Patents by Inventor Steven L. Evans

Steven L. Evans 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).

  • Herbicidally-active fatty acid salts
    Patent number: 5948731
    Abstract: The subject invention pertains to novel methods and compositions utilizing novel fatty acid salts which exhibit excellent herbicidal activity in controlling unwanted vegetation. The novel compositions and methods described here facilitate effective weed control using a water soluble salt of a fatty acid.
    Type: Grant
    Filed: October 31, 1997
    Date of Patent: September 7, 1999
    Assignee: Mycogen Corporation
    Inventors: Steven L. Evans, John Harvey, Yasuko Tsujino
  • Process and composition for controlling weeds
    Patent number: 5703011
    Abstract: Described and claimed are methods and compositions for the control of unwanted vegetation. According to the subject invention, a fatty acid or mixture of fatty acids can be combined with one or more chemical herbicides to achieve synergistic control of a broad range of plants.
    Type: Grant
    Filed: June 6, 1995
    Date of Patent: December 30, 1997
    Assignee: Mycogen Corporation
    Inventors: Jerry Caulder, R. Hugh Crowley, Paul S. Zorner, Steven L. Evans
  • Herbicidally-Active fatty acid allphatic amine salts
    Patent number: 5703019
    Abstract: The subject invention pertains to novel methods and compositions utilizing novel fatty acid salts which exhibit excellent herbicidal activity in controlling unwanted vegetation. The novel compositions and methods described here facilitate effective weed control using a water soluble aliphatic amine salt of a fatty acid.
    Type: Grant
    Filed: June 2, 1995
    Date of Patent: December 30, 1997
    Assignee: Mycogen Corporation
    Inventors: Steven L. Evans, John Harvey, Yasuko Tsujino
  • Process and composition for controlling weeds
    Patent number: 5703012
    Abstract: Described and claimed are methods and compositions for the control of unwanted vegetation. According to the subject invention, a fatty acid or mixture of fatty acids can be combined with one or more chemical herbicides to achieve synergistic control of a broad range of plants.
    Type: Grant
    Filed: June 6, 1995
    Date of Patent: December 30, 1997
    Assignee: Mycogen Corporation
    Inventors: Jerry Caulder, R. Hugh Crowley, Paul S. Zorner, Steven L. Evans
  • Process and composition for controlling weeds
    Patent number: 5703013
    Abstract: Described and claimed are methods and compositions for the control of unwanted vegetation. According to the subject invention, a fatty acid or mixture of fatty acids can be combined with one or more chemical herbicides to achieve synergistic control of a broad range of plants.
    Type: Grant
    Filed: June 7, 1995
    Date of Patent: December 30, 1997
    Assignee: Mycogen Corporation
    Inventors: Jerry Caulder, R. Hugh Crowley, Paul S. Zorner, Steven L. Evans
  • Process and composition for controlling weeds
    Patent number: 5703014
    Abstract: Described and claimed are methods and compositions for the control of unwanted vegetation. According to the subject invention, a fatty acid or mixture of fatty acids can be combined with one or more chemical herbicides to achieve synergistic control of a broad range of plants.
    Type: Grant
    Filed: June 6, 1995
    Date of Patent: December 30, 1997
    Assignee: Mycogen Corporation
    Inventors: Jerry Caulder, R. Hugh Crowley, Paul S. Zorner, Steven L. Evans
  • Process and composition for controlling weeds comprising a C.sub.7 -C.sub.2 0
    Patent number: 5700759
    Abstract: Described and claimed are methods and compositions for the control of unwanted vegetation. According to the subject invention, a fatty acid or mixture of fatty acids can be combined with one or more chemical herbicides to achieve synergistic control of a broad range of plants.
    Type: Grant
    Filed: June 7, 1995
    Date of Patent: December 23, 1997
    Assignee: Mycogen Corporation
    Inventors: Jerry Caulder, R. Hugh Crowley, Paul S. Zorner, Steven L. Evans
  • Process and composition for controlling weeds
    Patent number: 5683959
    Abstract: Described and claimed are methods and compositions for the control of unwanted vegetation. According to the subject invention, a fatty acid or mixture of fatty acids can be combined with one or more chemical herbicides to achieve synergistic control of a broad range of plants.
    Type: Grant
    Filed: June 6, 1995
    Date of Patent: November 4, 1997
    Assignee: Mycogen Corporation
    Inventors: Jerry Caulder, R. Hugh Crowley, Paul S. Zorner, Steven L. Evans
  • Process and composition for controlling weeds
    Patent number: 5683962
    Abstract: Described and claimed are methods and compositions for the control of unwanted vegetation. According to the subject invention, a fatty acid or mixture of fatty acids can be combined with one or more chemical herbicides to achieve synergistic control of a broad range of plants.
    Type: Grant
    Filed: June 7, 1995
    Date of Patent: November 4, 1997
    Assignee: Mycogen Corporation
    Inventors: Jerry Caulder, R. Hugh Crowley, Paul S. Zorner, Steven L. Evans
  • Process and composition for controlling weeds
    Patent number: 5683961
    Abstract: Described and claimed are methods and compositions for the control of unwanted vegetation. According to the subject invention, a fatty acid or mixture of fatty acids can be combined with one or more chemical herbicides to achieve synergistic control of a broad range of plants.
    Type: Grant
    Filed: June 6, 1995
    Date of Patent: November 4, 1997
    Assignee: Mycogen Corporation
    Inventors: Jerry Caulder, R. Hugh Crowley, Paul S. Zorner, Steven L. Evans
  • Process and composition for controlling weeds
    Patent number: 5681792
    Abstract: Described and claimed are methods and compositions for the control of unwanted vegetation. According to the subject invention, a fatty acid or mixture of fatty acids can be combined with one or more chemical herbicides to achieve synergistic control of a broad range of plants.
    Type: Grant
    Filed: June 7, 1995
    Date of Patent: October 28, 1997
    Assignee: Mycogen Corporation
    Inventors: Jerry Caulder, R. Hugh Crowley, Paul S. Zorner, Steven L. Evans
  • Fatty acid based compositions for the control of established plant infections
    Patent number: 5366995
    Abstract: The invention described here concerns the unique utility of fatty acids and their derivatives to eradicate existing fungal and bacterial infections in plants. Also, described herein are combination treatments whereby fatty acids are used to enhance or augment the activity of fungicides, bactericides, and biological control agents.
    Type: Grant
    Filed: April 23, 1992
    Date of Patent: November 22, 1994
    Assignee: Mycogen Corporation
    Inventors: Steven D. Savage, Steven L. Evans, Robert A. Haygood, Paul S. Zorner
  • Process and composition for controlling weeds
    Patent number: 5196044
    Abstract: Described and claimed are methods and compositions for the control of unwanted vegetation. According to the subject invention, a fatty acid or mixture of fatty acids can be combined with one or more chemical herbicides to achieve synergistic control of a broad range of plants.
    Type: Grant
    Filed: January 8, 1991
    Date of Patent: March 23, 1993
    Assignee: Mycogen Corporation
    Inventors: Jerry Caulder, R. Hugh Crowley, Paul S. Zorner, Steven L. Evans
  • Method for preventing plastic from hardening in a dispenser tip
    Patent number: 5000895
    Abstract: A method for preventing hardening of plastic material in a dispenser tip during periods of nonuse of the dispenser tip. The method involves providing a balloon around the dispenser tip, and then filling the balloon with plastic material.
    Type: Grant
    Filed: August 8, 1990
    Date of Patent: March 19, 1991
    Assignee: Chrysler Corporation
    Inventors: Steven L. Evans, Joseph R. Dolezal