Patents by Inventor Lester L. Maravetz

Lester L. Maravetz 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: 8338618
    Abstract: Disclosed herein are novel oleanolic acid derivatives. Methods of preparing these compounds are also disclosed. The oleanolic acid derivatives of this invention may be used for the treatment and prevention of many diseases, including cancer, neurological disorders, inflammation, and pathologies involving oxidative stress.
    Type: Grant
    Filed: November 11, 2011
    Date of Patent: December 25, 2012
    Assignee: Reata Pharmaceuticals, Inc.
    Inventors: Xin Jiang, Jack Greiner, Lester L. Maravetz, Stephen S. Szucs, Melean Visnick
  • Publication number: 20120238767
    Abstract: Disclosed herein are novel oleanolic acid derivatives. Methods of preparing these compounds are also disclosed. The oleanolic acid derivatives of this invention may be used for the treatment and prevention of many diseases, including cancer, neurological disorders, inflammation, and pathologies involving oxidative stress.
    Type: Application
    Filed: November 11, 2011
    Publication date: September 20, 2012
    Inventors: Xin Jiang, Jack Greiner, Lester L. Maravetz, Stephen S. Szucs, Melean Visnick
  • Patent number: 8071632
    Abstract: Disclosed herein are novel oleanolic acid derivatives. Methods of preparing these compounds are also disclosed. The oleanolic acid derivatives of this invention may be used for the treatment and prevention of many diseases, including cancer, neurological disorders, inflammation, and pathologies involving oxidative stress.
    Type: Grant
    Filed: April 20, 2009
    Date of Patent: December 6, 2011
    Assignee: Reata Pharmaceuticals, Inc.
    Inventors: Xin Jiang, Jack Greiner, Lester L. Maravetz, Stephen S. Szucs, Melean Visnick
  • Patent number: 7842832
    Abstract: ?-Amino-?-Cyanoacrylates of formula I where the variables have the following meanings: R1 is n-alkyl, n-alkenyl or alkoxyalkyl; R2,R3 are alkyl, which may be partially or fully halogenated and/or may carry a substituent from the group consisting of cyano, alkoxy, haloalkoxy, alkylthio, haloalkylthio, C1-C6-alkylsulfinyl, haloalkylsulfinyl, alkylsulfonyl and haloalkylsulfonyl, are alkenyl or alkynyl; or R2 and R3 together with the carbon atom to which they are attached form a cycloalkyl ring in which one or two nonadjacent CH2 groups may be replaced by oxygen or sulfur, and where the cycloalkyl ring may be substituted by halogen or alkyl; R4 is hydrogen, halogen, cyano or alkyl, where the substituents R2, R3 and R4 or two of the radicals R2, R3 and R4 are not simultaneously methyl, and their agriculturally useful salts, processes and intermediates for their preparation; and the use of these compounds or of compositions comprising these compounds for controlling undesirable plants are described.
    Type: Grant
    Filed: December 17, 2002
    Date of Patent: November 30, 2010
    Assignee: BASF SE
    Inventors: Albert C. Everson, Daniel J. Coughlin, Michael A. Guaciaro, Linda B. Fleming, Lester L. Maravetz, John L. Huppatz
  • Publication number: 20100048911
    Abstract: Disclosed herein are novel oleanolic acid derivatives. Methods of preparing these compounds are also disclosed. The oleanolic acid derivatives of this invention may be used for the treatment and prevention of many diseases, including cancer, neurological disorders, inflammation, and pathologies involving oxidative stress.
