Patents by Inventor Steven W. Szczepanski

Steven W. Szczepanski 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).

  • Publication number: 20120022072
    Abstract: Disclosed herein are analogs of tetrahydrobiopterin, compositions containing the same, and methods of treating an individual suffering from a condition responsive to tetrahydrobiopterin by administration of the analog. These analogs are contemplated for use wherever tetrahydrobiopterin is currently used to treat conditions responsive to tetrahydrobiopterin therapies.
    Type: Application
    Filed: September 16, 2011
    Publication date: January 26, 2012
    Applicant: BIOMARIN PHARMACEUTICAL INC.
    Inventors: Emil D. Kakkis, Erik Foehr, Sianna Castillo, Steven W. Szczepanski, Paul John Kostel
  • Patent number: 7977332
    Abstract: Certain noel N-(heteroarylalkyl)alkanediamine derivatives have provided unexpected insecticidal and acaricidal activity. These compounds are represented by formula I: wherein Ar, a, r, R, Ra, Rb, Rc, Rd, b, c, Re, Rf, Rg, Rh, R5, d, e, U, V, X, WR6 and R7 are fully described herein. In addition, compositions comprising an insecticidally effective amount of at least one compound of formula I, and optionally, an effective amount of at least one of a second compound, with at least one insecticidally compatible carrier are also disclosed; along with methods of controlling insects comprising applying said compositions to a locus where insects are present or are expected to be present.
    Type: Grant
    Filed: December 2, 2004
    Date of Patent: July 12, 2011
    Assignee: FMC Corporation
    Inventors: David M. Roush, John F. Chiarello, Jianming Yu, Benjamin J. Dugan, George Theodoridis, Manorama M. Patel, Walter H. Yeager, Steven W. Szczepanski
  • Publication number: 20110065710
    Abstract: Certain noel N-(heteroarylalkyl)alkanediamine derivatives have provided unexpected insecticidal and acaricidal activity. These compounds are represented by formula I: wherein Ar, a, r, R, Ra, Rb, Rc, Rd, b, c, Re, Rf, Rg, Rh, R5, d, e, U, V, X, WR6 and R7 are fully described herein. In addition, compositions comprising an insecticidally effective amount of at least one compound of formula I, and optionally, an effective amount of at least one of a second compound, with at least one insecticidally compatible carrier are also disclosed; along with methods of controlling insects comprising applying said compositions to a locus where insects are present or are expected to be present.
    Type: Application
    Filed: December 2, 2004
    Publication date: March 17, 2011
    Inventors: David M. Roush, John F. Chiarello, Jianming Yu, Benjamin J. Dugan, George Theodoridis, Manorama M. Patel, Walter H. Yeager, Steven W. Szczepanski
  • Publication number: 20100016328
    Abstract: Disclosed herein are analogs of tetrahydrobiopterin, compositions containing the same, and methods of treating an individual suffering from a condition responsive to tetrahydrobiopterin by administration of the analog. These analogs are contemplated for use wherever tetrahydrobiopterin is currently used to treat conditions responsive to tetrahydrobiopterin therapies.
    Type: Application
    Filed: July 9, 2009
    Publication date: January 21, 2010
    Applicant: BioMarin Pharmaceutical, Inc.
