Patents by Inventor Alan W. Fritz

Alan W. Fritz 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).

  • Insecticidal cyclopropyl di(aryl) 2-butenes
    Patent number: 4975451
    Abstract: Compounds of the formula ##STR1## in which Ar is substituted or unsubstituted phenyl, naphthyl, or thienyl; and Ar.sup.1 is 3-phenoxyphenyl, 4-fluoro-3-phenoxyphenyl, 2-methyl[1-1'-biphenyl]-3-yl, or 6-phenoxy-2-pyridyl, exhibit pyrethroid-like insecticidal and acaricidal activity and are relatively nontoxic to fish.
    Type: Grant
    Filed: March 2, 1989
    Date of Patent: December 4, 1990
    Assignee: FMC Corporation
    Inventors: Thomas G. Cullen, Scott McN. Sieburth, Gary A. Meier, John F. Engel, Leslie W. Stratton, Alan W. Fritz
  • Process for preparing (s)-3-amino-2-oxo-1-azetidinesulfonic acid salts
    Patent number: 4625022
    Abstract: The process of this invention provides for the conversion of amino acid amides having the formula ##STR1## to 3-amino-2-oxo-1-azetidinesulfonic acid salts having the formula ##STR2## wherein one of R.sub.2 and R.sub.3 is hydrogen and the other is hydrogen, alkyl, cycloalkyl, phenyl or substituted phenyl and M.sup..sym. is hydrogen or a cation.
    Type: Grant
    Filed: November 15, 1985
    Date of Patent: November 25, 1986
    Assignee: E. R. Squibb & Sons, Inc.
    Inventors: David M. Floyd, Alan W. Fritz, Christopher M. Cimarusti
  • Process for preparing (3S)-3-[[(2-amino-4-thiazolyl)[(1-carboxy-1-methylethoxy)imino]-acetyl]a mino]-2-oxo-1-azetidinesulfonic acid, and 4-substituted derivatives
    Patent number: 4443374
    Abstract: Disclosed herein is a process for preparing a compound having the formula ##STR1## which comprises coupling a compound having the formula ##STR2## or a salt thereof, with a compound having the formula ##STR3## to obtain a compound having the formula ##STR4## reacting that compound with 2-aminooxy-2-methylpropanoic acid, or a salt thereof, to obtain a compound having the formula ##STR5## and, if R is an amino protecting group, deprotecting that compound to yield the desired product; whereinR is hydrogen or an amino protecting group;R.sub.1 is hydrogen, methyl or ethyl;M.sup..sym. is an inorganic cation or a substituted ammonium ion; andM.sub.1.sup..sym. is hydrogen, an inorganic cation or a substituted ammonium ion.
    Type: Grant
    Filed: February 1, 1982
    Date of Patent: April 17, 1984
    Assignee: E. R. Squibb & Sons, Inc.
    Inventors: Christopher M. Cimarusti, Rita T. Fox, Alan W. Fritz, William H. Koster, Jerome L. Moniot
  • Sulfamated amino acid amides
    Patent number: 4386034
    Abstract: The process of this invention provides for the conversion of amino acid amides having the formula ##STR1## to 3-amino-2-oxo-1-azetidinesulfonic acid salts having the formula ##STR2## wherein one of R.sub.2 and R.sub.3 is hydrogen and the other is hydrogen, alkyl, cycloalkyl, phenyl or substituted phenyl and M.sup..sym. is hydrogen or a cation.
    Type: Grant
    Filed: February 10, 1982
    Date of Patent: May 31, 1983
    Assignee: E. R. Squibb & Sons, Inc.
    Inventors: David M. Floyd, Alan W. Fritz, Christopher M. Cimarusti