    Type: Application
    Filed: April 20, 2009
    Publication date: February 25, 2010
    Inventors: Xin Jiang, Jack Greiner, Lester L. Maravetz, Stephen S. Szucs, Melean Visnick
  • Patent number: 6352958
    Abstract: Novel herbicidal compounds, compositions containing them, and methods for their use in controlling weeds are disclosed. The novel herbicidal compounds are represented by formula I: where J is a 1-substituted-6-trifluoromethyl-2,4-pyrimidinedione-3-yl, a 1-substituted-6-trifluoromethyl-1,3,5-triazine-2,4-dion-1-yl, a 3,4,5,6-tetrahydrophthalimid-1-yl, a 4-difluoromethyl-4,5-dihydro-3-methyl-1,2,4-triazol-5(1H)-on-1-yl, a 5,6,7,8-tetrahydro-1H,3H-[1,3,4]thiadiazolo[3,5-a]pyridazineimin-1-yl, or a 1,6,8-triazabicyclo[4.3.0]-nonane-7,9-dion-8-yl ring attached at the 7 position of a benzofuran, benzoxazole, indole, 2,3-dihydrobenzimidazole or benzimidazole, and X is selected from hydrogen, halogen, cyano, nitro, and amino. Preferred R groups are optionally substituted alkyl groups.
    Type: Grant
    Filed: April 12, 2000
    Date of Patent: March 5, 2002
    Assignee: FMC Corporation
    Inventors: Scott D. Crawford, Lester L. Maravetz, George Theodoridis, Benjamin Dugan
  • Patent number: 6080702
    Abstract: Disclosed are herbicidal heterocyclic benzisoxazoles and benzisoxazolidinones of formula (I): ##STR1## wherein A is (a), (b) or (c); U is N or NR; X is CO or CR.sup.2 ; and R, R.sup.1, R.sup.2, R.sup.3, Y and Z are as disclosed in the disclosure.
    Type: Grant
    Filed: September 14, 1998
    Date of Patent: June 27, 2000
    Assignee: FMC Corporation
    Inventors: George Theodoridis, Lester L. Maravetz, Scott D. Crawford
  • Patent number: 6077812
    Abstract: Novel herbicidal compounds, compositions containing them, and methods for their use in controlling weeds are disclosed. The novel herbicidal compounds are represented by formula I: ##STR1## where J is a 1-substituted-6-trifluoromethyl-2,4-pyrimidinedione-3-yl, a 1-substituted-6-trifluoromethyl-1,3,5-triazine-2,4-dion-1-yl, a 3,4,5,6-tetrahydrophthalimid-1-yl, a 4-difluoromethyl-4,5-dihydro-3-methyl-1,2,4-triazol-5(1H)-on-1-yl, a 5,6,7,8-tetrahydro-1H,3H-[1,3,4]thiadiazolo[3,5-a]pyridazineimin-1-yl, or a 1,6,8-triazabicyclo[4.3.0]-nonane-7,9-dion-8-yl ring attached at the 7 position of a benzofuran, benzoxazole, indole, 2,3-dihydrobenzimidazole or benzimidazole, and X is selected from hydrogen, halogen, cyano, nitro, and amino. Preferred R groups are optionally substituted alkyl groups.
    Type: Grant
    Filed: February 24, 1998
    Date of Patent: June 20, 2000
    Assignee: FMC Corporation
    Inventors: Scott D. Crawford, Lester L. Maravetz, George Theodoridis, Benjamin Dugan
  • Patent number: 5753595
    Abstract: Herbicidal 3-(substituted benzoxazol-7-yl) and 3-(substituted benzothiazol-7-yl)-1 -substituted-6-trifluoromethyl-2,4-(1H,3H)pyrimidinediones, compositions containing them, and methods of using them to control undesired plant growth are disclosed, as are novel intermediates used in the preparation of these compounds. The herbicidal compounds of the present invention are defined by the following generic structure: ##STR1## in which R is selected from a variety of substituents, including halogen, alkyl, alkenyl, alkynyl, phenyl, phenylalkyl, alkylphenylalkyl, haloalkyl, hydroxy, alkoxy, hydroxyalkyl, halophenyl, halophenylalkyl, alkoxyphenyl, sulfhydryl, alkylthio, piperidinyl, alkylamino, alkoxyalkyl, phenoxy, amino, alkylsulfonylamino, phenylsulfonylamino, and carboxy; R.sup.1 is alkyl or amino; R.sup.
