Patents by Inventor David William Hawkins

David William Hawkins 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: 7514561
    Abstract: Substituted-acylaminopyrazole derivatives of formula (I): or salts thereof, wherein the various symbols are as defined in the description, processes for their preparation, compositions thereof and methods for their use for the control of pests, such as arthropods (e.g. insects and arachnids) and helminths (including nematodes).
    Type: Grant
    Filed: November 12, 2003
    Date of Patent: April 7, 2009
    Assignee: Merial Limited
    Inventors: Stefan Schnatterer, David William Hawkins, Daniela Jans, Michael Maier, Anke Kuhlmann, Erich Friedrich Sanwald, Maria-Theresia Thönessen, Karl Seeger
  • Patent number: 7504362
    Abstract: 5-Substituted-sulfonylaminopyrazole derivatives of formula (I): or salts thereof, wherein the various symbols are as defined in the description, and pesticidal compositions thereof, processes for their preparation, and methods for their use for the control of arthropods (including insects and arachnids) and helminths (including nematodes).
    Type: Grant
    Filed: November 12, 2003
    Date of Patent: March 17, 2009
    Assignee: Merial Limited
    Inventors: Uwe Döller, David Teh-Wei Chou, Merwyn Steinsberger, Michael Maier, Anke Kuhlmann, Karl Seeger, David William Hawkins, Stanley Thomas Derek Gough, David Treadway Manning
  • Patent number: 6372774
    Abstract: N-Phenylpyrazole derivatives of the formula: wherein R1 represents optionally halogenated alkyl; R2 represents halogen, cyano, nitro, cycloalkyl, alkenyl, thiocyanato, optionally alkyl substituted sulphamoyl, optionally alkyl substituted carbamoyl, alkoxycarbonyl, alkanoyl or optionally halogenated alkyl; and R3 represents a hydrogen atom or a group N″R′″ or a variety of other groupings. These compounds possess arthropodicidal, plant nematocidal, anthelmintic and anti-protozoal properties; their preparation, compositions containing them and their use are described.
    Type: Grant
    Filed: July 16, 1999
    Date of Patent: April 16, 2002
    Assignee: Rhone-Poulenc Agriculture Ltd.
    Inventors: Leslie Roy Hatton, Ian George Buntain, David William Hawkins, Edgar William Parnell, Christopher John Pearson, David Alan Roberts
  • Patent number: 6369270
    Abstract: Compound of the formula are useful as intermediates to new 4-benzoylisoxazoles.
    Type: Grant
    Filed: October 19, 1999
    Date of Patent: April 9, 2002
    Assignee: Rhone Poulenc Agriculture Limited
    Inventors: Angela Jacqueline Bailey, Michael Gingell, David William Hawkins
  • Publication number: 20020016468
    Abstract: The invention relates to 1-arylpyrazole-3-thiocarboxamide derivatives of formula (I): 1
    Type: Application
    Filed: June 24, 1999
    Publication date: February 7, 2002
    Applicant: Rhone-Poulenc Agrochimie
    Inventors: DAVID TREADWAY MANNING, MICHAEL PILATO, TAI-TEH WU, DAVID WILLIAM HAWKINS
  • Patent number: 6140528
    Abstract: The invention relates to intermediates to herbicidal compounds of formulae (Ia), (Ib) or (Ic): ##STR1##
    Type: Grant
    Filed: November 22, 1999
    Date of Patent: October 31, 2000
    Assignee: Rhone-Poulenc Agriculture Ltd
    Inventor: David William Hawkins
  • Patent number: 6133432
    Abstract: A process for preparing a compound of the formula ##STR1## wherein R is C.sub.1 -C.sub.18 alkyl by reacting a compound of the formulaRO.sub.2 C--CH.sub.2 CN (II)with a cyanide salt and formaldehyde or source thereof. Compounds of formula (I) are useful intermediates to pesticidally active compounds.
    Type: Grant
    Filed: December 1, 1998
    Date of Patent: October 17, 2000
    Assignee: Rhone-Poulenc Agro
    Inventors: David William Hawkins, David Alan Roberts, John Harry Wilkinson, Jean-Louis Clavel
  • Patent number: 6114538
    Abstract: Compounds of the formula are useful as intermediates to new herbicidal 4-benzoylisoxazoles.
    Type: Grant
    Filed: October 19, 1999
    Date of Patent: September 5, 2000
    Assignee: Rhone Poulenc Agriculture Limited
    Inventors: Angela Jacqueline Bailey, Michael Gingell, David William Hawkins
  • Patent number: 6013805
    Abstract: The invention relates to intermediates to herbicidal compounds of formulae (Ia), (Ib) or (Ic): ##STR1##
    Type: Grant
    Filed: September 29, 1998
    Date of Patent: January 11, 2000
    Assignee: Rhone-Poulenc Agriculture Ltd
    Inventor: David William Hawkins
  • Patent number: 5998653
    Abstract: Compounds of the formula ##STR1## are useful as intermediates to new herbicidal 4-benzoylisoxazoles.
