Patents by Inventor John Krenzer

John Krenzer 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).

  • Herbicidal compositions containing 1-thiadiazolyl-6-carbamoyloxytetrahydropyrimidinones and methods therefor
    Patent number: 4053298
    Abstract: Disclosed are new compounds of the formula ##STR1## wherein R.sup.1 is selected from the group consisting of alkyl, alkenyl, haloalkyl, alkoxy, alkylthio, alkylsulfonyl and alkylsulfinyl; R.sup.2 is selected from the group consisting of alkyl, alkenyl, haloalkyl and ##STR2## wherein R.sup.3 and R.sup.4 are each selected from the group consisting of hydrogen and alkyl; R.sup.5 is selected from the group consisting of hydrogen and alkyl; and R.sup.6 is selected from the group consisting of alkyl, cycloalkyl and ##STR3## WHEREIN X is selected from the group consisting of alkyl, halogen, haloalkyl and alkoxy, and n is an integer from 0 to 3. The subject compounds are useful as herbicides.
    Type: Grant
    Filed: January 12, 1976
    Date of Patent: October 11, 1977
    Assignee: Velsicol Chemical Corporation
    Inventor: John Krenzer
  • 1-(5-T-BUTYL-1,3,4-THIADIAZOL-2-YL)-3-METHYL-5-OCTANOYLOXY-1,3-IMIDAZOLID IN-2-ONE HERBICIDE
    Patent number: 4052193
    Abstract: This invention discloses the compound 1-(5-t-butyl-1,3,4-thiadiazol-2-yl)-3-methyl-5-octanoyloxy-1,3-imidazolidi n-2-one and its utility as a herbicide.
    Type: Grant
    Filed: March 18, 1976
    Date of Patent: October 4, 1977
    Assignee: Velsicol Chemical Corporation
    Inventor: John Krenzer
  • 1-(5-T-Bu tyl-1,3,4-thiadiazol-2-yl)-3-methyl-5-nonanoyloxy-1,3-imidazolidin-2-one herbicide
    Patent number: 4052192
    Abstract: This invention discloses the compound 1-(5-t-butyl-1,3,4-thiadiazol-2-yl)-3-methyl-5-nonanoyloxy-1,3-imidazolidi n-2-one and its utility as a herbicide.
    Type: Grant
    Filed: March 18, 1976
    Date of Patent: October 4, 1977
    Assignee: Velsicol Chemical Corporation
    Inventor: John Krenzer
  • 1-Thiadiazolyl-5-alkyl- and arylaminoimidazolidinones
    Patent number: 4052191
    Abstract: This invention discloses new compounds of the formula ##STR1## wherein R.sup.1 is selected from the group consisting of alkyl, cycloalkyl, alkenyl, haloalkyl, alkoxy, alkylthio, alkylsulfonyl and alkylsulfinyl; R.sup.2 is selected from the group consisting of alkyl, alkenyl, haloalkyl and ##STR2## wherein R.sup.5 and R.sup.6 are each selected from the group consisting of hydrogen and alkyl; and R.sup.3 and R.sup.4 are each selected from the group consisting of hydrogen, alkyl of up to 18 carbon atoms, alkenyl, haloalkyl, hydroxyalkyl, alkoxyalkyl, cycloalkyl and ##STR3## WHEREIN X is selected from the group consisting of alkyl, alkoxy, halogen, haloalkyl, alkylthio, nitro and cyano; n is an integer from 0 to 3; and m is the integer 0 or 1, provided that a maximum of one of R.sup.3 and R.sup.4 is an aromatic moiety. Further disclosed is the herbicidal utility of the foregoing compounds.
    Type: Grant
    Filed: March 12, 1976
    Date of Patent: October 4, 1977
    Assignee: Velsicol Chemical Corporation
    Inventor: John Krenzer
  • 1-Thiazolyl-5-pyridylcarbonyloxyimidazolidinones
    Patent number: 4046768
    Abstract: This invention discloses new compounds of the formula ##STR1## WHEREIN X is selected from the group consisting of halogen and alkylsulfonyl; R.sup.1 is selected from the group consisting of alkyl, alkenyl, haloalkyl and alkynyl; Z is selected from the group consisting of alkyl and halogen; and n is an integer from 0 to 2.
