Patents by Inventor Dietrich W. Knorr

Dietrich W. Knorr 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).

  • Rapid germination of orchid seeds from immature capsules
    Patent number: 5656482
    Abstract: Seeds of the vanilla orchid Vanilla planifolia attached to an explant of the seed pod are germinated and incubated in a culture medium containing growth regulators.
    Type: Grant
    Filed: March 17, 1988
    Date of Patent: August 12, 1997
    Assignee: University of Delaware
    Inventors: Dietrich W. Knorr, Lynn G. Romagnoli, Cheryl P. Stevens
  • Callus formation vanilla planifolia
    Patent number: 5573941
    Abstract: Described and claimed are the callus of Vanilla planifolia, the preparation of the same and the extraction of vanillin therefrom, and the use of ferulic acid to increase the content of vanillin.
    Type: Grant
    Filed: October 14, 1993
    Date of Patent: November 12, 1996
    Assignee: University of Delaware
    Inventors: Gayle Davidonis, Dietrich W. Knorr, Lynn G. Romagnoli
  • Chitosan alginate capsules
    Patent number: 4808707
    Abstract: The permeability of the walls of chitosan alginate capsules is adjusted by substituting with esterified alginic acid a portion of the metal alginate normally used in the fabrication of such capsules.
    Type: Grant
    Filed: June 8, 1987
    Date of Patent: February 28, 1989
    Assignee: University of Delaware
    Inventors: Mary M. Daly, Robert W. Keown, Dietrich W. Knorr