Patents by Inventor William H. G. Richards

William H. G. Richards 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).

  • Patent number: 5053418
    Abstract: Novel combinations of an antiprotozoal naphthoquinone and a 4-pyridinol or an alkanoic ester thereof wherein the antiprotozoal activity of the combination is potentiated with respect to the corresponding activity of the components of the combination. The combinations are especially useful for the treatment or porphylaxis of malaria.
    Type: Grant
    Filed: December 11, 1989
    Date of Patent: October 1, 1991
    Assignee: Burroughs Wellcome Co.
    Inventors: Victoria S. Latter, Alan T. Hudson, William H. G. Richards, Anthony W. Randall
  • Patent number: 4195089
    Abstract: Pharmaceutical formulations and their preparation, suitable for use in the treatment or prophylaxis of malaria, which comprise a compound of formula (I) ##STR1## where X is hydrogen, an alkali metal, the ammonium radical, or H.(CH.sub.2).sub.n.CO- where n is 0 to 3, together with a compound of formula (II) ##STR2## where R.sup.3 is C1-C5 alkyl and R.sup.6 and R.sup.7 are the same or different and are each selected from alkyl, alkoxy, aralkoxy and di(C1-C5 alkyl) amino. Formulae (I) and (II) include pharmaceutically and pharmacologically acceptable acid addition salts of the respective compounds. Also provided is a method for the treatment of prophylaxis of malaria in a mammal comprising the administration to the mammal in combination of a compound of formula (I) and a compound of formula (II) as above defined.
    Type: Grant
    Filed: April 28, 1977
    Date of Patent: March 25, 1980
    Assignee: Burroughs Wellcome Co.
    Inventor: William H. G. Richards