Patents by Inventor Raymond S. C. Wong

Raymond S. C. Wong 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).

  • Patent number: 5840946
    Abstract: Improved rape plants, seeds capable of forming the same, and a novel improved vegetable oil derived from the rapeseeds are provided. Such plants have the ability to yield a vegetable oil of increased heat stability in combination with other desirable traits. The increased stability of the vegetable oil is attributable to the presence of an unusually high oleic acid content in the rapeseeds which has been lacking in the available rape plants of the prior art. It has been found that the novel rape plants of the present invention reliably can be formed by mutagenesis followed by selection as described. The vegetable oil produced by the improved rape plants of the present invention is particularly well suited for use as a frying oil wherein the increased stability at elevated temperatures is of prime importance. In a preferred embodiment wherein the vegetable oil is used as a frying oil, the alpha-linolenic acid content concomitantly is reduced which additionally imparts an increased oxidative stability.
    Type: Grant
    Filed: June 5, 1995
    Date of Patent: November 24, 1998
    Assignee: Pioneer Hi-Bred International, Inc.
    Inventors: Raymond S. C. Wong, Wallace D. Beversdorf, James R. Castagno, Ian Grant, Jayantilal D. Patel
  • Patent number: 5638637
    Abstract: Improved rape plants, seeds capable of forming the same, and a novel improved endogenous vegetable oil derived from the rapeseeds are provided. Such plants have the ability to yield an endogenous vegetable oil of increased heat stability in combination with other desirable traits. The increased stability of the vegetable oil is attributable to the presence of an unusually high oleic acid content in the rapeseeds which has been lacking in the available rape plants of the prior art. It has been found that the novel rape plants of the present invention reliably can be formed by mutagenesis followed by selection as described. The vegetable oil produced by the improved rape plants of the present invention is particularly well suited for use as a frying oil wherein the increased stability at elevated temperatures is of prime importance.
    Type: Grant
    Filed: December 20, 1988
    Date of Patent: June 17, 1997
    Assignee: Pioneer Hi-Bred International, Inc.
    Inventors: Raymond S. C. Wong, Wallace D. Beversdorf, James R. Castagno, Ian Grant, Jayantilal D. Patel
  • Patent number: 5545821
    Abstract: Improved rape plants, seeds capable of forming the same, and a novel improved edible endogenous vegetable oil derived from the rapeseeds are provided. Such plants have the ability to yield an endogenous vegetable oil having an unusually low saturated fatty acid content. More specifically, the rape plants upon self-pollination are capable of forming rapeseeds which yield an improved vegetable oil following crushing and extraction having a saturated fatty acid content of no more than 4 percent by weight (preferably no more than 3.5 percent by weight and most preferably less than 3 percent by weight) in the form of stearic and palmitic acids based upon the total fatty acid content. A relatively low concentration of erucic acid (as described) also is exhibited in the endogenous oil. It has been found that the novel rape plants of the present invention can be formed by mutagenesis followed by selection as described.
    Type: Grant
    Filed: December 21, 1994
    Date of Patent: August 13, 1996
    Assignee: Pioneer Hi-Bred International. Inc.
    Inventors: Raymond S. C. Wong, Ian Grant, Jayantilal D. Patel, Jeff P. K. Parker, Eric B. Swanson
  • Patent number: 5434283
    Abstract: Improved rape plants, seeds capable of forming the same, and a novel improved edible endogenous vegetable oil derived from the rapeseeds are provided. Such plants have the ability to yield an endogenous vegetable oil having an unusually low saturated fatty acid content. More specifically, the rape plants upon self-pollination are capable of forming rapeseeds which yield an improved vegetable oil following crushing and extraction having a saturated fatty acid content of no more than 4 percent by weight (preferably no more than 3.5 percent by weight and most preferably less than 3 percent by weight) in the form of stearic and palmitic acids based upon the total fatty acid content. A relatively low concentration of erucic acid (as described) also is exhibited in the endogenous oil. It has been found that the novel rape plants of the present invention can be formed by mutagenesis followed by selection as described.
    Type: Grant
    Filed: August 31, 1994
    Date of Patent: July 18, 1995
    Assignee: Pioneer Hi-Bred International, Inc.
    Inventors: Raymond S. C. Wong, Ian Grant, Jayantilal D. Patel, Jeff P. K. Parker, Eric B. Swanson
  • Patent number: 5387758
    Abstract: Improved rape plants, seeds capable of forming the same, and a novel improved edible endogenous vegetable oil derived from the rapeseeds are provided. Such plants have the ability to yield an endogenous vegetable oil having an unusually low saturated fatty acid content. More specifically, the rape plants upon self-pollination are capable of forming rapeseeds which yield an improved vegetable oil following crushing and extraction having a saturated fatty acid content of no more than 4 percent by weight (preferably no more than 3.5 percent by weight and most preferably less than 3 percent by weight) in the form of stearic and palmitic acids based upon the total fatty acid content. A relatively low concentration of erucic acid (as described) also is exhibited in the endogenous oil. It has been found that the novel rape plants of the present invention can be formed by mutagenesis followed by selection as described.
    Type: Grant
    Filed: January 29, 1993
    Date of Patent: February 7, 1995
    Assignee: Pioneer Hi-Bred International, Inc.
    Inventors: Raymond S. C. Wong, Ian Grant, Jayantilal D. Patel, Jeff P. K. Parker, Eric B. Swanson