Patents by Inventor J. Larry Sanders

J. Larry Sanders 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).

  • Treatment of tree seedlings to enhance survival rate
    Patent number: 5935909
    Abstract: Tree seedlings, especially pine tree nursery seedlings, are treated, for example, by a root soak with a water-soluble, polyorganic acid, having a molecular weight size of more than 1,500 Daltons. Particularly suitable for this purpose are polyamino acids such as polyaspartic acid.
    Type: Grant
    Filed: September 16, 1997
    Date of Patent: August 10, 1999
    Assignee: Donlar Corporation
    Inventor: J. Larry Sanders
  • Method and composition for enhanced plant productivity comprising fertilizer and cross-linked polyamino acid
    Patent number: 5861356
    Abstract: This invention relates to enhancing plant productivity employing a method and improved compositions containing water-soluble crosslinked polyamino acids having a weight average molecular weight of a size larger than about 1,500. More particularly, crosslinked polyamino acids enhance plant productivity when supplied to the plant directly as the free acid or salt thereof or hydrolyzed from a crosslinked precursor of the crosslinked polyamino acid by the method disclosed. Particularly suitable for this purpose are water-soluble, crosslinked polyaspartic acid, and salts thereof and hydrolyzed crosslinked polysuccinimide.
    Type: Grant
    Filed: January 10, 1997
    Date of Patent: January 19, 1999
    Assignee: Donlar Corporation
    Inventors: Larry P. Koskan, Abdul Rehman Y. Meah, J. Larry Sanders, Robert J. Ross
  • Method for enhanced hydroponic plant productivity with polymeric acids
    Patent number: 5854177
    Abstract: Plant productivity in a hydroponic medium is enhanced by the addition of a water-soluble, non-biodegradable, non-peptidal polymeric acid having a molecular size larger than about 1,500 Daltons.
    Type: Grant
    Filed: January 10, 1997
    Date of Patent: December 29, 1998
    Assignee: Donlar Corporation
    Inventors: Larry P. Koskan, Abdul Rehman Y. Meah, J. Larry Sanders, Robert J. Ross
  • Method and composition for enhanced hydroponic plant productivity with polyamino acids
    Patent number: 5783523
    Abstract: This invention relates to enhancing plant productivity employing a method and improved compositions containing water-soluble amino acid co-polymers having a molecular size larger than about 1,500 Daltons.
    Type: Grant
    Filed: January 10, 1997
    Date of Patent: July 21, 1998
    Assignee: Donlar Corporation
    Inventors: Larry P. Koskan, Abdul Rehman Y. Meah, J. Larry Sanders, Robert J. Ross
  • Polyaspartic acid and its analogues in combination with insecticides
    Patent number: 5709890
    Abstract: An insecticide composition is enhanced from the standpoint of its ability to be absorbed by insects, such as red fire ants, particularly dithiophosphate ester pesticides by the addition of a small amount of a water soluble non-aromatic polyorganic acid or salt form thereof such as polyaspartic acid, particularly preferred with a molecular weight in the range of about 3000 to 40,000.
    Type: Grant
    Filed: March 20, 1997
    Date of Patent: January 20, 1998
    Assignee: Donlar Corporation
    Inventor: J. Larry Sanders
  • Polyaspartic acid and its analogues in combination with insecticides
    Patent number: 5646133
    Abstract: An insecticide composition is enhanced from the standpoint of its ability to be absorbed by insects, such as red fire ants, particularly dithiophosphate ester pesticides by the addition of a small amount of a water soluble non-aromatic polyorganic acid or salt form thereof such as polyaspartic acid, particularly preferred with a molecular weight in the range of about 3000 to 40,000.
    Type: Grant
    Filed: March 14, 1996
    Date of Patent: July 8, 1997
    Assignee: Donlar Corporation
    Inventor: J. Larry Sanders
  • Polyorganic acids and their analogues to enhance herbicide effectiveness
    Patent number: 5635447
    Abstract: A herbicide composition which comprises a herbicide and a small but herbicide absorption enhancing effective amount of a water soluble, non-aromatic polyorganic acid or a salt or copolymer thereof such as polyaspartic acid.
    Type: Grant
    Filed: March 22, 1996
    Date of Patent: June 3, 1997
    Assignee: Donlar Corporation
    Inventor: J. Larry Sanders