Patents by Inventor Clifford S. Lofgren

Clifford S. Lofgren 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).

  • Repellent for ants
    Patent number: 6294577
    Abstract: A method and composition has been discovered for repelling ants by treating objects or areas with effective amounts of compositions that includes at least one C3-C10 dicarboxylic acid diester and a carrier.
    Type: Grant
    Filed: March 6, 2000
    Date of Patent: September 25, 2001
    Assignee: The United States of America as represented by the Secretary of Agriculture
    Inventors: Robert K. Vander Meer, William A. Banks, Clifford S. Lofgren
  • Repellent for ants
    Patent number: 6071973
    Abstract: A method has been discovered for repelling ants by treating objects or areas with effective amounts of compositions that include (a) one or more C.sub.6 to C.sub.8 carboxylic acids; (b) one or more C.sub.6 to C.sub.14 alcohols; (c) one or more esters which are reaction products of (a) and (b) or an ester which is a reaction product of the repellents and other carboxylic acids or alcohols; (d) one or more C.sub.6 to C.sub.11 carboxylic acid esters; (e) one or more C.sub.6 to C.sub.14 ketones; or (f) mixtures thereof.
    Type: Grant
    Filed: February 10, 1997
    Date of Patent: June 6, 2000
    Assignee: The United States of America as represented by the Secretary of Agriculture
    Inventors: Robert K. Vander Meer, William A. Banks, Clifford S. Lofgren
  • Attractant for social pest insects
    Patent number: 5897859
    Abstract: An attractant for social pest insects has been discovered and isolated from soybean oil. This attractant is also found in canola oil. This attractant increases the effectiveness of baits and/or traps in the control of social pest insects.
    Type: Grant
    Filed: August 5, 1997
    Date of Patent: April 27, 1999
    Assignee: The United States of America as represented by the Secretary of Agriculture
    Inventors: Robert K Vander Meer, Clifford S Lofgren
  • Repellents for ants
    Patent number: 5721274
    Abstract: A method has been discovered for repelling ants by treating objects or areas with effective amounts of compositions that include (a) one or more C.sub.6 to C.sub.8 carboxylic acids; (b) one or more C.sub.6 to C.sub.14 alcohols; (c) one or more esters which are reaction products of (a) and (b) or an ester which is a reaction product of the repellents and other carboxylic acids or alcohols; (d) one or more C.sub.6 to C.sub.11 carboxylic acid esters; (e) one or more C.sub.6 to C.sub.14 ketones; (f) one or more C.sub.6 to C.sub.14 aldehydes; or (g) mixtures thereof.
    Type: Grant
    Filed: December 29, 1995
    Date of Patent: February 24, 1998
    Assignee: The United States of America, as represented by the Secretary of Agriculture
    Inventors: Robert K. Vander Meer, William A. Banks, Clifford S. Lofgren
  • Repellents for ants
    Patent number: 5648390
    Abstract: A method has been discovered for repelling ants by treating objects or areas with effective amounts of compositions that include (a) one or more C.sub.6 to C.sub.8 carboxylic acids; (b) one or more C.sub.6 to C.sub.14 alcohols; (c) one or more esters which are reaction products of (a) and (b) or an ester which is a reaction product of the repellents and other carboxylic acids or alcohols; (d) one or more C.sub.6 to C.sub.11 carboxylic acid esters; (e) one or more C.sub.6 to C.sub.14 ketones; or (f) mixtures thereof.
    Type: Grant
    Filed: August 4, 1994
    Date of Patent: July 15, 1997
    Assignee: The United States of America as represented by the Secretary of Agriculture
    Inventors: Robert K. Vander Meer, William A. Banks, Clifford S. Lofgren
  • Repellents for ants
    Patent number: 5587401
    Abstract: A method has been discovered for repelling ants by treating objects or areas with effective amounts of compositions that include (a) one or more C.sub.6 to C.sub.8 carboxylic acids; (b) one or more C.sub.6 to C.sub.14 alcohols; (c) one or more esters which are reaction products of (a) and (b) or an ester which is a reaction product of the repellents and other carboxylic acids or alcohols; (d) one or more C.sub.6 to C.sub.11 carboxylic acid esters; (e) one or more C.sub.6 to C.sub.14 ketones; or (f) mixtures thereof.
    Type: Grant
    Filed: June 6, 1995
    Date of Patent: December 24, 1996
    Assignee: The United States of America as represented by the Secretary of Agriculture
    Inventors: Robert K. Vander Meer, William A. Banks, Clifford S. Lofgren
  • Method for the control of insects
    Patent number: 5364618
    Abstract: A method has been discovered for the control of arthropod pests which comprises treating the pest with an effective amount of selected fluorocarbons.
    Type: Grant
    Filed: December 2, 1992
    Date of Patent: November 15, 1994
    Assignees: The United States of America as represented by the Secretary of Agriculture, Southern Research Institute, Inc.
    Inventors: Robert K. V. Meer, Clifford S. Lofgren, David F. Williams, William E. Meyers, Danny H. Lewis
  • Method for the control of insects
    Patent number: 5177107
    Abstract: A method has been discovered for the control of arthropod pests which comprises treating the pest with an effective amount of selected fluorocarbons.
    Type: Grant
    Filed: March 21, 1990
    Date of Patent: January 5, 1993
    Assignee: The United States of America as represented by the Secretary of the Agriculture
    Inventors: Robert K. V. Meer, Clifford S. Lofgren, William E. Myers, Danny H. Lewis, David F. Williams
  • Method for the control of insects
    Patent number: 4921696
    Abstract: A method has been discovered for the control of arthropod pests which comprises treating the pest with an effective amount of selected fluorocarbons.
    Type: Grant
    Filed: October 11, 1988
    Date of Patent: May 1, 1990
    Assignees: The United States of America as represented by the Secretary of Agriculture, Southern Research Institute, Inc.
    Inventors: Robert K. Vander Meer, Clifford S. Lofgren, David F. Williams