    Type: Grant
    Filed: June 17, 1976
    Date of Patent: September 6, 1977
    Assignee: Velsicol Chemical Corporation
    Inventors: John Krenzer, Chin Ching Wu
  • Dialkyl acetals of anilinoacetaldehydes
    Patent number: 4046554
    Abstract: This invention discloses new compounds of the formula ##STR1## wherein R.sup.1, R.sup.6 and R.sup.7 are each alkyl; R.sup.2 is selected from the group consisting of hydrogen, alkyl, alkoxy and trifluoromethyl; R.sup.3 and R.sup.4 are each selected from the group consisting of hydrogen, lower alkyl, halogen, cyano, alkoxy, alkylthio, haloalkyl and alkoxyalkyl; R.sup.5 is selected from the group consisting of hydrogen and alkyl; and X is halogen. The compounds of the above description are useful as herbicides.
    Type: Grant
    Filed: April 23, 1976
    Date of Patent: September 6, 1977
    Assignee: Velsicol Chemical Corporation
    Inventor: John Krenzer
  • 1-Benzothiazolyl-5-pyridylcarbonyloxyimidazolidinones
    Patent number: 4045446
    Abstract: This invention discloses new compounds of the formula ##STR1## WHEREIN Z is selected from the group consisting of alkyl, halogen, haloalkyl and alkoxy; p is an integer from 0 to 2; R.sup.1 is selected from the group consisting of alkyl, alkenyl, haloalkyl and ##STR2## wherein R.sup.2 and R.sup.3 are each selected from the group consisting of hydrogen and alkyl; X is selected from the group consisting of alkyl and halogen; and n is an integer from 0 to 4. Further disclosed is the herbicidal utility of the foregoing compounds.
    Type: Grant
    Filed: June 17, 1976
    Date of Patent: August 30, 1977
    Assignee: Velsicol Chemical Corporation
    Inventors: Chin Ching Wu, John Krenzer
  • Thiadiazolyl and cycloimino imidazolidinones
    Patent number: 4043795
    Abstract: This invention discloses new compounds of the formula ##STR1## wherein R.sup.1 is selected from the group consisting of alkyl, cycloalkyl, alkenyl, haloalkyl, alkoxy, alkylthio, alkylsulfonyl and alkylsulfinyl; R.sup.2 is selected from the group consisting of alkyl, alkenyl, haloalkyl and ##STR2## wherein R.sup.3 and R.sup.4 are each selected from the group consisting of hydrogen and alkyl; and m is an integer from 0 to 4.
    Type: Grant
    Filed: March 10, 1976
    Date of Patent: August 23, 1977
    Assignee: Velsicol Chemical Corporation
    Inventor: John Krenzer
  • Herbicidal carbonates and thiocarbonates of thiadiazolyl-2(1H)-pyrimidinones
    Patent number: 4040812
    Abstract: Disclosed are new compounds of the formula ##STR1## wherein R.sup.1 is selected from the group consisting of alkyl, alkenyl, haloalkyl, alkoxy, alkylthio, alkylsulfonyl, alkylsulfinyl and cycloalkyl; R.sup.2 is selected from the group consisting of alkyl, alkenyl, haloalkyl and ##STR2## wherein R.sup.3 and R.sup.4 are each selected from the group consisting of hydrogen and alkyl; Z is selected from the group consisting of oxygen and sulfur; and R.sup.5 is selected from the group consisting of alkyl, haloalkyl, alkenyl, alkynyl, alkoxyalkyl, cycloalkyl and ##STR3## WHEREIN X is selected from the group consisting of alkyl, halogen, haloalkyl, nitro, cyano and alkoxy, and m and n are each integers from 0 to 3. The subject compounds are useful as herbicides.
    Type: Grant
    Filed: June 18, 1975
    Date of Patent: August 9, 1977
    Assignee: Velsicol Chemical Corporation
    Inventor: John Krenzer
  • Herbicidal compositions and methods employing N-.alpha.-chloroacetyl-N-(1,3-dioxan-2-ylmethyl)-2,6-dimethylaniline
    Patent number: 4039314
    Abstract: This invention discloses the compound N-.alpha.-chloroacetyl-N-(1,3-dioxan-2-ylmethyl)-2,6-dimethylaniline and its utility as a herbicide.
