Patents by Inventor Brian G. McDonald

Brian G. McDonald 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).

  • Growth promotors for ruminants
    Patent number: 4333952
    Abstract: Compounds of formula (I): ##STR1## wherein: R.sup.1 is hydrogen, halogen or C.sub.1-4 alkoxy;X is oxygen; NR.sup.3 in which R.sup.3 is hydrogen, C.sub.1-4 alkyl, or -Y-R.sup.2 ; --C.dbd.O; or --CHOH;Y is --CH.sub.2 --CHOH, and when X is --C.dbd.O it may also be --CH.dbd.CH--; andR.sup.2 is C.sub.1-4 alkyl, one carbon atom of which is di- or tri-halogenated;or salts thereof, are useful in promoting growth of ruminants. Processes for their production, veterinary formulations and treatments are described.
    Type: Grant
    Filed: June 30, 1980
    Date of Patent: June 8, 1982
    Assignee: Beecham Group Limited
    Inventor: Brian G. McDonald
  • Heterocyclic and aliphatic growth promotors
    Patent number: 4321271
    Abstract: Compounds of formula (I) ##STR1## wherein: R.sup.1 is C.sub.1-6 alkyl or C.sub.5-7 cycloalkyl;R.sup.2 is hydrogen or C.sub.1-6 alkyl; orNR.sup.1 R.sup.2 represents a heterocyclic ring having 5 to 7 ring atoms and only one hetero-atom; andR.sup.3 is C.sub.1-4 alkyl, one carbon atom of which is di- or tri-halogenatedor salts thereof are useful in promoting growth of ruminants. Processes for their production, veterinary formulations and treatments are described.
    Type: Grant
    Filed: June 30, 1980
    Date of Patent: March 23, 1982
    Assignee: Beecham Group Limited
    Inventor: Brian G. McDonald