Patents by Inventor Charles E. Nelsen

Charles E. Nelsen 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).

  • Synthetic substrate for filamentous fungi
    Patent number: 4803800
    Abstract: A synthetic substrate which supports the growth and development of filamentous fungi is disclosed. The substrate is comprised of a nutrient in a hydrated hydrogel matrix forming a capsule. In a preferred embodiment, the capsule has an irregular external surface to allow filamentous fungi to adhere thereto even when shaken. Also disclosed is a synthetic CACing agent which includes the synthetic substrate of the present invention, a method of manufacturing the synthetic substrate of the present invention and a method of cultivating mushroom spawn and cultivating mushrooms utilizing the synthetic substrate.
    Type: Grant
    Filed: March 27, 1987
    Date of Patent: February 14, 1989
    Assignee: Plant Genetics, Inc.
    Inventors: C. Peter Romaine, Charles E. Nelsen, Roxanne Davis
  • Production of hydrogel encapsulated nematodes
    Patent number: 4753799
    Abstract: Method and composition for an insecticide comprising a hydrated hydrogel capsule containing an insecticidally effective amount of at least one nematode capable of infecting an insect host, which capsule has sufficient hydration to maintain the viability and infectivity of said nematode. Also disclosed are methods for providing said insecticidal compositions.
    Type: Grant
    Filed: September 14, 1987
    Date of Patent: June 28, 1988
    Assignee: Plant Genetics, Inc.
    Inventors: Charles E. Nelsen, Catharine Mannion
  • Membrane-coated hydrogel encapsulated nematodes
    Patent number: 4701326
    Abstract: Method and composition for an insecticide comprising a hydrated hydrogel capsule containing an insecticidally effective amount of at least one nematode capable of infecting an insect host, which capsule has sufficient hydration to maintain the viability and infectivity of said nematode. Also disclosed are methods for providing said insecticidal compositions.
    Type: Grant
    Filed: May 19, 1986
    Date of Patent: October 20, 1987
    Assignee: Plant Genetics, Inc.
    Inventors: Charles E. Nelsen, Catharine Mannion
  • Hydrogel encapsulated nematodes
    Patent number: 4615883
    Abstract: Method and composition for an insecticide comprising a hydrated hydrogel capsule containing an insecticidally effective amount of at least one nematode capable of infecting an insect host, which capsule has sufficient hydration to maintain the viability and infectivity of said nematode. Also disclosed are methods for providing said insecticidal compositions.
    Type: Grant
    Filed: October 23, 1985
    Date of Patent: October 7, 1986
    Assignee: Plant Genetics, Inc.
    Inventors: Charles E. Nelsen, Catharine Mannion