Patents Assigned to ICN Pharmaceuticals, Inc.
  • Patent number: 5849903
    Abstract: Oligonucleotides are provided which are effective in inhibiting the growth, metastasis and/or angiogenesis of tumors, including particularly melanoma and/or lung cancer. Methods are also provided for use of these oligonucleotides in the treatment of diseases.
    Type: Grant
    Filed: February 5, 1997
    Date of Patent: December 15, 1998
    Assignee: ICN Pharmaceuticals, Inc.
    Inventors: Zbigniew Pietrzkowski, Dariusz Cieslak, Gordana Olbina
  • Patent number: 5798250
    Abstract: Methods and compositions are provided for infecting cells with virus. Specific embodiments involved stressing the cellular membranes with chemical, electrical or mechanical means, such as by incubating the cells in DOTAP or Transfectam.TM.. Other embodiments involve impregnating carriers with virus for use in research a suitable carrier such as a polymer or nanoparticle.
    Type: Grant
    Filed: April 15, 1996
    Date of Patent: August 25, 1998
    Assignee: ICN Pharmaceuticals, Inc.
    Inventor: Fusun Zeytinoglu
  • Patent number: 5783832
    Abstract: A packaging system for the transportation and storage of materials, including radioactive and other hazardous materials. The system comprises a primary container removably received within a secondary container, and the secondary container being removably received within a tertiary container. The primary container can be centrifuged to minimize unrecoverable material, and in especially radioactive materials, the primary container is the only component that must be considered as radioactive waste.
    Type: Grant
    Filed: March 24, 1997
    Date of Patent: July 21, 1998
    Assignee: ICN Pharmaceuticals, Inc.
    Inventor: Joseph Sandor
  • Patent number: 5767097
    Abstract: Ribavirin is administered to a patient in a dosage range which is effective to modulate lymphokine expression in activated T cells. In particular, ribavirin is used to suppress Th2-mediated T cell responses and promote Th1-mediated T cell response. Thus, instead of administering ribavirin in its well-recognized role as an anti-viral agent, ribavirin is herein used in the treatment of imbalances in lymphokine expression. Such imbalances may be found to be concomitants of allergic atopic disorders such as allergic asthma and atopic dermatitis, helminth infection and leishmaniasis, and various primary and secondary immunodeficiencies, which may or may not also be associated with viral infection.
    Type: Grant
    Filed: January 23, 1996
    Date of Patent: June 16, 1998
    Assignee: ICN Pharmaceuticals, Inc.
    Inventor: Robert C. Tam
  • Patent number: 4432975
    Abstract: A process for introducing vitamin B-12 into the bloodstream is disclosed by which vitamin B-12 is absorbed sublingually. The vitamin B-12 is in the form of a micro-lozenge which contains cyanocobalamin or hydroxocobalamin and which is capable of being dissolved in approximately four minutes or less.
    Type: Grant
    Filed: October 19, 1981
    Date of Patent: February 21, 1984
    Assignee: ICN Pharmaceuticals, Inc.
    Inventor: Alfred F. Libby
  • Patent number: 4328336
    Abstract: Certain 9-(.beta.-D-Ribofuranosyl)purine-6-carboxamide and other related compounds are prepared and are useful as antiviral agents.
    Type: Grant
    Filed: August 26, 1980
    Date of Patent: May 4, 1982
    Assignee: ICN Pharmaceuticals, Inc.
    Inventors: Roland K. Robins, Robert J. Rousseau
  • Patent number: 4138547
    Abstract: 1-.beta.-D-Ribofuranosyl-1,2,4-triazole-3-carboxamide is prepared by a process wherein a suitably substituted formimidic acid hydrazide is condensed with a blocked derivative of D-ribose and the intermediate is ring closed with a reagent which donates one carbon atom to yield a 3-substituted-1-(blocked .beta.-D-ribofuranosyl)-1,2,4-triazole. Treatment of this intermediate with ammonia and/or removal of the blocking group yields the product.
    Type: Grant
    Filed: December 22, 1977
    Date of Patent: February 6, 1979
    Assignee: ICN Pharmaceuticals, Inc.
    Inventors: Leon F. Christensen, Joseph T. Witkowski
  • Patent number: 4093624
    Abstract: Compounds of the structure ##STR1## wherein Y is O, NH or NAc; X is H, .beta.-D-ribofuranosyl or 2,3,5-tri-O-Ac-.beta.-D-ribofuranosyl and Ac is acetyl; are useful as antimicrobal agent.
