Patents by Inventor Douglas Stuart Nubel

Douglas Stuart Nubel 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).

  • Pollinators for topcross.RTM. grain production
    Patent number: 5922934
    Abstract: A class of corn plants has been developed that are superior as pollinators in the TopCross.RTM. Grain Production System. The plants of this class are larger and more vigorous than many of the current TC Blend.RTM. pollinators. The seed that produces this new class of TC Blend.RTM. pollinators is produced at greater yields and is of greater vigor and quality than that of many current TC Blend.RTM. pollinators. Additionally, the means whereby the seed of this class of plants is produced enables the rapid generation of a wide range of maturities of TC Blend.RTM. pollinators. This greatly expands both the geographic range and the genetic breadth of the TopCross.RTM. grain production system.
    Type: Grant
    Filed: March 31, 1997
    Date of Patent: July 13, 1999
    Assignee: Optimum Quality Grains, L.L.C.
    Inventors: Richard Robert Bergquist, Stuart Leonard Kaplan, Douglas Stuart Nubel, Terry J. Foley
  • Production method for corn with enhanced quality grain traits
    Patent number: 5706603
    Abstract: A novel method of producing corn grain with enhanced quality traits including high oil content has been developed. Through pollination of male-sterile hybrid corn plants by nonisogenic corn plants possessing genes which control the expression of enhanced quality grain traits, grain is obtained possessing such traits much higher than would be expected for self- or cross-pollination. This method can be practiced by farmers using currently accepted farming practices to directly obtain high yields of high-oil corn grain, high-protein corn grain, and other valuable grain for animal feed and other products.
    Type: Grant
    Filed: June 5, 1995
    Date of Patent: January 13, 1998
    Assignees: E. I. Du Pont de Nemours and Company, Dupont TopCross International, Inc.
    Inventors: Richard Robert Bergquist, Douglas Stuart Nubel, Donald L. Thompson
  • Production method for high-oil corn grain
    Patent number: 5704160
    Abstract: A novel method of producing corn grain with a high oil content has been developed. Through pollination of male-sterile hybrid corn plants by nonisogenic corn plants possessing the trait of high-oil, grain is obtained possessing an oil content much higher than would be expected for self- or cross-pollination. This method can be practiced by farmers using currently accepted farming practices to directly obtain high yields of high-oil corn grain for animal feed and other products.
    Type: Grant
    Filed: November 16, 1990
    Date of Patent: January 6, 1998
    Assignees: E. I. Du Pont de Nemours and Company, DuPont TopCross International, Inc.
    Inventors: Richard Robert Bergquist, Douglas Stuart Nubel, Donald L. Thompson