Patents by Inventor Leonid Raiz

Leonid Raiz 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: 7278164
    Abstract: A method that includes (1) distributing authorization keys from a subscription server to computers on which copies of an application program are to be run, each of the authorization keys being associated with a validity period during which the authorization key will be valid, and (2) at intermittent times that may be as infrequent as the times when the validity periods end, distributing new authorization keys to each of the computers, the keys being distributed electronically in a manner that is transparent to users of the computers.
    Type: Grant
    Filed: January 5, 2001
    Date of Patent: October 2, 2007
    Assignee: Revit Technology Corporation
    Inventors: Leonid Raiz, Irwin Jungreis
  • Publication number: 20020164025
    Abstract: A method that includes (1) distributing authorization keys from a subscription server to computers on which copies of an application program are to be run, each of the authorization keys being associated with a validity period during which the authorization key will be valid, and (2) at intermittent times that may be as infrequent as the times when the validity periods end, distributing new authorization keys to each of the computers, the keys being distributed electronically in a manner that is transparent to users of the computers.
    Type: Application
    Filed: January 5, 2001
    Publication date: November 7, 2002
    Inventors: Leonid Raiz, Irwin Jungreis