    Type: Grant
    Filed: July 31, 1996
    Date of Patent: May 19, 1998
    Assignee: FMC Corporation
    Inventors: Scott D. Crawford, Lester L. Maravetz, George Theodoridis
  • Patent number: 5661108
    Abstract: Herbicidal 3-(bicyclic nitrogen-containing heterocycle)-substituted-1-methyl-6-trifluoromethyluracils, compositions containing them, and methods of using them to control undesired plant growth are disclosed. The herbicidal compounds of the present invention are defined by the following generic structure: ##STR1## in which V is N or C--R.sup.1 ; R is hydrogen, straight or branched chain alkyl, alkenyl, alkynyl, hydroxyalkyl, alkoxyalkyl, haloalkyl, alkoxycarbonylalkyl, arylalkyl, optionally substituted with halogen, or aminocarbonylalkyl in which the amino nitrogen is substituted with arylalkyl or one or two alkyl; R.sup.1 is hydrogen, alkyl, haloalkyl, or cyano; R.sup.2 is lower alkyl or amino; and X is hydrogen or halogen, with the proviso that each aliphatic component has not more than six carbon atoms.
    Type: Grant
    Filed: January 18, 1995
    Date of Patent: August 26, 1997
    Assignee: FMC Corporation
    Inventors: Scott D. Crawford, Lester L. Maravetz, George Theodoridis
  • Patent number: 5321002
    Abstract: Herbicidal compounds, compositions containing them, and a method for controlling weeds by application of the compositions are disclosed. The herbicidal compounds are 2-(1-aryl-4-cyano-5-pyrazolylmethyleneiminooxy)alkanoic acid derivatives of the structure: ##STR1## in which R is lower alkyl, lower alkenyl, or lower alkynyl, each optionally substituted with halogen, or CH(R.sup.1)--C(O)--Y--R.sup.2 ; R.sup.1 is hydrogen or lower alkyl; R.sup.2 is one of a variety of substituents; Y is O or NH; Z is lower alkyl or lower alkoxy; and Ar is 3-chloro-5-trifluoromethyl-2-pyridyl, 2,6-dichloro-4-trifluoromethylphenyl, or 2,4,6-trichlorophenyl.
    Type: Grant
    Filed: August 11, 1993
    Date of Patent: June 14, 1994
    Assignee: FMC Corporation
    Inventor: Lester L. Maravetz
  • Patent number: 5262382
    Abstract: This application discloses herbicidal 1-arylpyrazoles, compositions containing them, methods of preparing them, and methods for controlling undesired plant growth by preemergent or postemergent application of the herbicidal compositions to the locus where control is desired. The herbicidal compounds have the following generic structure: ##STR1## in which Ar is ##STR2## R is chlorine, cyano, or nitro; R.sup.1 is a group --C(O)CR.sup.11 R.sup.12 --O--R.sup.13 in which R.sup.11 and R.sup.12 are independently hydrogen or alkyl; R.sup.13 is hydrogen, alkylcarbonyl, phenylcarbonyl, phenylmethyl, or alkylaminosulfonyl; R.sup.2 is hydrogen, alkyl, alkylcarbonyl, alkoxycarbonyl, or a group --C(O)CR.sup.11 R.sup.12 --O--R.sup.13 ; R.sup.3, R.sup.4, R.sup.6, R.sup.7 are independently hydrogen or halogen; R.sup.5 is halogen or haloalkyl; R.sup.8 is halogen; R.sup.9 is haloalkyl; R.sup.10 is hydrogen, halogen, or a group --NR.sup.14 R.sup.15 in which R.sup.14 is hydrogen or alkyl; R.sup.