    Inventors: Emil D. KAKKIS, Erik FOEHR, Sianna CASTILLO, Steven W. SZCZEPANSKI, Paul John KOSTEL
  • Patent number: 6214845
    Abstract: Compounds of the following structure, the corresponding N-oxides and agriculturally acceptable salts, are disclosed as effective insecticides: in which U is —(CH2)n—; Q is hydroxy; R is in which V, W, Y, and Z are each hydrogen; X is a five- or six-membered heterocycle; optionally substituted with halogen, cyano, alkyl, haloalkyl, alkoxy, haloalkoxy, alkoxyalkyl, haloalkoxyalkyl, or aminocarbonyl; and the heterocycle is optionally connected to the phenyl ring through a —O—, —S—, —(CH2)p, —C(O)—, or —O—(CR3R4)q linkage; R1 and R2 are independently selected from phenyl or pyridyl substituted with haloalkyl or haloalkoxy; R3 and R4 are independently selected from hydrogen and methyl; n and p are independently 1, 2, or 3; and q is 1 or 2; with the proviso that at least one of R1 and R2 is substituted in the para position; no more than two of R3 and R4 are methyl; each aliphatic moiety contains not more t
    Type: Grant
    Filed: September 2, 1999
    Date of Patent: April 10, 2001
    Assignee: FMC Corporation
    Inventors: Ian R. Silverman, Daniel H. Cohen, John W. Lyga, Steven W. Szczepanski, Syed F. Ali, Thomas G. Cullen, Robert N. Henrie, II, Clinton J. Peake
  • Patent number: 6184234
    Abstract: Compounds of the following structure, the corresponding N-oxides and agriculturally acceptable salts thereof, are disclosed as effective insecticides: wherein U is —(CH2)n—; Q is hydroxy; and R is: and wherein V, W, Y, and Z are each hydrogen; X is a five- or six-membered heterocycle; optionally substituted with bromine, chlorine, fluorine, cyano, alkyl, haloalkyl, alkoxy, haloalkoxy, alkoxyalkyl, haloalkoxyalkyl, or aminocarbonyl; and the heterocycle is optionally connected to the phenyl ring through a —O—, —S—, —(CH2)p, —C(O)—, or —O—(CR3R4)q linkage; R1 and R2 are independently selected from phenyl or pyridyl substituted with pentahalothio, haloalkylthio, haloalkylsulfinyl, or haloalkylsulfonyl; phenyl substituted with —OC(M)2O—, where M is bromine, chorine or fluorine, to provide a dihalobenzodioxolyl fused ring; or pyridyl substituted with —OC(M)2O— to provide a dihalodioxol
    Type: Grant
    Filed: October 7, 1999
    Date of Patent: February 6, 2001
    Assignee: FMC Corporation
    Inventors: Ian R. Silverman, Daniel H. Cohen, John W. Lyga, Steven W. Szczepanski, Syed F. Ali, Thomas G. Cullen, Robert N. Henrie, II, Clinton J. Peake
  • Patent number: 6030987
    Abstract: Compounds of structure (I) ##STR1## the corresponding N-oxides and agriculturally acceptable salts are disclosed as effective insecticides. In said formula, U is --(CH.sub.2)n--; Q is hydroxy, R is formula (II) ##STR2## in which V, W, Y and Z are hydrogen; X is a five- or six-membered heterocycle optionally substituted; and the heterocycle is optionally connected to the phenyl ring through a --O--, --S-- --CH.sub.2)p--, or --O(CR.sup.3 R.sup.4)q linkage; R.sup.1 and R.sup.2 are independently selected from phenyl or pyridyl substituted with haloalkyl or haloalkoxy; R.sup.3, R.sup.4, n, p, and 1 are as defined in the specification.
    Type: Grant
    Filed: August 11, 1998
    Date of Patent: February 29, 2000
    Assignee: FMC Corporation
    Inventors: Ian R. Silverman, Daniel H. Cohen, John W. Lyga, Steven W. Szczepanski, Syed F. Ali, Thomas G. Cullen, Robert N. Henrie, II, Clinton J. Peake
  • Patent number: 6017931
    Abstract: Compositions containing compounds of the following structure, some of which are novel, and the corresponding N-oxides and agriculturally acceptable salts, are disclosed as effective insecticides: ##STR1## in which U is --(CH.sub.2).sub.n --;Q is hydroxy;R is ##STR2## in which V, W, and Z are each hydrogen; X is selected from alkoxy, haloalkoxy, alkoxyalkyl, cycloalkylalkoxy, halocycloalkylalkoxy, alkoxycarbonyl, haloalkoxycarbonyl, cycloalkylalkoxycarbonyl, halocycloalkylalkoxycarbonyl, alkoxyalkoxycarbonyl, alkoxycarbonylamino, haloalkoxycarbonylamino, cycloalkylalkoxycarbonylamino, halocycloalkylalkoxycarbonylamino, alkylaminocarbonyl, haloalkylaminocarbonyl, cyanoalkoxycarbonylamino, phenylcarbonylamino, and phenoxycarbonyl, each cycloalkyl moiety or phenyl ring optionally substituted with halogen; Y is selected from hydrogen and halogen; n is 1, 2, or 3; R.sup.1 and R.sup.
