Patents by Inventor Robert Grayson

Robert Grayson 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).

  • Secure Delivery of Goods
    Publication number: 20090101711
    Abstract: A secure container (2) has a combination lock (6) that is always operable in response to at least one master key and is also operable on a single occasion in response to a transaction-unique delivery key generated from the master key. The lock (6) also contains processor means (20) for comparing or decoding the delivery key, means (10, 20, 26) for releasing the lock in response to a valid delivery key, and storage means (22) for identifying used delivery keys.
    Type: Application
    Filed: April 12, 2006
    Publication date: April 23, 2009
    Applicant: Delivery Works Limited
    Inventor: Robert Grayson