    Type: Grant
    Filed: May 19, 1997
    Date of Patent: December 7, 1999
    Assignee: Rhone Poulenc Agriculture Limited
    Inventors: Angela Jacqueline Bailey, Michael Gingell, David William Hawkins
  • Patent number: 5916618
    Abstract: N-Phenylpyrazole derivatives of the formula: ##STR1## wherein R.sup.1 represents cyano, nitro, halogen, acetyl or formyl; R.sup.2 represents R.sup.5 SO.sub.2, R.sup.5 SO or R.sup.5 S in which R.sup.5 is optionally halogen substituted alkyl, alkenyl or alkynyl;R.sup.3 represents a hydrogen atom or a group NR.sup.6 R.sup.7 wherein R.sup.6 and R.sup.7 each represent hydrogen, alkyl, alkenylalkyl, alkynylalkyl, formyl, optionally halogen substituted alkanoyl, optionally halogen substituted alkoxycarbonyl, or alkoxymethyleneamino, halogen, or R.sup.6 and R.sup.7 together form a cyclic imide and R.sup.4 represents a substituted phenyl group possess arthropodicidal, plant nematocidal, anthelmintic and anti-protozoal properties; their preparation, compositions containing them and their use are described.
    Type: Grant
    Filed: October 7, 1997
    Date of Patent: June 29, 1999
    Assignee: Rhone-Poulenc Agriculture Ltd.
    Inventors: Leslie Roy Hatton, Ian George Buntain, David William Hawkins, Edgar William Parnell, Christopher John Pearson, David Alan Roberts
  • Patent number: 5849928
    Abstract: The invention relates to compounds of formulae (Ia), (Ib) or (Ic): ##STR1## and to their use as herbicides.
    Type: Grant
    Filed: March 21, 1997
    Date of Patent: December 15, 1998
    Assignee: Rhone-Poulenc Agriculture Limited
    Inventor: David William Hawkins
  • Patent number: 5714191
    Abstract: N-Phenylpyrazole derivatives of the formula: ##STR1## wherein R.sup.1 represents cyano, nitro, halogen, acetyl or formyl; R.sup.2 represents R.sup.5 SO.sub.2, R.sup.5 SO or R.sup.5 S in which R.sup.5 is optionally halogen substituted alkyl, alkenyl or alkynyl;R.sup.3 represents a hydrogen atom or a group NR.sup.6 R.sup.7 wherein R.sup.6 and R.sup.7 each represent hydrogen, alkyl, alkenylalkyl, alkynylalkyl, formyl, optionally halogen substituted alkanoyl, optionally halogen substituted alkoxycarbonyl, or alkoxymethyleneamino, halogen, or R.sup.6 and R.sup.7 together form a cyclic imide and R.sup.4 represents a substituted phenyl group possess arthropodicidal, plant nematocidal, anthelmintic and anti-protozoal properties; their preparation, compositions containing them and their use are described.
    Type: Grant
    Filed: May 30, 1995
    Date of Patent: February 3, 1998
    Assignee: Rhone-Poulenc Agriculture Ltd.
    Inventors: Leslie Roy Hatton, Ian George Buntain, David William Hawkins, Edgar William Parnell, Christopher John Pearson, David Alan Roberts
  • Patent number: 5658858
    Abstract: The invention relates to 4-benzoylisoxazole compounds, compositions containing them, a process for preparation, and their use as herbicides.
    Type: Grant
    Filed: September 6, 1996
    Date of Patent: August 19, 1997
    Assignee: Rhone-Poulenc Argriculture Limited
    Inventors: Angela Jacqueline Bailey, Michael Gingell, David William Hawkins
  • Patent number: 4002655
    Abstract: The present invention provides new and pharmaceutically useful amides of the general formula: ##STR1## wherein X is the acyl residue of 18.alpha.- or 18.beta.-glycyrrhetinic acid, the 3-hydroxyl group of which can be acylated with a mono-, di- or polybasic inorganic or organic acid, or X is the acyl residue of 3-keto-18.alpha.- or -18.beta.-glycyrrhetinic acid; and the metoclopramide salts of those compounds containing at least one free carboxylic acid group.
    Type: Grant
    Filed: February 10, 1975
    Date of Patent: January 11, 1977
    Assignee: Biorex Laboratories Limited
    Inventor: David William Hawkins