    Type: Grant
    Filed: January 5, 1976
    Date of Patent: August 2, 1977
    Assignee: Velsicol Chemical Corporation
    Inventors: Sidney B. Richter, John Krenzer
  • 1-Thiadiazolyl-5-furfuryl and tetrahydrofurfuryl aminoimidazolidinones
    Patent number: 4036848
    Abstract: This invention discloses new compounds of the formula ##STR1## wherein R.sup.1 is selected from the group consisting of alkyl, cycloalkyl, alkenyl, haloalkyl, alkoxy, alkylthio, alkylsulfonyl and alkysulfinyl; R.sup.2 is selected from the group consisting of alkyl, alkenyl, haloalkyl and ##STR2## wherein R.sup.3 and R.sup.4 are each selected from the group consisting of hydrogen and alkyl, and Y is selected from the group consisting of furfuryl and tetrahydrofurfuryl. Further disclosed is the herbicidal utility of the foregoing compounds.
    Type: Grant
    Filed: March 15, 1976
    Date of Patent: July 19, 1977
    Assignee: Velsicol Chemical Corporation
    Inventor: John Krenzer
  • 1-Thiadiazolyl-5-pyridylcarbonyloxyimidazolidinones
    Patent number: 4033753
    Abstract: This invention discloses new compounds of the formula ##STR1## WHEREIN R.sup.1 is selected from the group consisting of alkyl, cycloalkyl, alkenyl, haloalkyl, alkoxy, alkylthio, alkylsulfonyl and alkylsulfinyl; R.sup.2 is selected from the group consisting of alkyl, alkenyl, haloalkyl and ##STR2## wherein R.sup.3 and R.sup.4 are each selected from the group consisting of hydrogen and alkyl; X is selected from the group consisting of alkyl and halogen; and n is an integer from 0 to 3. Further disclosed is the herbicidal utility of the foregoing compounds.
    Type: Grant
    Filed: April 5, 1976
    Date of Patent: July 5, 1977
    Assignee: Velsicol Chemical Corporation
    Inventor: John Krenzer
  • 1-Benzothiazolyl-5-hydroxyimidazolidinones
    Patent number: 4029491
    Abstract: This invention discloses new compounds of the formula ##STR1## wherein X is selected from the group consisting of alkyl, halogen, haloalkyl and alkoxy; n is an integer from 0 to 2; and R.sup.1 is selected from the group consisting of alkyl, alkenyl, haloalkyl and ##STR2## wherein R.sup.2 and R.sup.3 are each selected from the group consisting of hydrogen and alkyl.
    Type: Grant
    Filed: April 29, 1976
    Date of Patent: June 14, 1977
    Assignee: Velsicol Chemical Corporation
    Inventors: John Krenzer, Chin Ching Wu
  • Thiadiazolylimidazolidinones
    Patent number: 4028375
    Abstract: The invention discloses compounds of the formula ##STR1## wherein R.sup.1 is selected from the group consisting of alkyl, alkenyl, haloalkyl, alkoxy, alkylthio, alkylsulfonyl and alkylsulfinyl; and R.sup.2 is selected from the group consisting of alkenyl, haloalkenyl and ##STR2## wherein R.sup.3 and R.sup.4 are selected from the group consisting of hydrogen and alkyl.
    Type: Grant
    Filed: August 5, 1974
    Date of Patent: June 7, 1977
    Assignee: Velsicol Chemical Corporation
    Inventor: John Krenzer
  • Herbicidal 1-thiadiazolyl-5-carbamoyloxyimidazolidinones
    Patent number: 4023957
    Abstract: This invention discloses new compounds of the formula ##STR1## wherein R.sup.1 is selected from the group consisting of alkyl, alkenyl, haloalkyl, alkoxy, alkylthio, alkylsulfonyl and alkylsulfinyl; R.sup.2 is alkyl; R.sup.3 is selected from the group consisting of hydrogen and alkyl; Y is selected from the group consisting of oxygen and sulfur; and R.sup.4 is selected from the group consisting of hydrogen, alkyl, cycloalkyl and ##STR2## WHEREIN X is selected from the group consisting of alkyl, halogen, haloalkyl and alkoxy, and n is an integer from 0 to 5.
