Patents by Inventor Edgar W. Parnell
Edgar W. Parnell 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: 5633444Abstract: Plant cells are transformed by:(i) transforming a plant cell whose growth is sensitive to inhibition by a sulfonamide or a salt thereof with a chimaeric gene comprising (a) a plant promoter, (b) a sulfonamide resistance gene having a sequence encoding a transit peptide fused to the 5'-end of the resistance gene and (c) a plant polyadenylation/terminator sequence;(ii) selecting a transformed plant cell whose growth is resistant to inhibition by a sulfonamide or salt thereof;(iii) optionally, regenerating from the transformed plant cell a genetically transformed plant which exhibit the said resistance;(iv) optionally, obtaining seed from the regenerated plant; and(v) optionally, propagating plants from the seed.The growth of weeds can be controlled by a locus where a transgenic plant obtained as above is being cultivated by applying to the locus an effective amount of a herbicide, such as asulam, which acts by inhibiting dihydropteroate synthase.Type: GrantFiled: May 19, 1995Date of Patent: May 27, 1997Assignee: Rhone-Poulenc Agrochimie LimitedInventors: Jean F. Guerineau, Philip M. Mullineaux, Edgar W. Parnell
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Patent number: 5608077Abstract: 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: March 4, 1997Assignee: Rhone-Poulenc Agriculture Ltd.Inventors: Leslie R. Hatton, Ian G. Buntain, David W. Hawkins, Edgar W. Parnell, Christopher J. Pearson, David A. Roberts
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Patent number: 5597717Abstract: Plant cells are transformed by:(i) transforming a plant cell whose growth is sensitive to inhibition by a sulfonamide or a salt thereof with a chimaeric gene comprising (a) a plant promoter, (b) a sulfonamide resistance gene having a sequence encoding a transmit peptide fused to the 5'-end of the resistance gene and (c) a plant polyadenylation/terminator sequence;(ii) selecting a transformed plant cell whose growth is resistant to inhibition by a sulfonamide or salt thereof;(iii) optionally, regenerating from the transformed plant cell a genetically transformed plant which exhibit the said resistance;(iv) optionally, obtaining seed from the regenerated plant; and(v) optionally, propagating plants from the seed.The growth of weeds can be controlled at a locus where a transgenic plant obtained as above is being cultivated by applying to the locus an effective amount of a herbicide, such as asulam, which acts by inhibiting dihydroptercate synthase.Type: GrantFiled: May 19, 1995Date of Patent: January 28, 1997Assignee: Rhone-Poulenc Agrochimie LimitedInventors: Jean F. Guerineau, Philip M. Mullineaux, Edgar W. Parnell
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Patent number: 5547974Abstract: 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 5, 1993Date of Patent: August 20, 1996Assignee: Rhone-Poulenc Agriculture Ltd.Inventors: Leslie R. Hatton, Ian G. Buntain, David W. Hawkins, Edgar W. Parnell, Christopher J. Pearson, David A. Roberts
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Patent number: 5232940Abstract: 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 7, 1990Date of Patent: August 3, 1993Inventors: Leslie R. Hatton, Ian G. Buntain, David W. Hawkins, Edgar W. Parnell, Christopher J. Pearson, David A. Roberts