    Type: Grant
    Filed: January 31, 1977
    Date of Patent: June 6, 1978
    Assignee: ICN Pharmaceuticals, Inc.
    Inventors: Ganapathi R. Revankar, Roland K. Robins
  • Patent number: 4093714
    Abstract: 9-.beta.-D-Arabinofuranosyl nucleotides of the following structure are disclosed: ##STR1## wherein AP is a 3' or 5' phosphorylated arabinofuranoside or the corresponding 3', 5' cyclic phosphate joined by a glycoside linkage to N.sup.9 of the aglycon component of said nucleotide, and Z is H, C.sub.1 -C.sub.6 alkyl, C.sub.7 -C.sub.10 aralkoxy, or hydroxy.Compounds prepared according to the invention exhibit antiviral activity in vitro, while others are precursors useful in the synthesis of bioactive compounds.
    Type: Grant
    Filed: March 15, 1974
    Date of Patent: June 6, 1978
    Assignee: ICN Pharmaceuticals, Inc.
    Inventors: Richard L. Tolman, Robert W. Sidwell, Ganapathi R. Revankar
  • Patent number: 4093617
    Abstract: 3,5,7-Trisubstituted pyrazolo[1,5-a]pyrimidines are disclosed of the general formula ##STR1## wherein R.sub.1 is CF.sub.3 or C.sub.1 -C.sub.9 alkyl; R.sub.2 is CF.sub.3 or C.sub.1 -C.sub.9 alkyl; and R.sub.3 is halogen. Such compounds are useful as inhibitors of 3',5'-cyclic AMP phosphodiesterase enzyme.
    Type: Grant
    Filed: January 28, 1976
    Date of Patent: June 6, 1978
    Assignee: ICN Pharmaceuticals, Inc.
    Inventors: Roland K. Robins, Darrell E. O'Brien, Thomas Novinson
  • Patent number: 4058659
    Abstract: Compounds of formula ##STR1## wherein X is --NR.sub.1 R.sub.2, --Cl, --Br or SR; Y is --X, --OH or --NH.sub.2 ; Z is hydrogen or --NH.sub.2 ; and R' is hydrogen or C.sub.1 -C.sub.18 acyl; R being hydrogen, aryl, aralkyl, substituted aryl, substituted aralkyl, or C.sub.1 -C.sub.7 alkyl; and R.sub.1 and R.sub.2 being independently selected from the group consisting of hydrogen, phenyl, C.sub.7 -C.sub.10 aralkyl, C.sub.1 -C.sub.7 alkyl, C.sub.1 -C.sub.10 branched chain alkyl, C.sub.1 -C.sub.7 unsaturated alkyl or lower alkyl joined to form a 5 or 6-membered heterocyclic ring, with the proviso that when one of R.sub.1 and R.sub.2 are hydrogen, the other is not. The compounds variously exhibit phosphodiesterase inhibition, protein kinase activation, positive inotropic effects, adenyl cyclase inhibition and other biological activities.
    Type: Grant
    Filed: September 29, 1975
    Date of Patent: November 15, 1977
    Assignee: ICN Pharmaceuticals, Inc.
    Inventors: Roland K. Robins, Dennis A. Shuman, Kay H. Boswell
  • Patent number: 4056674
    Abstract: Ribofuranosyl derivatives of 3-deazaguanine including the 5'-phosphate, 3',5'-cyclic phosphate and 5'-deoxy, useful as antiviral agents and antibacterial agents, are disclosed.
    Type: Grant
    Filed: June 5, 1975
    Date of Patent: November 1, 1977
    Assignee: ICN Pharmaceuticals, Inc.
    Inventors: Roland K. Robins, Robert J. Rousseau, Abdul M. Mian
  • Patent number: 4038480
    Abstract: N.sup.6 -Carbamoyl and -carbonyl analogs of adenosine 3',5'-cyclic phosphate (cAMP) are prepared and variously demonstrated to exhibit kinase, adrenal steroidogenisis and lipolysis activation superior to cAMP, inhibit phosphodiesterase, and found to increase cardiac output or, in particular cases, to lower blood pressure.
    Type: Grant
    Filed: September 17, 1973
    Date of Patent: July 26, 1977
    Assignee: ICN Pharmaceuticals, Inc.
    Inventors: Roland K. Robins, Dennis A. Shuman, Kay H. Boswell
  • Patent number: 4021556
    Abstract: Compounds of the following structure are disclosed which are effective inhibitors of the enzyme xanthine oxidase: ##STR1## R is an aromatic or substituted aromatic nucleus such as phenyl, R.sub.1 is H, an alkali metal or ammonium, and R.sub.2 is H or OR.sub.1.
