Patents by Inventor David Conwil Jenkins

David Conwil Jenkins 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: 4071528
    Abstract: Benzene derivatives of the formula: ##STR1## wherein R.sup.1 is alkyl, R.sup.2 is a group --SR.sup.3, --SOR.sup.3, --SO.sub.2 R.sup.3 or --OR.sup.3, in which R.sup.3 is alkyl, cycloalkyl, alkenyl, alkynyl, aralkyl, aryl or cycloalkylalkyl, whose position on the benzene ring is either para to --NHCOAZ or para to the heterocyclo group, A is a C.sub.1-4 aliphatic hydrocarbon radical, B is a bivalent methylene or ethylene group, and Z is a primary, secondary or tertiary amino group, and acid addition salts and quaternary ammonium derivatives thereof, are new compounds useful as anthelmintics and antifungal agents.
    Type: Grant
    Filed: October 27, 1976
    Date of Patent: January 31, 1978
    Assignee: May & Baker Limited
    Inventors: Sally Elizabeth Dalton, William George Gingell, David Conwil Jenkins, Leslie George King, Glyn Evan Lee, Garth Molesdale Thompson
  • Patent number: 4048326
    Abstract: Benzene derivative of the formula: ##STR1## wherein R and R.sup.1 each represent an aliphatic hydrocarbon group optionally substituted by halogen or alkoxy, R.sup.2 and R.sup.3 each represent hydrogen or methyl, and R.sup.4 represents hydrogen, halogen, alkyl, alkanoylamino optionally substituted by cycloalkyl of 3 to 6 carbon atoms, alkoxycarbonylamino, alkanoyl, benzyl or N-methylmethanesulphonylamino, possess anthelmintic and anti-viral activity. New compounds within that formula also possess fungicidal properties.
    Type: Grant
    Filed: June 15, 1971
    Date of Patent: September 13, 1977
    Assignee: May & Baker Limited
    Inventors: Samuel Sidney Berg, David Conwil Jenkins, Ronald Frederick Phillipson
  • Patent number: 4034107
    Abstract: Benzene derivatives of the formula: ##STR1## wherein R.sup.1 represents alkyl, R.sup.2 represents a group --SR.sup.3, --SOR.sup.3, --SO.sub.2 R.sup.3, --OR.sup.3, --SCONH.sub.2, --SCN or --T(CH.sub.2).sub.m T.sup.1 R.sup.4 [wherein R.sup.3 represeents alkyl, cycloalkyl, alkenyl, alkynyl, aralkyl, unsubstituted or substituted aryl, or cycloalkylalkyl, R.sup.4 represents hydrogen or alkyl, T and T.sup.1 each represent oxygen, sulphur or sulphinyl, and m is an integer from 1 to 7] whose position on the benzene ring is either para to the group --NHCSNHCOOR.sup.1 or para to the group --NHCOAZ, A represents a bivalent straight-chain aliphatic hydrocarbon radical of 1 to 4 carbon atoms or a said hydrocarbon radical substituted by at least one methyl group, and Z represents a group of the formula:- ##STR2## wherein R.sup.5 represents hydrogen or alkyl, R.sup.6 represents hydrogen, alkyl or phenylalkyl, and R.sup.7 represents hydrogen or alkyl, or R.sup.6 and R.sup.
    Type: Grant
    Filed: November 4, 1975
    Date of Patent: July 5, 1977
    Assignee: May and Baker Limited
    Inventors: Leslie George King, Glyn Evan Lee, George Christopher James Martin, David Conwil Jenkins
  • Patent number: 4005217
    Abstract: Benzene derivatives of the formula:- ##STR1## wherein R is an aliphatic hydrocarbon group of 1 to 4 carbon atoms optionally substituted by halogen or alkoxy, R.sup.1 is hydrogen or methyl, R.sup.2 is hydrogen, halogen, alkyl, alkanoylamino optionally substituted by cycloalkyl of 3 to 6 carbon atoms, alkoxycarbonylamino, alkanoyl, benzoyl or N-methylmethanesulphonylamino, and Y is primary amino or substituted amino, possess anthelmintic and anti-viral activity. New compounds within that formula possess fungicidal properties.
    Type: Grant
    Filed: June 15, 1971
    Date of Patent: January 25, 1977
    Assignee: May & Baker Limited
    Inventors: Samuel Sidney Berg, David Conwil Jenkins, George Christopher James Martin, Ronald Frederick Phillipson, Garth Molesdale Thompson