Patents by Inventor Robert B. Tackman

Robert B. Tackman 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: 7051364
    Abstract: A system and a method for creating and controlling electronic agreements. In general, the system includes a server and at least one client interconnected through a communications medium. In operation, the system only allows access to authorized users. Once a user gains access, the user inputs commands and data that are necessary to create an electronic document. Upon completion of the electronic document, the user can invoke a signature process. During the signature process, the parties to the agreement enter electronic signatures. The present invention operates to encrypt the electronic document and then encrypts each of the signatures using an encryption key that is based, at least in part, on the contents of the electronic document. This aspect of the system prevents the creation of fraudulent versions of the electronic document because any modifications to the electronic document will invalidate the encrypted signatures. Finally, the system operates to transfer the electronic agreement to a secure server.
    Type: Grant
    Filed: September 9, 1999
    Date of Patent: May 23, 2006
    Assignee: DaimlerChrysler Financial Services Americas LLC
    Inventors: Robert B. Tackman, Michael H. Forrest