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).
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Patent number: 7514561Abstract: 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: GrantFiled: November 12, 2003Date of Patent: April 7, 2009Assignee: Merial LimitedInventors: Stefan Schnatterer, David William Hawkins, Daniela Jans, Michael Maier, Anke Kuhlmann, Erich Friedrich Sanwald, Maria-Theresia Thönessen, Karl Seeger
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Patent number: 7504362Abstract: 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: GrantFiled: November 12, 2003Date of Patent: March 17, 2009Assignee: Merial LimitedInventors: Uwe Döller, David Teh-Wei Chou, Merwyn Steinsberger, Michael Maier, Anke Kuhlmann, Karl Seeger, David William Hawkins, Stanley Thomas Derek Gough, David Treadway Manning
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Patent number: 6372774Abstract: 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: GrantFiled: July 16, 1999Date of Patent: April 16, 2002Assignee: Rhone-Poulenc Agriculture Ltd.Inventors: Leslie Roy Hatton, Ian George Buntain, David William Hawkins, Edgar William Parnell, Christopher John Pearson, David Alan Roberts
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Patent number: 6369270Abstract: Compound of the formula are useful as intermediates to new 4-benzoylisoxazoles.Type: GrantFiled: October 19, 1999Date of Patent: April 9, 2002Assignee: Rhone Poulenc Agriculture LimitedInventors: Angela Jacqueline Bailey, Michael Gingell, David William Hawkins
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Publication number: 20020016468Abstract: The invention relates to 1-arylpyrazole-3-thiocarboxamide derivatives of formula (I): 1Type: ApplicationFiled: June 24, 1999Publication date: February 7, 2002Applicant: Rhone-Poulenc AgrochimieInventors: DAVID TREADWAY MANNING, MICHAEL PILATO, TAI-TEH WU, DAVID WILLIAM HAWKINS
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Patent number: 6140528Abstract: The invention relates to intermediates to herbicidal compounds of formulae (Ia), (Ib) or (Ic): ##STR1##Type: GrantFiled: November 22, 1999Date of Patent: October 31, 2000Assignee: Rhone-Poulenc Agriculture LtdInventor: David William Hawkins
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Patent number: 6133432Abstract: 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: GrantFiled: December 1, 1998Date of Patent: October 17, 2000Assignee: Rhone-Poulenc AgroInventors: David William Hawkins, David Alan Roberts, John Harry Wilkinson, Jean-Louis Clavel
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Patent number: 6114538Abstract: Compounds of the formula are useful as intermediates to new herbicidal 4-benzoylisoxazoles.Type: GrantFiled: October 19, 1999Date of Patent: September 5, 2000Assignee: Rhone Poulenc Agriculture LimitedInventors: Angela Jacqueline Bailey, Michael Gingell, David William Hawkins
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Patent number: 6013805Abstract: The invention relates to intermediates to herbicidal compounds of formulae (Ia), (Ib) or (Ic): ##STR1##Type: GrantFiled: September 29, 1998Date of Patent: January 11, 2000Assignee: Rhone-Poulenc Agriculture LtdInventor: David William Hawkins
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Patent number: 5998653Abstract: Compounds of the formula ##STR1## are useful as intermediates to new herbicidal 4-benzoylisoxazoles.Type: GrantFiled: May 19, 1997Date of Patent: December 7, 1999Assignee: Rhone Poulenc Agriculture LimitedInventors: Angela Jacqueline Bailey, Michael Gingell, David William Hawkins
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Patent number: 5916618Abstract: 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: GrantFiled: October 7, 1997Date of Patent: June 29, 1999Assignee: Rhone-Poulenc Agriculture Ltd.Inventors: Leslie Roy Hatton, Ian George Buntain, David William Hawkins, Edgar William Parnell, Christopher John Pearson, David Alan Roberts
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Patent number: 5849928Abstract: The invention relates to compounds of formulae (Ia), (Ib) or (Ic): ##STR1## and to their use as herbicides.Type: GrantFiled: March 21, 1997Date of Patent: December 15, 1998Assignee: Rhone-Poulenc Agriculture LimitedInventor: David William Hawkins
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Patent number: 5714191Abstract: 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: GrantFiled: May 30, 1995Date of Patent: February 3, 1998Assignee: Rhone-Poulenc Agriculture Ltd.Inventors: Leslie Roy Hatton, Ian George Buntain, David William Hawkins, Edgar William Parnell, Christopher John Pearson, David Alan Roberts
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Patent number: 5658858Abstract: The invention relates to 4-benzoylisoxazole compounds, compositions containing them, a process for preparation, and their use as herbicides.Type: GrantFiled: September 6, 1996Date of Patent: August 19, 1997Assignee: Rhone-Poulenc Argriculture LimitedInventors: Angela Jacqueline Bailey, Michael Gingell, David William Hawkins
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Patent number: 4002655Abstract: 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: GrantFiled: February 10, 1975Date of Patent: January 11, 1977Assignee: Biorex Laboratories LimitedInventor: David William Hawkins