Patents by Inventor Gerhart Schneider

Gerhart Schneider 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: 4944791
    Abstract: Novel cycloalkane-5.dbd.-spiro-hydantoins of formula ##STR1## wherein A is selected from the group consisting of ##STR2## and the remaining substituents are defined below having strong, selective herbicidal activity and novel intermediates and a process for their preparation.
    Type: Grant
    Filed: December 14, 1988
    Date of Patent: July 31, 1990
    Assignee: Shell Internationale Research Maatschappij B.V.
    Inventors: Ludwig Schroder, Werner Stransky, Rudolf Mengel, Erich Raddatz, Sigmund Lust, Gerbert Linden, Gerhart Schneider
  • Patent number: 4842776
    Abstract: Styrylaryloxy ether sulfonates of the formula ##STR1## in which either R.sub.1 denotes styryl and simultaneously R.sub.2 and R.sub.3 are identical or different and denote hydrogen or styryl, or R.sub.1 and R.sub.2 are nonidentical and each denote methyl or styryl and simultaneously R.sub.3 denotes hydrogen or styryl, x denotes a number from 2 to 20, and M denotes an ammonium or alkali metal cation. These compounds are suitable as surfactant auxiliaries in oil recovery.
    Type: Grant
    Filed: October 22, 1987
    Date of Patent: June 27, 1989
    Assignee: Hoechst Aktiengesellschaft
    Inventors: Manfred Schmidt, Walter Rupp, Gerhart Schneider, Eva M. Kohn
  • Patent number: 4826528
    Abstract: This invention relates to sulfonylureas of the formula ##STR1## These compounds are useful in killing weeds and in regulating the growth of cultivated plants.
    Type: Grant
    Filed: June 20, 1985
    Date of Patent: May 2, 1989
    Assignee: Celamerck GmbH & Co. KG.
    Inventors: Rudolf Mengel, W. Pfleiderer, Gerbert Linden, Gerhart Schneider
  • Patent number: 4723989
    Abstract: Compounds of the formula ##STR1## wherein R.sub.1, R.sub.2, R.sub.3, R.sub.4, R.sub.9 and R.sub.10 have diverse meanings. They are useful as herbicides.
    Type: Grant
    Filed: December 18, 1986
    Date of Patent: February 9, 1988
    Assignee: Celarmerck GmbH & Co. KG
    Inventors: Wolfgang Buck, Manfred Garrecht, Gerhart Schneider, Christo Drandarevski
  • Patent number: 4600516
    Abstract: Sulfonated tributylphenol ethoxylates of the formula ##STR1## where x denotes a number from 2 to 20, and M denotes a cation, their use as surfactants, in particular as auxiliaries in the tertiary production of crude oil, and an improved, general process for preparing sulfonated alkyl and (alkyl)aryl polyalkoxylates by reacting halides of alkyl and (alkyl)aryl polyethoxylates with alkali metal sulfite by carrying out the reaction in the presence of lower alcohols, polyols, monoethylene glycol, polyethylene glycol or alkyl ethers thereof, as solubilizing agents.
    Type: Grant
    Filed: February 15, 1984
    Date of Patent: July 15, 1986
    Assignee: Hoechst Aktiengesellschaft
    Inventors: Norbert Wester, Klaus Uhl, Walter Gulden, Gerhart Schneider
  • Patent number: 4523945
    Abstract: Compounds of the formula ##STR1## wherein R', R", R.sub.1, R.sub.2, X.sub.1, X.sub.2, Y.sub.1, Y.sub.2 and Z are variable substituents of different types. The compounds are useful as herbicides and microbicides.
    Type: Grant
    Filed: February 14, 1984
    Date of Patent: June 18, 1985
    Assignee: Celamerck, Gesellschaft mit beschrankter Haftung & Co. KG
    Inventors: Rudolf Mengel, Ludwig Schroder, Werner Stransky, Gerbert Linden, Gerhart Schneider, Sigmund Lust
  • Patent number: 4509972
    Abstract: Compounds of the formula ##STR1## wherein R, R.sub.1, R.sub.2 and R.sub.3 are substituents of diverse types, and salts thereof. The compounds as well as their salts are useful as herbicides.
    Type: Grant
    Filed: March 28, 1983
    Date of Patent: April 9, 1985
    Assignee: Celamerck GmbH & Co. KG
    Inventors: Rudolf Mengel, Ludwig Schroder, Werner Stransky, Gerbert Linden, Gerhart Schneider, Sigmund Lust
  • Patent number: 3973944
    Abstract: 3-Cyano-4-phenyl-5-dimethylaminomethylene-5H-furanone-(2) and compositions containing the same, are useful for controlling the growth of undesirable pest plant growth, e.g., algae, weeds and undesirable grasses, when applied to the locus to be protected.
    Type: Grant
    Filed: December 15, 1970
    Date of Patent: August 10, 1976
    Assignee: Merck Patent Gesellschaft mit beschrankter Haftung
    Inventors: Dietrich Erdmann, Gerhart Schneider, Wolfgang Koch
  • Patent number: 3957670
    Abstract: Inorganic per-compounds-containing oxidizing, bleaching and washing compositions having a content of acylated oxamides as activators for the inorganic per-compounds. Said activators permit better utilization of the active oxygen while securing good stability to storage.
    Type: Grant
    Filed: December 4, 1974
    Date of Patent: May 18, 1976
    Assignee: Hoechst Aktiengesellschaft
    Inventors: Klaus Uhl, Hermann Schmadel, Gerhart Schneider, Eckhard Milewski
  • Patent number: 3957863
    Abstract: New compounds of the general formula II ##EQU1## in which one or two of the radicals R.sub.i (i = 1 to 7) stands for a linear or branched alkyl or alkenyl radical of 8 to 18 carbon atoms, one or two of the radicals R.sub.m (m = 2 to 6, m being .noteq. i) stands for the radical of the formula A ##EQU2## and the other radicals R.sub.k (k = 1 to 7, k being .noteq. i, m) stand for hydrogen or methyl, Y stands for hydrogen or an alkali metal ion, n is 2 or 3 and o and p are 0 or 1, their use as anti-microbially active surfactants in washing and cleansing compositions and disinfectants, and a process for preparing those compounds of formula II.
    Type: Grant
    Filed: November 12, 1974
    Date of Patent: May 18, 1976
    Assignee: Hoechst Aktiengesellschaft
    Inventors: Helmut Diery, Elmar Schrinner, Kurd Gunther, Gerhart Schneider
  • Patent number: 3940340
    Abstract: Peracylated aliphatic polyamines are useful as activators for inorganic peroxo compounds, i.e., they set free the available oxygen of the peroxo compounds in aqueous solutions at temperatures below 80.degree.C and are thus useful as additives to detergents especially inasmuch as they are compatible with usual detergent brighteners.
    Type: Grant
    Filed: January 7, 1974
    Date of Patent: February 24, 1976
    Assignee: Hoechst Aktiengesellschaft
    Inventors: Hans Walter Bucking, Peter Hess, Franz Konig, Wilfried Sahm, Gerhart Schneider