Patents by Inventor Ching Y. Shih

Ching Y. Shih 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).

  • Control of senescence in fruits, vegetables and flowers
    Patent number: 5087417
    Abstract: Senescence in perishable plant tissue is inhibited by the application thereto of an effective amount of a compound of the formula: ##STR1## wherein R.sub.1, R.sub.2, R.sub.3, R.sub.4 and R.sub.5 are each selected from the group consisting of hydrogen, --OH or --OR.sub.7, provided that at least one of R.sub.1 to R.sub.5 is a hydroxyl group, R.sub.6 is selected from the group consisting of --OH, --OR.sub.8 and --NHR.sub.9, R.sub.7 is a substituent group, R.sub.8 is the residue of an ester-forming compound and R.sub.9 is the residue of an amide-forming compound. The compound may be prepared synthetically and, in some cases, can be isolated from natural sources, for example, the glucose ester of ferulic acid may be isolated from carnation petals.
    Type: Grant
    Filed: August 4, 1988
    Date of Patent: February 11, 1992
    Assignee: University of Waterloo
    Inventors: Erwin B. Dumbroff, John E. Thompson, Ching Y. Shih