Patents by Inventor Ronald Hilson Begg Galt

Ronald Hilson Begg Galt 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).

  • 1'-Substituted-thioxanthene-9-spiro-4'-piperidine derivatives and the 10-oxides and 10,10-dioxides thereof
    Patent number: 4001418
    Abstract: The disclosure relates to thioxanthene derivatives which possess analgesic activity, to processes for the manufacture of said derivatives and to pharmaceutical compositions containing them. Typical of the thioxanthene derivatives disclosed is 4-acetoxy-6-chloro-1'-methylthioxanthene-9-spiro-4'-piperidine.
    Type: Grant
    Filed: January 9, 1975
    Date of Patent: January 4, 1977
    Assignee: Imperial Chemical Industries Limited
    Inventors: Ronald Hilson Begg Galt, Edwin Harry Paterson Young
  • 1'-Substituted xanthene-9-spiro-4'-piperidine derivatives
    Patent number: 4001419
    Abstract: The disclosure relates to xanthene derivatives which possess analgesic activity, to processes for the manufacture of said derivatives and to pharmaceutical compositions containing them. Typical of the xanthene derivatives disclosed is 6-chloro-4-hydroxy-1'-methylxanthene-9-spiro-4'-piperidine.
    Type: Grant
    Filed: January 9, 1975
    Date of Patent: January 4, 1977
    Assignee: Imperial Chemical Industries Limited
    Inventors: Ronald Hilson Begg Galt, Robert James Pearce
  • 1'-Substituted-9,10-dihydroanthracene-9-spiro-4'-piperidine derivatives
    Patent number: 3979513
    Abstract: The disclosure relates to dihydroanthracene derivatives which possess analgesic activity, to processes for their manufacture and to compositions containing them. Typical of the dihydroanthracene derivatives disclosed is 6-chloro-4-hydroxy-1'-methyl-9,10-dihydroanthracene-9-spiro-4'-piperidine.
    Type: Grant
    Filed: January 16, 1975
    Date of Patent: September 7, 1976
    Assignee: Imperial Chemical Industries Limited
    Inventors: Ronald Hilson Begg Galt, Alasdair Thomas Glen