Patents by Inventor Mark S. Roh

Mark S. Roh 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: 5138794
    Abstract: A new and innovative technique of producing Lilium elegans Asiatic hybrid lily is disclosed. Very small bulbils from leaf axils of L. elegans receives sequential low-high-low temperature treatment before planting in the soil medium. After planting, scale leaves emerge and bulb weight increases. After about 13 scale leaves have emerged from the bulbs, the temperature is lowered to favor shoot emergence, preferably under long day photoperiod to accelerate shoot emergence and to induce flower bud formation. A desirable plant producing up to three flowers on a long stem is produced in about 270-300 days after harvesting bulbils, thus bypassing the field production phase of the bulb that lasts more than a year in the field.
    Type: Grant
    Filed: March 28, 1990
    Date of Patent: August 18, 1992
    Assignee: The United States of America as represented by the Secretary of Agriculture
    Inventor: Mark S. Roh