Patents Represented by Attorney James A. Costello

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  • Herbicidal pyrones
    Patent number: 4939278
    Abstract: Compounds of the general formula (2) and isomeric and/or tautomeric forms thereof ##STR1## characterized in that R.sup.1 is selected from the group consisting of: hydrogen; alkyl; alkenyl; alkynyl; cycloalkyl; cycloalkenyl; substituted alkyl or substituted cycloalkyl wherein the alkyl or cycloalkyl group is substituted with a substituent selected from the group consisting of alkoxy, alkylthio, optionally substituted phenyl, optionally substituted heterocycle; optionally substituted phenyl; optionally substituted heterocycle, alkyl sulfonyl; optionally substituted benzene sulfonyl; an acyl group; and an inorganic or organic cation;R.sup.
    Type: Grant
    Filed: April 13, 1988
    Date of Patent: July 3, 1990
    Assignee: Dunlena Pty. Limited
    Inventors: Janet E. Anderson-McKay, Andris J. Liepa
  • Gene coding for insecticidal crystal protein
    Patent number: 4918006
    Abstract: Recombinant plasmids containing the larvicidal delta-endotoxin gene were constructed by inserting HindIII fragments of the Bacillus thuringiensis var. israelensis 72-75 Md plasmid into the Escherichia coli vector pUC12. Two recombinants producing a 27-kdal toxin (pIP173 and pIP174) were indentified by screening clones in an E. coli in vitro transcription-translation system. Both recombinants comprised pUC12 and common 9.7 kb HindIII fragment of the B. thuringiensis plasmid. The 27,340 Da polypeptide synthesized in vito from pIP174 transformed into E. coli JM101 and from B. subtilis 168 and spoOJ87 containing the 1.2 kb TaqI fragment from pIP173 was lethal to mosquito larvae.
    Type: Grant
    Filed: February 3, 1986
    Date of Patent: April 17, 1990
    Assignee: E. I. Du Pont de Nemours and Company
    Inventors: David J. Ellar, Elizabeth S. Ward
  • Method for detecting carcinomatous and precarcinomatous colo-rectal disease
    Patent number: 4912031
    Abstract: A method for distinguishing between carcinomatous and/or precarcinomatous colo-rectal disease and histologically similar conditions due to diseases that are not carcinomatous or precarcinomatous comprising contacting colo-rectal tissue with an antibody that binds to blood group substance H and determining the presence of carcinomatous or precarcinomatous disease upon a finding of bound antibody, or the absence of such disease upon the finding of no bound antibody.
    Type: Grant
    Filed: October 23, 1987
    Date of Patent: March 27, 1990
    Assignee: E. I. Du Pont de Nemours and Company
    Inventors: Carolyn C. Compton, Paul J. Durda
  • Device for killing arthropods
    Patent number: 4908977
    Abstract: An improved device for killing arthropods characterized by a sloped target area that contains a toxicant, the device being devoid of any containment vessel for dead arthropods.
    Type: Grant
    Filed: January 13, 1989
    Date of Patent: March 20, 1990
    Assignee: E. I. Du Pont de Nemours and Company
    Inventor: James P. Foster
  • Aluminum nitride flakes and spheres
    Patent number: 4908197
    Abstract: Methods are described for preparing aluminum nitride of controllable morphology for ceramic and heat conduction applications. The methods comprise forming spherical particles or flakes of an intermediate, RA1NH, followed by heating the spheres or flakes of RA1NH at elevated temperatures to produce high purity aluminum nitride of corresponding morphology. Spheres of RA1NH are formed by (i) freezing a suspension of RA1NH in a liquid medium and thawing, by (ii) aging the suspension, or by (iii) dissolving RA1NH in a liquid medium and precipitating it. Flakes are formed by freezing a suspension of RAINH in a liquid medium and removing frozen medium from the frozen suspension.
    Type: Grant
    Filed: April 7, 1989
    Date of Patent: March 13, 1990
    Assignee: E. I. Du Pont de Nemours and Company
    Inventors: John D. Bolt, Walter Mahler, Frederick N. Tebbe, Robert J. Young, Jr.
  • Herbicidal sulfonamides
    Patent number: 4906282
    Abstract: Herbicidal sulfonamides having the general formula ##STR1## wherein J, W, R and A are more particularly described herein, such compounds and agricultural compositions containing them being useful as preemergent or postemergent herbicides or both, or as plant growth regulants, including the manner of their use.
