Patents by Inventor Lawrence C. Keltner

Lawrence C. Keltner 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).

  • Process for the control of chalkbrood disease in leafcutter bees
    Patent number: 4504495
    Abstract: A process for the control of chalkbrood disease among leafcutter bees including the step of fumigating the larva stage of the leafcutter bee with a fungicide in an amount effective to kill or check the growth of spores of the fungus Ascosphaera sp. Where old, previously used beeboards, equipment, grooved boards, shelters, trays, incubators, cell removers, tumblers and other apparatus are used in rearing leafcutter bees, the process further includes the step of fumigating the apparatus.
    Type: Grant
    Filed: February 24, 1984
    Date of Patent: March 12, 1985
    Inventor: Lawrence C. Keltner