Patents by Inventor Jose M. Ribalta Baro

Jose M. Ribalta Baro has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • Benzothiazine derivatives and their applications as medicinal products or as synthesis intermediates for medicinal products
    Patent number: 5132304
    Abstract: The invention relates to the compounds corresponding to the general formula I ##STR1## in which: R.sup.1 represents a lower alkyl radical (having one to four carbon atoms), a phenyl radical or a benzyl radical. These compounds are useful as medicinal products or as synthesis intermediates for medicinal products.
    Type: Grant
    Filed: July 31, 1990
    Date of Patent: July 21, 1992
    Assignee: Laboratorios Del Dr. Esteve, S. A.
    Inventors: Jose M. Ribalta-Baro, Jordi F. Rigola-Constansa
  • Process for obtaining 4-hydroxy-2-methyl-N-(2-pyridyl)-2H-1,2-benzothiazine-3-carboxamide 1,1-dioxide
    Patent number: 4797483
    Abstract: A process for obtaining 4-hydroxy-2-methyl-N-(2-pyridyl)-2H-1,2-benzothiazine-3-carboxamide 1,1-dioxide, which may be used as a non-steroidal analgesic and anti-inflammatory drug. The process comprises reacting saccharin sodium with isopropyl chloroacetate in dimethylformamide, reacting the resultant isopropyl 3-oxo-1,2-benzoisothiazoline-2-acetate 1,1-dioxide with sodium isopropylate in isopropanol to produce an intermediate which, when methylated in an aqueous-alcoholic basic medium with dimethyl sulfate, gives an intermediate compound which when condensed with 2-aminopyridine in xylene, yields 4-hydroxy-2-methyl-N-(2-pyridyl)-2H-1,2-benzothiazone-3-carboxamide 1,1-dioxide.
    Type: Grant
    Filed: June 24, 1987
    Date of Patent: January 10, 1989
    Assignee: Induspol, S.A.
    Inventors: Jordi Frigola Constansa, Jose M. Ribalta Baro, Julio Campon Pardo