    Type: Grant
    Filed: June 15, 1988
    Date of Patent: March 6, 1990
    Assignee: E. I. Du Pont de Nemours and Company
    Inventor: Morris P. Rorer
  • N-acyl phosphonamidothioates and dithioates
    Patent number: 4900733
    Abstract: Certain N-acyl phosphonamidothioates and dithioates are useful as insecticides, acaricides and nematocides.
    Type: Grant
    Filed: October 13, 1987
    Date of Patent: February 13, 1990
    Assignee: E. I. DuPont De Nemours & Co.
    Inventor: Mohamed A. H. Fahmy
  • Pesticidal benzoylurea compounds
    Patent number: 4873327
    Abstract: Compounds of the general formula ##STR1## in which each of A and B independently represents a halogen atom or an alkyl group; m is 0 or 1; Q represents a group of general formula ##STR2## in which R is as defined, or Q represents a group of general formula --CR.sup.2 R.sup.3 R.sup.4 in which R.sup.2, R.sup.3 and R.sup.4 are as defined; together with processes for the preparation of such compounds, pesticidal compositions containing them and their pesticidal use, and certain novel intermediates.
    Type: Grant
    Filed: March 8, 1988
    Date of Patent: October 10, 1989
    Assignee: E. I. Du Pont de Nemours and Company
    Inventors: Martin Anderson, Anthony G. Brinnand
  • Gas phase preparation of aluminum nitride
    Patent number: 4865830
    Abstract: Admixing an aluminum alkyl, and optionally a boron compound, with a hydride of nitrogen in the gas phase and maintaining a gas phase temperature, optionally in the presence of a carrier gas, and producing aluminum nitride alone or in admixture with a precursor thereof or boron nitride or both.
    Type: Grant
    Filed: January 27, 1988
    Date of Patent: September 12, 1989
    Assignee: E. I. Du Pont de Nemours and Company
    Inventors: Ulrich Klabunde, Edward J. Newitt, Frederick N. Tebbe
  • Benzylsulfonylureas and arylsulfamoylureas
    Patent number: 4853025
    Abstract: Benzylsulfonylureas and arylsulfamoylureas are useful as pre-emergent and post-emergent herbicides and as plant growth regulants.
    Type: Grant
    Filed: February 16, 1988
    Date of Patent: August 1, 1989
    Assignee: E. I. Du Pont de Nemour and Company
    Inventors: Robert J. Pasteris, Mark E. Thompson
  • .beta.-substituted polyfluoropropionate salts and derivatives
    Patent number: 4851161
    Abstract: .beta.-substituted polyfluoropropionate salts, derivatives and copolymers and processes for the preparation thereof.
    Type: Grant
    Filed: December 16, 1986
    Date of Patent: July 25, 1989
    Assignee: E. I. Du Pont de Nemours and Company
    Inventor: Carl G. Krespan
  • Catalytic deposition of metals in solid matrices
    Patent number: 4830903
    Abstract: A process for depositing metal in the form of an interlayer within a solid matrix. The process is characterized in the use of electroactive transfer agents to carry electrons from the cathode to the desired locus within the matrix where the metal cation (M.sup.n+) is reduced to its zero-valent state. Also disclosed are composites of metallic-interlayer-containing matrices.
    Type: Grant
    Filed: February 26, 1987
    Date of Patent: May 16, 1989
    Assignee: E. I. Du Pont De Nemours and Company
    Inventor: Moshe Levy
  • Method for making polyamide anion solutions
    Patent number: 4824881
    Abstract: Deprotonation of polyamides employing alkoxide and/or alkali amide bases in solution in a liquid sulfoxide, the solutions being useful to make N-alkylated and N-acylated derivatives and to fabricate polyamide films, fibers, coatings, manufactured articles, and the like.