    Type: Grant
    Filed: September 4, 1992
    Date of Patent: November 16, 1993
    Assignee: FMC Corporation
    Inventor: Lester L. Maravetz
  • Patent number: 5250504
    Abstract: This application discloses herbicidal .beta.-pyrazolylacrylic acids, compositions containing them, methods of preparing them, and methods for controlling undesired plant growth by preemergent or postemergent application of the herbicidal compositions to the locus where control is desired. The herbicidal compounds have the formula ##STR1## in which X is chlorine or fluorine, X.sup.1 is hydrogen, chlorine, or fluorine, X.sup.2 is chlorine, fluorine, trifluoromethyl, or ethoxy, and X.sup.3 is hydrogen, chlorine, or fluorine; M is --CH--, --CF--, or --CCl--; and R.sup.1 is --CH.dbd.C(--R.sup.2)--C(.dbd.O)--Z--[S(O).sub.2 ].sub.n --R.sup.3 in which R.sup.2 is hydrogen or methyl; R.sup.3 is hydrogen, lower alkyl, or phenylmethyl optionally substituted with one or more of chlorine, bromine, fluorine, or methyl; Z is --O--, --S-- or --NR.sup.4 ; and n is 0 or 1; provided that when Z is --O-- or --S--, n is 0.
    Type: Grant
    Filed: January 29, 1993
    Date of Patent: October 5, 1993
    Assignee: FMC Corporation
    Inventor: Lester L. Maravetz
  • Patent number: 5198014
    Abstract: This application discloses hebricidal B-pyrazolylacrylic acids, compositions containing them, methods of preparing them, and methods for controlling undesired plant growth by preemergent or postemergent application of the herbicidal compositions to the locus where control is desired. The herbicidal compounds have the formula ##STR1## in which the radicals are defined in the claims.
    Type: Grant
    Filed: November 20, 1991
    Date of Patent: March 30, 1993
    Assignee: FMC Corporation
    Inventor: Lester L. Maravetz
  • Patent number: 5167691
    Abstract: This application discloses herbicidal 1-aryl-pyrazoles, compositions containing them, methods of preparing them, and methods for controlling undesired plant growth by preemergent or postemergent application of the herbicidal compositions to the locus where control is desired. The herbicidal compounds have the following generic structure: ##STR1## in which Ar is ##STR2## R is chlorine, cyano, or nitro; R.sup.1 is a group --C(O)CR.sup.11 R.sup.12 --O--R.sup.13 in which R.sup.11 and R.sup.12 are independently hydrogen or alkyl; R.sup.13 is hydrogen, alkylcarbonyl, phenylcarbonyl, phenylmethyl, or alkylaminosulfonyl; R.sup.2 is hydrogen, alkyl, alkylcarbonyl, alkoxycarbonyl, or a group --C(O)CR.sup.11 R.sup.12 --O--R.sup.13 ; R.sup.3, R.sup.4, R.sup.6, R.sup.7 are independently hydrogen or halogen; R.sup.5 is halogen or haloalkyl; R.sup.8 is halogen; R.sup.9 is haloalkyl; R.sup.10 is hydrogen, halogen, or a group --NR.sup.14 R.sup.15 in which R.sup.14 is hydrogen or alkyl; R.sub.
    Type: Grant
    Filed: October 3, 1991
    Date of Patent: December 1, 1992
    Assignee: FMC Corporation
    Inventor: Lester L. Maravetz
  • Patent number: 4919708
    Abstract: Herbicidal 1-aryl-1,2,4-triazolin-5(1H)-ones having a haloalkyl group (e.g. CHF.sub.2, CF.sub.3 or CClF.sub.2) attached to the carbon atom at the 3-position of the triazolinone ring.
    Type: Grant
    Filed: June 26, 1989
    Date of Patent: April 24, 1990
    Assignee: FMC Corporation
    Inventor: Lester L. Maravetz
  • Patent number: 4906287
    Abstract: Herbicidal 2-aryl-1,2,4-triazine-3,5(2H,4H)-diones, the corresponding 2-aryldihydro-1,2,4-triazine-3,5-diones and sulfur analogs of said diones.
