Patents by Inventor Karl Leopold Krumel

Karl Leopold Krumel 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).

  • Process to produce halo-4-phenoxyquinolines
    Publication number: 20040044217
    Abstract: The present invention relates to a process for the preparation of halo-4-phenoxyquinolines.
    Type: Application
    Filed: June 30, 2003
    Publication date: March 4, 2004
    Inventors: Karl Leopold Krumel, Ruth Cezar Reed, Thomas A. Olmstead, Gary Alan Roth, Ian Robert King, Donald Neil Brattesani, Kent Douglas Campbell, John Davies
  • Selective electrochemical reduction of halogenated 4-aminopicolinic acids
    Patent number: 6352635
    Abstract: Halogen substituents in the 5-position of 4-aminopicolinic acids are selectively reduced in the presence of halogen substituents in the 3- and 6-positions by electrolysis.
    Type: Grant
    Filed: January 12, 2001
    Date of Patent: March 5, 2002
    Assignee: Dow AgroSciences LLC
    Inventors: Karl Leopold Krumel, Craig Joseph Bott, Michael Frederick Gullo, Carey Lee Scortichini, John Wesley Hull, Jr.
  • Selective electrochemical reduction of halogenated 4-aminopicolinic acids
    Publication number: 20010054559
    Abstract: Halogen substituents in the 5-position of 4-aminopicolinic acids are selectively reduced in the presence of halogen substituents in the 3- and 6-positions by electrolysis.
    Type: Application
    Filed: January 12, 2001
    Publication date: December 27, 2001
    Inventors: Karl Leopold Krumel, Craig Joseph Bott, Michael Frederick Gullo, Carey Lee Scortichini, John Wesley Hull
  • 4-aminopicolinates and their use as herbicides
    Publication number: 20010047099
    Abstract: 4-Aminopicolinic acids, having halogen, alkoxy, alkylthio, aryloxy, heteroaryloxy or trifluoromethyl substituents in the 3-, 5- and 6-positions, and their amine and acid derivatives are potent herbicides demonstrating a broad spectrum of weed control.
    Type: Application
    Filed: January 12, 2001
    Publication date: November 29, 2001
    Inventors: Stephen Craig Fields, Anita Lenora Alexander, Terry William Balko, Leslie Anne Bjelk, Ann Marie Buysse, Renee Joan Keese, Karl Leopold Krumel, William Chi-Leung Lo, Christian Thomas Lowe, John Sanders Richburg, James Melvin Ruiz
  • 4-aminopicolinates and their use as herbicides
    Patent number: 6297197
    Abstract: 4-Aminopicolinic acids, having halogen, alkoxy, alkylthio, aryloxy, heteroaryloxy or trifluoromethyl substituents in the 3-, 5- and 6-positions, and their amine and acid derivatives are potent herbicides demonstrating a broad spectrum of weed control.
    Type: Grant
    Filed: January 12, 2001
    Date of Patent: October 2, 2001
    Assignee: Dow AgroSciences LLC
    Inventors: Stephen Craig Fields, Anita Lenora Alexander, Terry William Balko, Leslie Anne Bjelk, Ann Marie Buysse, Renee Joan Keese, Karl Leopold Krumel, William Chi-Leung Lo, Christian Thomas Lowe, John Sanders Richburg, III, James Melvin Ruiz