    Type: Grant
    Filed: September 10, 1975
    Date of Patent: May 17, 1977
    Assignee: Velsicol Chemical Corporation
    Inventor: John Krenzer
  • N-.alpha.-chloroacetyl-N-(1,3-dioxolan-2-ylme thyl)-2-ethyl-6-methylaniline as a herbicide
    Patent number: 4022608
    Abstract: This invention discloses the compound N-.alpha.-chloroacetyl-N-(1,3-dioxolan-2-ylmethyl)-2-ethyl-6-methylaniline and its utility as a herbicide.
    Type: Grant
    Filed: December 17, 1975
    Date of Patent: May 10, 1977
    Assignee: Velsicol Chemical Corporation
    Inventors: Sidney B. Richter, John Krenzer
  • 1-(5-Trifluoromethyl-1, 3,4-thiadiazol-2-yl)-3-methyl-5-acetyloxy-1,3-imidazolidin-2-one
    Patent number: 4021439
    Abstract: This invention discloses the compound 1-(5-trifluoromethyl-1,3,4-thiadiazol-2-yl)-3-methyl-5-acetyloxy-1,3-imida zolidin-2-one and its utility as a herbicide.
    Type: Grant
    Filed: April 30, 1975
    Date of Patent: May 3, 1977
    Assignee: Velsicol Chemical Corporation
    Inventor: John Krenzer
  • 1-Thiadiazolyl-5-acylimidazolidinones
    Patent number: 4018787
    Abstract: This invention discloses new compounds of the formula ##STR1## wherein R.sup.1 is selected from the group consisting of butyl, pentyl, hexyl and trifluoromethyl; R.sup.2 is selected from the group consisting of alkyl, alkenyl, haloalkyl and ##STR2## wherein R.sup.4 and R.sup.5 are each selected from the group consisting of hydrogen and alkyl; and R.sup.3 is selected from the group consisting of alkyl, alkenyl, haloalkyl, alkynyl, alkoxyalkyl, cycloalkyl and ##STR3## WHEREIN X is selected from the group consisting of alkyl, alkoxy, halogen, haloalkyl, alkylthio, nitro and cyano; n is an integer from 0 to 3; and m is the integer 0 or 1; provided that when R.sup.3 is methyl, then R.sup.2 is haloalkyl or contains at least 2 carbon atoms. Further disclosed is the herbicidal utility of the foregoing compounds.
    Type: Grant
    Filed: June 13, 1975
    Date of Patent: April 19, 1977
    Assignee: Velsicol Chemical Corporation
    Inventor: John Krenzer
  • Herbicidal compositions containing dioxolane substituted anilids and method therefor
    Patent number: 4012222
    Abstract: This invention discloses new compounds of the formula ##STR1## wherein Y is selected from the group consisting of hydrogen, lower alkyl and halogen; R.sup.1 is selected from the group consisting of hydrogen, lower alkyl and lower alkoxy; R.sup.2 is lower alkyl; R.sup.3 and R.sup.4 are independently selected from the group consisting of hydrogen and lower alkyl; X is halogen; and n is the integer 1 or 2. The compounds of the above description are useful as herbicides.
    Type: Grant
    Filed: January 5, 1976
    Date of Patent: March 15, 1977
    Assignee: Velsicol Chemical Corporation
    Inventors: Sidney B. Richter, John Krenzer
  • Thiadiazolylimidazolidinones herbicides
    Patent number: 4012223
    Abstract: The invention discloses compounds of the formula ##STR1## wherein R.sup.1 is cycloalkyl of from 3 to 7 carbon atoms optionally substituted with alkyl, alkoxy, halogen or hydroxy, and R.sup.2 is alkyl.
    Type: Grant
    Filed: August 28, 1975
    Date of Patent: March 15, 1977
    Assignee: Velsicol Chemical Corporation
    Inventor: John Krenzer