    Type: Grant
    Filed: January 14, 1988
    Date of Patent: April 25, 1989
    Assignee: E. I. Du Pont de Nemours and Company
    Inventor: Young H. Kim
  • Process for preparing polyfluoro .gamma.-ketoesters and lactone isomers thereof
    Patent number: 4822897
    Abstract: Polyfluoro .gamma.-ketoester compounds are obtained by reaction of ethylenic monoolefins, a metal or quaternary ammonium cyanide, and a fluoroester. These compounds, which have a general formula R.sub.F C(O)CFYCF.sub.2 CO.sub.2 R.sup.1, can be copolymerized directly with fluorinated ethylenic monoolefins, or further reacted to form vinyl ether and allyl ether derivatives which may also be copolymerized with ethylenic comonomers, forming solid, moldable copolymers with useful properties determined by the nature of pendant functional groups R.sub.F.
    Type: Grant
    Filed: June 3, 1987
    Date of Patent: April 18, 1989
    Assignee: E. I. Du Pont de Nemours and Company
    Inventor: Carl G. Krespan
  • Monoclonal hybridoma antibody specific for a human epithelial antigen
    Patent number: 4814275
    Abstract: A monoclonal hybridoma antibody with specificity for an antigen that is present on tumors of epithelial origin; the cell line secreting said antibodies; a process for selecting the cell line; a diagnostic process for detecting the antigen and a therapeutic process for neutrailization of the angtigen.
    Type: Grant
    Filed: May 13, 1985
    Date of Patent: March 21, 1989
    Assignee: E.I. DuPont de Nemours and Company
    Inventors: Paul J. Durda, David J. Green, Marcia J. Stone, Dennis E. Vaccaro
  • Certain N-(R-sulfonyl) phosphonamidothioates and dithioates
    Patent number: 4804654
    Abstract: Compounds of the formula ##STR1## wherein the symbols have assigned meanings, and their use as insecticides and/or miticides.
    Type: Grant
    Filed: March 4, 1987
    Date of Patent: February 14, 1989
    Assignee: E. I. Du Pont de Nemours and Company
    Inventor: Mohamed A. H. Fahmy
  • Herbicidal ortho-sulfonamide benzenesulfonylureas
    Patent number: 4802906
    Abstract: Ortho-Sulfonamide benzenesulfonylureas, such as N-cyclopropyl-N'-[(4,6-dimethoxypyrimidin-2-yl)aminocarbonyl]-1,2-benzened isulfonamide, are useful as pre-emergent and post-emergent herbicides.
    Type: Grant
    Filed: December 23, 1985
    Date of Patent: February 7, 1989
    Assignee: E. I. Du Pont de Nemours and Company
    Inventor: Donald J. Dumas
  • 8-substituted pyrazolopentathiepins and related compounds
    Patent number: 4795817
    Abstract: Heteropentathiepins including pyrazolopentathiepins substituted in the 8-position; intermediate pyrazolo-1,2,3-thiadiazoles, pyrazolothiazathiolium chlorides, and 5-substituted aminopyrazoles; process for making the pentathiepins by reacting the corresponding 1,2,3-thiadiazoles with sulfur at elevated temperatures; process for making the thiazathiolium chlorides; and use of the pentathiepins as fungicides or as sulfur sensitizers in photographic emulsions.
    Type: Grant
    Filed: February 21, 1986
    Date of Patent: January 3, 1989
    Assignee: E. I. Du Pont de Nemours and Company
    Inventor: Bertrand L. Chenard
  • Support particles coated with or particles of precursors for or of biologically active glass
    Patent number: 4786555
    Abstract: An aqueous solution of precursors for biologically active glass, support particles coated with the solution, support particles coated with the glass, spheroidal particles of biologically active glass, processes for making the solution, coating the support, and for making the coated support and the spheroidal glass particles. The materials that comprise the biologically active glass are useful in prosthetic devices and implants for the human body.
    Type: Grant
    Filed: June 9, 1986
    Date of Patent: November 22, 1988
    Assignee: E. I. Du Pont de Nemours and Company
    Inventor: Edward G. Howard, Jr.
  • Substituted benzopentathiepins, process therefor and intermediates
    Patent number: 4786739
    Abstract: Substituted benzopentathiepins, their preparation from 1,2,3-benzothiadiazoles and elemental sulfur, selected 1,2,3-benzothiadiazoles; the benzopentathiepins being useful as biologically active compounds or as intermediates to 1,2-benzenedithiols.
    Type: Grant
    Filed: January 6, 1986
    Date of Patent: November 22, 1988
    Assignee: E. I. DuPont de Nemours and Company
    Inventor: Bertrand L. Chenard