    Type: Grant
    Filed: August 30, 1996
    Date of Patent: January 25, 2000
    Assignee: FMC Corporation
    Inventors: Ian R. Silverman, Daniel H. Cohen, John W. Lyga, Steven W. Szczepanski, Syed F. Ali
  • Patent number: 5795901
    Abstract: Compounds of the following structure are disclosed as effective insecticides: ##STR1## in which Q is hydroxy; U is --(CH.sub.2).sub.n --, where n is 1; R is ##STR2## in which V, W, Y, and Z are each hydrogen; X is alkoxy, cycloalkylalkoxy, alkoxycarbonyl, alkoxycarbonylamino, or a five- or six-membered heteroaryl or heteroaryloxy, each heteroaryl optionally substituted with halogen, cyano, alkyl, haloalkyl, alkoxy, haloalkoxy, alkoxyalkyl, or haloalkoxyalkyl; R.sup.1 and R.sup.2 are independently selected from haloalkyl; phenyl substituted with halogen, halothio, haloalkyl, or haloalkoxy; or a five- or six-membered heteroaryl substituted with halogen or haloalkyl; R.sup.
    Type: Grant
    Filed: May 6, 1997
    Date of Patent: August 18, 1998
    Assignee: FMC Corporation
    Inventor: Steven W. Szczepanski
  • Patent number: 5639763
    Abstract: Compounds of the following structure, the corresponding N-oxides and agriculturally acceptable salts, are disclosed as effective insecticides: ##STR1## in which U is selected from --(CH.sub.2).sub.n -- and ethylidene; Q is selected from hydrogen, hydroxy, sulfhydryl, and fluorine; R is ##STR2## in which V is selected from hydrogen, halogen, alkyl, haloalkyl, alkoxy, alkylthio, alkylsulfinyl, alkylsilyloxy, dialkylamino, cyano, nitro, hydroxy, and phenyl; Y and Z are independently selected from hydrogen and alkoxy; W and X taken together is --OCH.sub.2 CH.sub.2 O--, --CH.sub.2 C(CH.sub.3).sub.2 O--, --OC(CH.sub.3).sub.2 O--, or --N.dbd.C(C.sub.2 H.sub.5)O--; R.sup.1 and R.sup.2 are independently selected from phenyl substituted with halogen, alkyl, haloalkyl, haloalkoxy, alkoxyalkyl, hydroxy, arylthio, alkoxy, dialkylamino, dialkylaminosulfonyl, hydroxyalkylaminocarbonyl, alkylsulfonyloxy, and haloalkylsulfonyloxy; and n is 1, 2, or 3.
    Type: Grant
    Filed: February 16, 1995
    Date of Patent: June 17, 1997
    Assignee: FMC Corporation
    Inventors: Ian R. Silverman, Daniel H. Cohen, John W. Lyga, Steven W. Szczepanski, Syed F. Ali
  • Patent number: 5569664
    Abstract: Compounds of the following structure, the corresponding N-oxides and agriculturally acceptable salts, are disclosed as effective insecticides: ##STR1## in which U is selected from ##STR2## Q is selected from hydrogen, hydroxy, sulfhydryl, and fluorine; R is selected from a heterocycle having 5 or 6 ring atoms, optionally fused to a benzene ring, and ##STR3## wherein V, W, X, Y, Z are as defined in the specification.
    Type: Grant
    Filed: May 19, 1995
    Date of Patent: October 29, 1996
    Assignee: FMC Corporation
    Inventors: Ian R. Silverman, Daniel H. Cohen, John W. Lyga, Steven W. Szczepanski, Syed F. Ali