Patents by Inventor Bradley C. Karthauser

Bradley C. Karthauser 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).

  • Transferable growing tray apparatus
    Patent number: 5337517
    Abstract: An improved growing tray apparatus including means for moveable positioning the tray with respect to a support surface such that the tray and/or the surface may be transferred while the tray is in use. The apparatus incorporates a side wall configuration which permits the tray to be secured on a pallet or similar support structure and moved therewith, but does not interfere with plant care and nurture. Off-season storage is also facilitated by the side wall configuration. Choice of construction material enhances the benefits available through use of this apparatus.
    Type: Grant
    Filed: October 30, 1992
    Date of Patent: August 16, 1994
    Assignee: Envigro, Inc.
    Inventors: Bradley C. Karthauser, Paul D. Lindsay