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Patent number: 4629495Abstract: Herbicidal compounds of the formula: ##STR1## wherein A represents R.sup.1 R.sup.2 N-- (wherein R.sup.1 represents C.sub.1-8 alkyl or C.sub.2-8 alkenyl or alkynyl unsubstituted or substituted by CN, OH, C.sub.1-6 alkoxy, carboxy, C.sub.2-9 alkoxycarbonyl, aminocarbonyl optionally substituted by C.sub.1-8 alkyl or C.sub.2-8 alkenyl, C.sub.1-8 alkoxyaminocarbonyl, C.sub.1-8 alkanesulphonamidocarbonyl, --C(.dbd.O)Het, where Het represents a nitrogen-containing heterocyclic group, or one or more halogen atoms or R.sup.1 represents C.sub.3-6 cycloalkyl optionally substituted by C.sub.1-4 alkyl and R.sup.2 represents H or R.sup.1, or R.sup.1 represents C.sub.1-4 alkylthio and R.sup.2 represents H, or A represents R.sup.p (R.sup.q)--C.dbd.N-- (wherein R.sup.p represents C.sub.1-4 alkoxy or amino substituted by one or two C.sub.1-4 alkyl groups and R.sup.q represents H or C.sub.1-4 alkyl) or A represents 2-oxo-azetidin-1-yl, 2-oxo-pyrrolidin-1-yl or 2-oxo-piperidin-1-yl optionally substituted by C.sub.Type: GrantFiled: July 13, 1983Date of Patent: December 16, 1986Assignee: May & Baker LimitedInventors: Leslie R. Hatton, Edgar W. Parnell, David A. Roberts
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Certain N-(2,4-difluorophenyl)-2-(3-trifluoromethylphenoxy)-nicotinamides having herbicidal activity
Patent number: 4618366Abstract: New nicotinamide derivatives of the general formula: ##STR1## wherein R represents a hydrogen atom or a methyl group, have been found to possess useful herbicidal properties. Herbicidal compositions containing such nicotinamide derivatives are described and also processes for preparing such nicotinamide derivatives.Type: GrantFiled: June 15, 1984Date of Patent: October 21, 1986Assignee: May & Baker LimitedInventors: Michael C. Cramp, James Gilmour, Edgar W. Parnell -
Patent number: 4541963Abstract: New N-phenylpyrazole derivatives of the formula: ##STR1## (wherein R.sup.12 represents a chlorine atom, R.sup.13 represents a hydrogen, fluorine or chlorine atom, R.sup.14 represents a hydrogen or fluorine atom and R.sup.15 represents a hydrogen, fluorine or chlorine atom, with the proviso that when R.sup.14 represents a fluorine atom, R.sup.15 represents a fluorine or chlorine atom, or R.sup.12, R.sup.13 and R.sup.15 each represents a fluorine atom and R.sup.14 represents a hydrogen or fluorine atom) possess useful herbicidal properties.Type: GrantFiled: November 14, 1984Date of Patent: September 17, 1985Assignee: May & Baker LimitedInventors: Leslie R. Hatton, Edgar W. Parnell, David A. Roberts
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Patent number: 4505740Abstract: New N-phenylpyrazole derivatives of the formula: ##STR1## (wherein R.sup.12 represents a chlorine atom, R.sup.13 represents a hydrogen, fluorine or chlorine atom, R.sup.14 represents a hydrogen or fluorine atom and R.sup.15 represents a hydrogen, fluorine or chlorine atom, with the proviso that when R.sup.14 represents a fluorine atom, R.sup.15 represents a fluorine or chlorine atom, or R.sup.12, R.sup.13 and R.sup.15 each represents a fluorine atom and R.sup.14 represents a hydrogen or fluorine atom) possess useful herbicidal properties.Type: GrantFiled: July 15, 1982Date of Patent: March 19, 1985Assignee: May & Baker LimitedInventors: Leslie R. Hatton, Edgar W. Parnell, David A. Roberts
