993
    Assignee: Sandoz Ltd.
    Inventors: Arnold K. Dixon, Rudolf K. A. Giger
  • Patent number: 5262422
    Abstract: The invention relates to the compound of formula I ##STR1## in free base form or in acid addition salt form its preparation and use as a medicament for glaucoma, depression, Morbus Parkinsonism or cocaine abuse.
    Type: Grant
    Filed: February 19, 1993
    Date of Patent: November 16, 1993
    Assignee: Sandoz Ltd.
    Inventors: Peter Gull, Rudolf Markstein
  • Patent number: 5260279
    Abstract: A nutritionally complete feeding composition contains soluble fiber, especially hydrolyzed guar gum or pectin. This composition provides nourishment to colon cells, preventing bacterial sepsis and also preventing diarrhea.
    Type: Grant
    Filed: May 4, 1992
    Date of Patent: November 9, 1993
    Assignee: Sandoz Ltd.
    Inventor: Norman A. Greenberg
  • Patent number: 5260321
    Abstract: Use of calcium antagonists of formula I ##STR1## wherein the substituents have various significances in the treatment of conditions related directly or indirectly to ionized calcium levels in the blood and combinations of calcium antagonists, e.g. of formula I, with calcitonins.
    Type: Grant
    Filed: July 12, 1991
    Date of Patent: November 9, 1993
    Assignee: Sandoz Ltd.
    Inventors: Robert P. Hof, Moise Azria
  • Patent number: 5259367
    Abstract: Method for placing a guide wire through a gastrostomy tube which has a plug through which only the guide wire can pass in slidable communication. The plug prevents air from escaping from the stomach, thus, preventing the collapse of the stomach during the guide wire placement. The plug may comprise a substantially cylindrical member having a longitudinal bore for receiving the guide wire in slidable communication.
    Type: Grant
    Filed: October 25, 1991
    Date of Patent: November 9, 1993
    Assignee: Sandoz Ltd.
    Inventors: Donald F. Kirby, Lester D. Michels, Frederick K. Reuning
  • Patent number: 5256640
    Abstract: Nutritional supplements and methods of use of the supplements to maximally stimulate gallbladder contraction in patients undergoing rapid weight loss, to prevent the build up of bilary sludge and/or gallstones.
    Type: Grant
    Filed: September 30, 1991
    Date of Patent: October 26, 1993
    Assignee: Sandoz Ltd.
    Inventors: Francis J. Peterson, Louis J. Arrone
  • Patent number: 5231085
    Abstract: The invention provides immunostimulatory compositions comprising an aggregate immunostimulatory amount ofa) a compound associated with the synthesis of polyamines,b) a nucleobase source,c) omega-3 polyunsaturated fatty acids, andd) omega-6 polyunsaturated fatty acidsthe use of such compositions and their manufacture.
    Type: Grant
    Filed: February 19, 1992
    Date of Patent: July 27, 1993
    Assignee: Sandoz Ltd.
    Inventors: J. Wesley Alexander, Vigen K. Babayan, George L. Blackburn, Frank B. Cerra, John Daly, Mitchell T. Gersovitz, John E. Kinsella, Jerome J. LiCari, Frederick Rudolph, Charles T. Van Buren
  • Patent number: 5229377
    Abstract: A process for preparing the (R) stereoisomer of 2,2-bis(hydroxmethyl)-tetrahydrofuran monobutyrate comprising subjecting the dibutyric ester of the 2,2-bis(hydroxymethyl)-tetrahydrofuran to enzymatic hydrolysis. The invention also relates to the novel (R) stereoisomer prepared by the instant process and to its more stable forms. In addition, the invention relates to the use of the (R) stereoisomer in preparing stereoisomers of pharmacologically active compounds and to certain specific stereoisomers produced thereby.
    Type: Grant
    Filed: April 26, 1991
    Date of Patent: July 20, 1993
    Assignee: Sandoz Ltd.
    Inventors: Heinrich Estermann, Prasad K. Kapa, Russell L. Underwood, William J. Houlihan