Patents by Inventor Edward M. Szapacs

Edward M. Szapacs 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).

  • Dihydropyridazinones and pyridazinones and their use as fungicides and insecticides
    Patent number: 5635494
    Abstract: Compounds with fungicidal and insecticidal properties having formula I ##STR1## wherein W is CH.sub.3 --O-A.dbd.C--CO(V)CH.sub.3 ; n is 0 or 1;A is N or CH;V is O or NH;whereinY is O, S, NR.sub.1, or R.sub.6, the ring bond containing R.sub.4 and R.sub.5 is a single or double bond and R.sub.4 and R.sub.5 are independently selected from hydrogen and substituted or unsubstituted alkyl and aryl groups.
    Type: Grant
    Filed: April 21, 1995
    Date of Patent: June 3, 1997
    Assignee: Rohm and Haas Company
    Inventors: Ronald Ross, Steven H. Shaber, Edward M. Szapacs
  • Heterocyclicacetonitriles and fungicidal use
    Patent number: 5484787
    Abstract: A class of novel heterocyclicacetonitriles which is useful in the control of fungi, especially bitunicate asci and unitunicate asci, has been discovered. These compounds are of the general formula: ##STR1## wherein Ar.sub.1 and Ar.sub.2 are substituted or unsubstituted aryl groups; Het is a six-membered nitrogen-containing heterocyclic ring; n is the integer 2 or 3; and the agronomically acceptable enantiomorphs, acid addition salts and metal complexes thereof.
    Type: Grant
    Filed: November 28, 1994
    Date of Patent: January 16, 1996
    Assignee: Rohm and Haas Company
    Inventors: Steven H. Shaber, Edward M. Szapacs, Charles H. Reynolds
  • Silyl heterocyclic fungicides
    Patent number: 5451563
    Abstract: Fungicidal heterocyclic silyl compounds of the general formula ##STR1## have been discovered wherein Het is a six membered heterocyclic moiety; R is hydrogen or a trisubstituted silyl group; R.sup.1, R.sup.2 and R.sup.3 are independently selected from substituted or unsubstituted alkyl, alkenyl, alkynyl, aryl, arylalkyl or pyridyl groups; m is 0 or 1 and n is zero, one or two.
    Type: Grant
    Filed: March 16, 1994
    Date of Patent: September 19, 1995
    Assignee: Rohm and Haas Company
    Inventors: Steven H. Shaber, Edward M. Szapacs, Reynolds Charles H.
  • Heterocyclicacetonitriles and fungicidal use
    Patent number: 5397793
    Abstract: A class of novel heterocyclicacetonitriles which is useful in the control of fungi, especially bitunicate asci and unitunicate asd, has been discovered. These compounds are of the general formula: ##STR1## wherein Ar.sub.1 and Ar.sub.2 are substituted or unsubstituted aryl groups; Het is a six-membered nitrogen-containing heterocyclic ring; n is the integer 2 or 3; and the agronomically acceptable enantiomorphs, add addition salts and metal complexes thereof.
    Type: Grant
    Filed: November 15, 1993
    Date of Patent: March 14, 1995
    Assignee: Rohm and Haas Company
    Inventors: Steven H. Shaber, Edward M. Szapacs, Charles H. Reynolds
  • Process for the preparation of 3'-halodiphenylethers
    Patent number: 4588487
    Abstract: This process relates to the halodecarboxylation of 3'-carboxydiphenylether salts using diacyl peroxides, molecular bromine, moderate temperature, an inert atmosphere and atmospheric pressure to afford 2-chloro-4-trifluoromethyl-3'-bromo-4'-nitrodiphenylether.
    Type: Grant
    Filed: September 16, 1985
    Date of Patent: May 13, 1986
    Assignee: Rohm and Haas Company
    Inventors: Barry C. Lange, Edward M. Szapacs