Patents by Inventor William J. Watkins

William J. Watkins 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: 5410064
    Abstract: The invention concerns novel 1,3-dioxane alkenoic acid derivatives of the formula I ##STR1## wherein: n is the integer 1 or 2; Y is methyleneoxy, vinylene or ethylene;A.sup.1 is (1-6C)alkylene;R.sup.1 is a group of the formula R.sup.2.A.sup.2 -, in which:R.sup.2 is phenyl unsubstituted or bearing up to three substituents which are independently selected from (1-6C)alkyl, (1-6C)alkoxy, (2-6C)alkanoyl, (1-6C)alkylthio, (1-6C)alkylsulphonyl, halogeno, trifluoromethyl, nitro and cyano;A.sup.2 is a direct bond to R.sup.2 or a group of the formula --W--C(R.sup.4)(R.sup.5)-- wherein W is oxygen, methylene or a direct bond to R.sup.2, and R.sup.4 and R.sup.5 are independently (1-4C)alkyl;Q is a heterocyclyl group selected from thiazol-5-yl and imidazol-5-yl, the latter being unsubstituted or bearing a (1-12C)alkyl group at the 1-position of the imidazole ring; andR.sup.3 is hydroxy, a physiologically acceptable alcohol residue, or (1-4C)alkanesulphonamido;or a pharmaceutically acceptable salt thereof.
    Type: Grant
    Filed: March 24, 1993
    Date of Patent: April 25, 1995
    Assignee: Imperial Chemical Industries plc
    Inventors: Alan W. Faull, Keith Russell, William J. Watkins
  • Patent number: 5219874
    Abstract: The invention concerns novel 1,3-dioxane alkenoic acid derivatives of the formula I ##STR1## wherein: n is the integer 1 or 2;Y is methyleneoxy, vinylene or ethylene;A.sup.1 is (1-6C)alkylene;R.sup.1 is a group of the formula R.sup.2.A.sup.2 --, in which:R.sup.2 is phenyl unsubstituted or bearing up to three substituents which are independently selected from (1-6C)alkyl, (1-6C)alkoxy, (2-6C)alkanoyl, (1-6C)alkylthio, (1-6C)alkylsulphonyl, halogeno, trifluoromethyl, nitro and cyano;A.sup.2 is a direct bond to R.sup.2 or a group of the formula --W--C(R.sup.4)(R.sup.5)-- wherein W is oxygen, methylene or a direct bond to R.sup.2, and R.sup.4 and R.sup.5 are independently (1-4C)alkyl;Q is a heterocyclyl group selected from thiazol-5-yl and imidazol-5-yl, the latter being unsubstituted or bearing a (1-12C)alkyl group at the 1-position of the imidazole ring; andR.sup.3 is hydroxy, a physiologically acceptable alcohol residue, or (1-4C)alkanesulphonamido;or a pharmaceutically acceptable salt thereof.
    Type: Grant
    Filed: September 20, 1991
    Date of Patent: June 15, 1993
    Assignee: Imperial Chemical Industries PLC
    Inventors: Alan W. Faull, Keith Russell, Williams J. Watkins
  • Patent number: 5214165
    Abstract: 6-Fluoroshikimic acid derivatives of the formula (I): ##STR1## wherein R.sup.1 is hydroxy or a moiety biotransformable thereto and R.sup.2 is hydrogen or --P(O)(OH).sub.2 have antibacterial, antifungal and herbicidal activity. Their preparation and use are described as are pharmaceutical compositions containing them.
    Type: Grant
    Filed: August 24, 1992
    Date of Patent: May 25, 1993
    Assignee: Imperial Chemical Industries PLC
    Inventors: James K. Sutherland, William J. Watkins, George A. Snow, Gareth M. Davies
  • Patent number: 5164382
    Abstract: 6-Fluoroshikimic acid derivatives of the formula (I): ##STR1## wherein R.sup.1 is hydroxy or a moiety biotransformable thereto and R.sup.2 is hydrogen or --P(O)(OH).sub.2 have antibacterial, antifungal, and herbicidal activity. Their preparation and use are described as are pharmaceutical compositions containing them.
    Type: Grant
    Filed: April 17, 1990
    Date of Patent: November 17, 1992
    Assignee: Imperial Chemical Industries plc
    Inventors: James K. Sutherland, William J. Watkins, George A. Snow, Gareth M. Davies
  • Patent number: 4947072
    Abstract: A three phase two-pole induction motor includes a three phase winding wound as a two-pole winding with an effective full pitch wound winding connected in a double delta connection. Each pole group includes a plurality of coils wound as a concentric winding or as a short pitch lap wound equivalent winding. A 36 slot stator is illustrated and includes each phase winding wound with 2 coil units each having 2 coil groups. Each coil group has 3 concentric coils and in the illustrated concentric winding the one phase winding has one group with coil sides in slots 1-3 and 16-18 and the second group in slots 19-21 and 34-36. The next phase winding has similar coils in slots 4-6 and 25-27 and in slots 7-9 and 22-24. The third phase winding has similar coils in slots 10-12 and 31-33 and in slots 13-15 and 29-30. The coil sides of each of the two groups are connected to form a full pitch winding.
    Type: Grant
    Filed: October 21, 1988
    Date of Patent: August 7, 1990
    Assignee: A.O. Smith Corporation
    Inventors: William J. Watkins, Randal A. Oyster