Patents by Inventor Douglas P. Ludwig

Douglas P. Ludwig 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: 5441224
    Abstract: A retainer (20) for attaching wiring (100), such as a continuous strand of decorative Christmas lights, to objects such as facia, rain gutters, eaves, walls, ceilings, and windows is disclosed. The retainer (20) has a receiving means (34) for accepting and holding the wiring (100). The retainer (20) can be attached to the object by the use of an adhesive (42), by the use of a fastener (358), or a combination of the two.
    Type: Grant
    Filed: August 1, 1994
    Date of Patent: August 15, 1995
    Inventor: Douglas P. Ludwig