Patents by Inventor Joel I. Krugler

Joel I. Krugler 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: 4041642
    Abstract: A method for increasing the yield of recoverable sugar from sugar beets is disclosed, wherein the beets are illuminated during at least a portion of the night with light having a wavelength in the range of 560nm to 700nm.
    Type: Grant
    Filed: June 9, 1976
    Date of Patent: August 16, 1977
    Assignee: GTE Laboratories Incorporated
    Inventors: Joel I. Krugler, William F. Nelson