Patents by Inventor Alasdair Thomas Glen

Alasdair Thomas Glen 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-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