    Type: Grant
    Filed: November 17, 1975
    Date of Patent: May 3, 1977
    Assignee: ICN Pharmaceuticals, Inc.
    Inventors: Robert H. Springer, Darrell E. O'Brien, Lionel N. Simon
  • Patent number: 3991078
    Abstract: Antiviral 1-(G)-1,2,4-triazole carboxamides, thiocarboxamides and carboxamidines wherein G is an acid labile hydrocarbon moiety, e.g., 1-(.alpha.-alkoxyalkyl), are prepared by, e.g., the acid-catalyzed addition reaction of appropriately substituted 1,2,4-triazole and an .alpha.,.beta.-unsaturated ether.
    Type: Grant
    Filed: March 18, 1974
    Date of Patent: November 9, 1976
    Assignee: ICN Pharmaceuticals, Inc.
    Inventors: Joseph T. Witkowski, Roland K. Robins
  • Patent number: 3984396
    Abstract: Phosphate and carboxylic acid esters of 1-(.beta.-D-ribofuranosyl)-1,2,4-triazoles are prepared by a variety of methods and their antiviral activity reported.
    Type: Grant
    Filed: March 18, 1974
    Date of Patent: October 5, 1976
    Assignee: ICN Pharmaceuticals, Inc.
    Inventors: Joseph T. Witkowski, Roland K. Robins
  • Patent number: 3976545
    Abstract: The use of 1,2,4-triazole-3-carboxamide and 1,2,4-triazole-3-thiocarboxamide and physiologically compatible salts thereof as antiviral agents is disclosed. A process for synthesizing 1-.beta.-D-ribofuranosyl-1,2,4-triazole-3-carboxamide is also disclosed.
    Type: Grant
    Filed: September 29, 1975
    Date of Patent: August 24, 1976
    Assignee: ICN Pharmaceuticals, Inc.
    Inventors: Joseph T. Witkowski, Roland K. Robins
  • Patent number: 3968103
    Abstract: Novel substituted 1,2,3-triazole nucleosides such as 4-R'-2-.beta.-D-ribofuranosyl-1,2,3-triazole wherein R' is a nitro, carboxylic acid ester, cyano, carboxamide or thiocarboxamide group are prepared by a procedure entailing fusion of an appropriately substituted 1,2,3-triazole with a tetra-0-acyl blocked ribofuranose. The resulting compounds exhibit significant antimicrobial activity in in vitro testing or are useful in preparing compounds which exhibit such activity.
    Type: Grant
    Filed: September 28, 1972
    Date of Patent: July 6, 1976
    Assignee: ICN Pharmaceuticals, Inc.
    Inventors: Roland K. Robins, Joseph T. Witkowski
  • Patent number: 3968101
    Abstract: Novel compounds of the general formula ##SPC1##Wherein X is H or NH.sub.2 ; R' is C.sub.1 to C.sub.8 alkyl, C.sub.1 to C.sub.8 substituted alkyl, benzyl, C.sub.1 to C.sub.8 acyl, benzoyl, carbamoyl, are disclosed as well as a novel free radial alkylation and acylation process for making such compounds. The compounds of the invention display activity comparable to or superior to their naturally occurring analogue while resisting phosphodiesterase degradation. In some cases the compounds of this invention actually inhibit enzymatic degradation of the natural analogue.
    Type: Grant
    Filed: December 20, 1974
    Date of Patent: July 6, 1976
    Assignee: ICN Pharmaceuticals, Inc.
    Inventors: Leon F. Christensen, Roland K. Robins
  • Patent number: 3948885
    Abstract: A 5-hydroxy-1,2,3-triazole-4-carboxamide nucleoside, related to the C-nucleoside pyrazomycin, is facilely synthesized by condensation of acyl-blocked ribofuranose with trimethylsilylated 5-hydroxy-1,2,3-triazole-4-carboxamide or, alternatively, by cycloaddition of suitably blocked .beta.-D-ribofuranosyl azide and the anion of ethyl malonamate, and demonstrated to exhibit antiviral properties. The triazole precursor of the former route, as well as certain of its novel salts, are also disclosed as potential antiviral agents.
    Type: Grant
    Filed: March 19, 1973
    Date of Patent: April 6, 1976
    Assignee: ICN Pharmaceuticals, Inc.
    Inventors: Joseph T. Witkowski, Roland K. Robins, Frank A. Lehmkuhl