    Type: Grant
    Filed: March 5, 1987
    Date of Patent: March 6, 1990
    Assignee: FMC Corporation
    Inventors: John W. Lyga, George Theodoridis, Lester L. Maravetz
  • Patent number: H1942
    Abstract: Novel herbicidal compounds, compositions containing them, and methods for their preparation and use in controlling weeds are disclosed. The novel herbicidal compounds are 3-(pyrazolylphenyl)propanoic acids and derivatives having the formula: wherein X is H or halogen; Y is halogen, trihaloalkyl or cyano; Z and R are halogen; R1 is carboxyl or agriculturally acceptable salt thereof, cyano, alkoxycarbonyl, alkylthiocarbonyl, alkoxyalkoxycarbonyl, aminocarbonyl, alkylaminocarbonyl, dialkylaminocarbonyl, or alkylsulfonylaminocarbonyl; and R2 is hydrogen or lower alkyl.
    Type: Grant
    Filed: September 1, 1998
    Date of Patent: February 6, 2001
    Assignee: FMC Corporation
    Inventors: George Theodoridis, Scott D. Crawford, Lester L. Maravetz
  • Patent number: H1759
    Abstract: It has now been found that certain novel benzyloxyphenyl-substituted heterocycles are useful as pre-emergent and post-emergent herbicides. These compounds are represented by formula I: ##STR1## where Q is 1-substituted-6-trifluoromethyl-2,4(1H,3H)-pyrimidinedion-3 -yl, 4-difluoromethyl-4,5-dihydro-3-methyl-1,2,4-triazol-5(1H)-on-1-yl, 4-halo-5-difluoromethoxy-1-methylpyrazol-3-yl, a 3,4,5,6-tetrahydrophthalimid-1-yl, 8-thia-1,6-diazabicyclo?4.3.0!-nonane-7-on-9-iminoyl, 4-methyl-1,2,4-triazine-3,5-dion-2-yl, 3-chloro-4,5,6,7-tetrahydroindazol-2-yl, 1,4-dihydro-4-(3-fluoropropyl)-5H-tetrazole-5-on-1-yl or a 5,6,7,8-tetrahydro-1,2,4-triazolo-?4,3-a!pyridin-3(2H)-on-2-yl moiety; Z is oxygen, sulfur or CH.sub.2 ; n is 0 or 1, and W, X, Y, R, and R.sup.1 are as described in the specification. Preferred are those compounds where W is oxygen; X is hydrogen or fluoro; Y is methyl or ethyl; n is 1; Z is oxygen; R is methyl; and R.sup.1 is hydroxyalkyl or CH.sub.2 OCONHCH.sub.3.
    Type: Grant
    Filed: May 22, 1998
    Date of Patent: November 3, 1998
    Assignee: FMC Corporation
    Inventors: George Theodoridis, Scott D. Crawford, Lester L. Maravetz, Saroj Sehgel, Dominic Suarez
  • Patent number: H1923
    Abstract: It has now been found that certain novel (oxaalkyl)phenyl-substituted heterocycles are useful as pre-emergent and post-emergent herbicides. These compounds are represented by formula I: ##STR1## where Q is a heterocycle and X, Y, R, R.sup.1, R.sup.2, and R.sup.3 are substituents as described in the specification. Preferred are those compounds where Y and R are chloro; R.sup.1 and R.sup.2 are hydrogen or methyl; R.sup.3 is hydrogen or alkylaminocarbonyl; X is fluorine; and Q is a 1-substituted-6-trifluoromethyl-2,4(1H,3H)-pyrimidinedion-3-yl.
    Type: Grant
    Filed: July 10, 1998
    Date of Patent: November 7, 2000
    Assignee: FMC Corporation
    Inventors: George Theodoridis, Scott D. Crawford, Lester L. Maravetz