Patents by Inventor David R. Lander

David R. Lander 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: 4476469
    Abstract: Locator means for assisting in locating an object (animate or inanimate) comprises a hand-held `searcher` (50) comprising a short-range signal transmitter powered by an internal cell or battery and having electronic circuitry for generating an address signal when activated by switching means (52) and miniature `locator` (2) comprising a transponder powered by an internal cell or battery and having electronic circuitry and signal received from the `search`. The `searcher` (50) may be provided with circuitry and selective switching means (FIG. 7 or 5A) for selectively addressing, with coded signals, several locators which may be placed with or on respective objects or attached thereto, e.g. by means of a small ring (8). The `searcher` (50) is preferably torch-like with a handle (56) which may have a lug (58) for attachment of a lanyard (60) whereby the `searcher` may be tethered to a mounting (62).
    Type: Grant
    Filed: July 13, 1982
    Date of Patent: October 9, 1984
    Inventor: David R. Lander