Patents Represented by Attorney James Nelson
  • Patent number: 5441734
    Abstract: The present invention provides for crystalline zinc-interferon alfa-2 (IFN .alpha.-2) having a monoclinic morphology. The present invention further provides for crystalline cobalt-IFN .alpha.-2, crystalline calcium-IFN .alpha.-2, and crystalline IFN .alpha.-2 having a serum half-life of at least about 12 hours when injected into a primate. The present invention further provides for a method for producing a crystalline IFN .alpha.-2 comprising forming a soluble metal-IFN .alpha.-2 complex, and equilibrating the soluble metal-IFN .alpha.-2 complex in solution with an acetate salt of the metal under conditions that will cause the metal-IFN .alpha.-2 solution to become supersaturated and form crystalline metal-IFN .alpha.-2. The present invention also includes crystalline metal-alfa interferon having monoclinic, plate and needle morphologies.
    Type: Grant
    Filed: February 25, 1993
    Date of Patent: August 15, 1995
    Assignee: Schering Corporation
    Inventors: Paul Reichert, Charles McNemar, Nagamani Nagabhushan, Tattanahalli L. Nagabhushan, Stephen Tindall, Alan Hruza
  • Patent number: 5188827
    Abstract: A method for lowering the blood-serum cholesterol levels in mammals by administering IL-4 is disclosed as well as the use of IL-4 for the manufacture of a medicament for use in lowering blood-serum cholesterol levels.
    Type: Grant
    Filed: June 10, 1991
    Date of Patent: February 23, 1993
    Assignee: Schering Corporation
    Inventor: Hugh E. Black
  • Patent number: 5061710
    Abstract: Novel mercapto-acylamino acids useful in the treatment of hypertension and combinations of mercapto-acylamino acids and atrial natriuretic factors or angiotensin converting enzyme inhibitors useful for treating hypertension are disclosed.
    Type: Grant
    Filed: December 16, 1987
    Date of Patent: October 29, 1991
    Assignee: Schering Corporation
    Inventors: Martin F. Haslanger, Bernard R. Neustadt, Elizabeth M. Smith
  • Patent number: 5035898
    Abstract: Pharmacuetical compositions for administering a combination of controlled release potassium chloride and immediately-released magnesium salt are disclosed.
    Type: Grant
    Filed: November 27, 1987
    Date of Patent: July 30, 1991
    Assignee: Schering Corporation
    Inventors: Richard R. Chang, Edward M. Rudnic
  • Patent number: 5021457
    Abstract: Individuals are aided in smoking cessation by administering internally phenylpropanolamine.
    Type: Grant
    Filed: August 9, 1989
    Date of Patent: June 4, 1991
    Assignee: Plough Inc.
    Inventors: Frank J. Akin, Robert Klesges, Lisa Klesges
  • Patent number: 4863743
    Abstract: A controlled release potassium chloride tablet is disclosed which is comprised of potassium chloride crystals having a mesh size of about 30 to about 50 mesh which are coated with a coating material comprised of ethylcellulose and hydroxypropylcellulose. The coated crystals form micro pellets which then can be compressed into tablets. The tablets disintegrate rapidly in an aqueous environment thus assuring a more uniform dissolution of the active component as compared with other types of controlled release potassium chloride dosage formulations. The distribution of the potassium chloride micro pellets over a wide surface area in the gastrointestinal mucosa aids in reducing the risk of gastrointestinal lesions. The formation of the coated micro pellets which disperse quickly upon contact with aqueous environment allow for the repeated chronic oral administration of a relatively large dose of potassium chloride (20 mEq).
    Type: Grant
    Filed: February 19, 1986
    Date of Patent: September 5, 1989
    Assignee: Key Pharmaceuticals, Inc.
    Inventors: Charles Hsiao, Chi T. Chou
  • Patent number: 4351948
    Abstract: Compounds corresponding to the following general formula: ##STR1## wherein Ar and Ar.sup.1, which may be the same or different, each represents an aromatic radical which may be substituted one or more times by halogen and/or nitro and/or lower alkyl and/or trihalomethyl and/or cyano and/or lower alkoxy and/or di-lower alkyl-amino, the alkyl groups optionally completing a ring optionally incorporating a further heteroatom, and/or lower alkyl sulphonyl;Alk.sup.1 and Alk.sup.2, which may be the same or different, each represents an alkylene group containing from one to eight carbon atoms which may be substituted one or more times by aryl and/or cycloalkyl and/or lower alkyl and if two such alkyl groups are present, they may complete a ring optionally containing a heteroatom and in which imidazole ring may be further substituted; and m represents 0 or 1; provided that not both Ar and Ar.sup.1 represent phenyl; and acid addition salts thereof.
    Type: Grant
    Filed: January 16, 1981
    Date of Patent: September 28, 1982
    Assignee: G.D. Searle & Co.
    Inventors: Peter J. Fellner, Brendan J. Hamill, Paul W. Manley
  • Patent number: 4349629
    Abstract: A plasmid having an insertion site for a eukaryotic DNA fragment adjacent to a bacterial promoter and downstream from a prokaryotic ribosome binding site and initiator codon such that the bacterial promoter controls transcription and translation of an inserted DNA fragment is disclosed.The production and use of such plasmids is also disclosed.In general terms, one aspect of the present invention relates to a series of plasmid vectors having the basic characteristic of a Hind III insertion site adjacent to a tryptophan promoter and also a gene for tetracycline resistance. The plasmid vectors are by virtue of the structure thereof ideally suited to receive at the Hind III site an inserted eukaryotic DNA fragment the transcription and translation of which is under the control of the tryptophan promotor.
    Type: Grant
    Filed: May 29, 1980
    Date of Patent: September 14, 1982
    Assignee: G.D. Searle & Co.
    Inventors: Norman H. Carey, John S. Emtage, William C. A. Tacon, Robert A. Hallewell
  • Patent number: 4348388
    Abstract: 11-Amino-11-deoxydaunorubicin and analogs represented by the formula: ##STR1## wherein: R is hydrogen, hydroxy or methoxy; R.sub.1 is hydrogen or hydroxy; and the pharmaceutically acceptable salts thereof.The compounds are useful in ameliorating tumor growth.
    Type: Grant
    Filed: April 2, 1980
    Date of Patent: September 7, 1982
    Assignee: G.D. Searle & Co.
    Inventors: Robert B. Garland, Raphael Pappo, Paul B. Sollman