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Patent number: 4496390Abstract: N-Phenylpyrazole derivatives of the formula: ##STR1## (wherein each of R.sup.5 and R.sup.6 represents a C.sub.1 -C.sub.4 alkyl or alkoxy radical, a trifluoromethyl, trifluoromethoxy, nitro, cyano or primary amino radical, or a fluorine, chlorine or bromine atom, each of R.sup.7, R.sup.8 and R.sup.9 represents a hydrogen atom, a C.sub.1 -C.sub.4 alkyl or alkoxy radical, a trifluoromethyl, trifluoromethoxy, nitro, cyano or primary amino radical or a fluorine, chlorine or bromine atom, or R.sup.5, R.sup.7, R.sup.8 and R.sup.9 each represents a hydrogen atom and R.sup.6 represents a trifluoromethoxy or trifluoromethyl radical, and R.sup.10 represents a cyano radical or substituted carbamoyl radical --CONHR.sup.11, wherein R.sup.11 represents a methyl or ethyl radical) have been found to possess useful herbicidal properties. All such N-phenylpyrazole derivatives with the exception of 5-amino-4-cyano-1-(2,4-dichlorophenyl)pyrazole and 5-amino-4-cyano-1-(4-chloro-2-methylphenyl)pyrazole are new compounds.Type: GrantFiled: July 15, 1982Date of Patent: January 29, 1985Assignee: May & Baker LimitedInventors: Leslie R. Hatton, Edgar W. Parnell, David A. Roberts
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Patent number: 4459150Abstract: New acylamino-N-phenylpyrazole derivatives of the formula: ##STR1## [wherein R.sup.1 represents R.sup.8 C(.dbd.O)--(wherein R.sup.8 represents H, C.sub.1-7 alkyl or C.sub.1-4 alkoxy optionally substituted by C.sub.1-4 alkoxy, C.sub.2-5 alkoxycarbonyl or halogen, C.sub.3-4 alkenyloxy, C.sub.3-6 cycloalkyl optionally substituted by CH.sub.3 or C.sub.2 H.sub.5, or phenoxy, R.sup.2 represents H or R.sup.8 C(.dbd.O)--, or R.sup.1 and R.sup.2 together represent --CO--(CR.sup.a R.sup.b).sub.m --CO--, R.sup.3 represents F, Cl, Br, C.sub.1-4 alkyl optionally substituted by halogen, or C.sub.2-4 alkenyl, R.sup.4 represents F, Cl, Br, NO.sub.2, CH.sub.3 or C.sub.2 H.sub.5 and R.sup.5, R.sup.6 and R.sup.7 represent H, F, Cl, Br, NO.sub.2, CH.sub.3 or C.sub.2 H.sub.5, or R.sup.4 and R.sup.5 each represent Cl and R.sup.3, R.sup.6 and R.sup.7 each represent H, R.sup.a and R.sup.b represent H or C.sub.1-4 alkyl, and m is 2 or 3] possess useful herbicidal properties.Type: GrantFiled: July 15, 1982Date of Patent: July 10, 1984Assignee: May & Baker LimitedInventors: Leslie R. Hatton, Edgar W. Parnell, David A. Roberts
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Patent number: 4347252Abstract: The hitherto unknown phenylpropargylamine derivative 1-(3,5-bistrifluoromethylphenyl)-3-(4-tert-butylpiperidino)prop-1-yne, and acid addition salts thereof, have been found to be useful for killing warm-blooded vermin, especially rodents. Processes for the preparation of the new phenylpropargylamine derivative are described and so are suitable rodenticidal compositions.Type: GrantFiled: May 11, 1981Date of Patent: August 31, 1982Assignee: May & Baker Ltd.Inventors: Allan P. Leftwick, Edgar W. Parnell
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Patent number: 4246021Abstract: The invention provides new imidazole derivatives of the general formula: ##STR1## wherein R.sup.1 represents a methyl or ethyl group, R.sup.2, R.sup.3 and R.sup.4, which may be the same or different, each represent a hydrogen or halogen atom or an alkyl or alkoxy group which may optionally be substituted by one or more fluorine atoms, and R.sup.2, R.sup.3 and R.sup.4 do not all represent hydrogen atoms, which possess useful herbicidal properties.Type: GrantFiled: August 22, 1979Date of Patent: January 20, 1981Assignee: May & Baker LimitedInventors: James Gilmour, Leslie R. Hatton, Edgar W. Parnell, Dennis Warburton, William G. Leeds