Patents by Inventor Stanley A. Greenfield

Stanley A. Greenfield 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).

  • 4-alkyl-1,2,4-4H-triazole derivatives
    Patent number: 4271308
    Abstract: Substituted 1,2,4-4H-triazoles of the formula ##STR1## wherein R.sup.1 and R.sup.2 are hydrogen atoms and R.sup.3 is alkyl, alkenyl, alkynyl, cycloalkyl benzyl or phenyl. These compounds are fungicides and are particularly useful for the control of cereal rust.
    Type: Grant
    Filed: June 14, 1979
    Date of Patent: June 2, 1981
    Assignee: Rohm and Haas Company
    Inventors: Michael C. Seidel, William C. von Meyer, Stanley A. Greenfield
  • Formaldehyde stabilized coating compositions
    Patent number: 4165318
    Abstract: Coating compositions which contain a mildew-controlling amount of an isothiazolone are stabilized against chemical decomposition of the isothiazolone by the addition of formaldehyde or a compound which releases formaldehyde under basic conditions.
    Type: Grant
    Filed: September 18, 1978
    Date of Patent: August 21, 1979
    Assignee: Rohm and Haas Company
    Inventors: Stanley A. Greenfield, John A. Dupont
  • Formaldehyde stabilized coating compositions
    Patent number: 4129448
    Abstract: Coating compositions which contain a mildew-controlling amount of an isothiazolone are stabilized against chemical decomposition of the isothiazolone by the addition of formaldehyde or a compound which releases formaldehyde under basic conditions.
    Type: Grant
    Filed: September 6, 1977
    Date of Patent: December 12, 1978
    Assignee: Rohm and Haas Company
    Inventors: Stanley A. Greenfield, John A. Dupont
  • 1,2,4-4H-triazole derivatives
    Patent number: 4120864
    Abstract: Substituted 1,2,4-4H-triazoles of the formula ##STR1## wherein A is a variety of groups including alkyl, --C(O)R.sup.4, --CH(OH)CCl.sub.3 and substituted benzyl and phenyl and R.sup.8 is alkyl. These compounds are fungicides and are particularly useful for the control of cereal rusts.
    Type: Grant
    Filed: June 30, 1972
    Date of Patent: October 17, 1978
    Assignee: Rohm and Haas Company
    Inventors: Michael C. Seidel, William C. VON Meyer, Stanley A. Greenfield
  • Plasma light source for spectroscopic investigation
    Patent number: RE29304
    Abstract: A plasma of annular form is produced by passing a gas stream along the axis of a coil carrying high frequency-alternating current and a sample is injected through a low temperature central region of the plasma annulus into the tail flame and the resulting spectrum of the plasma is examined.
    Type: Grant
    Filed: November 3, 1975
    Date of Patent: July 12, 1977
    Assignees: Raydne Limited, Albright & Wilson (Mfg.) Limited
    Inventors: Stanley Greenfield, Iorwerth Llewelyn William Jones, Christopher Thomas Berry