Patents by Inventor Dave Bajar

Dave Bajar 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: 8694769
    Abstract: A system and method for controlling data communications between a server and a client device, such as a mobile device. Embodiments relate generally to a technique where stop data is provided to the client device. This stop data can be transmitted (e.g. by the client device) to the server. When processed by the server, the stop data indicates to the server that at least some of the encrypted data received by the client device from the server was not decrypted using the second key (e.g. as may be the case when the second key has been deleted). Upon receiving the stop data, the server may, for example, withhold the transmission of data encrypted with the first key to the client device until the second key is restored on the client device. In one embodiment, the stop data is provided to the client device in an encoded (e.g. encrypted) form.
    Type: Grant
    Filed: December 16, 2011
    Date of Patent: April 8, 2014
    Assignee: BlackBerry Limited
    Inventors: Dave Bajar, Philip Chi-Jim Luk, Michael Kenneth Brown, Darrell Reginald May
  • Publication number: 20120089840
    Abstract: A system and method for controlling data communications between a server and a client device, such as a mobile device. Embodiments relate generally to a technique where stop data is provided to the client device. This stop data can be transmitted (e.g. by the client device) to the server. When processed by the server, the stop data indicates to the server that at least some of the encrypted data received by the client device from the server was not decrypted using the second key (e.g. as may be the case when the second key has been deleted). Upon receiving the stop data, the server may, for example, withhold the transmission of data encrypted with the first key to the client device until the second key is restored on the client device. In one embodiment, the stop data is provided to the client device in an encoded (e.g. encrypted) form.
    Type: Application
    Filed: December 16, 2011
    Publication date: April 12, 2012
    Applicant: RESEARCH IN MOTION LIMITED
    Inventors: Dave Bajar, Philip Luk, Michael K. Brown, Darrell May
  • Publication number: 20110138178
    Abstract: A system and method for controlling data communications between a server and a client device, such as a mobile device. Embodiments relate generally to a technique where stop data is provided to the client device. This stop data can be transmitted (e.g. by the client device) to the server. When processed by the server, the stop data indicates to the server that at least some of the encrypted data received by the client device from the server was not decrypted using the second key (e.g. as may be the case when the second key has been deleted). Upon receiving the stop data, the server may, for example, withhold the transmission of data encrypted with the first key to the client device until the second key is restored on the client device. In one embodiment, the stop data is provided to the client device in an encoded (e.g. encrypted) form.
    Type: Application
    Filed: February 10, 2011
    Publication date: June 9, 2011
    Applicant: RESEARCH IN MOTION LIMITED
    Inventors: Dave Bajar, Philip Luk, Michael K. Brown, Darrell May
  • Patent number: 7904709
    Abstract: A system and method for controlling data communications between a server and a client device, such as a mobile device. Embodiments relate generally to a technique where stop data is provided to the client device. This stop data can be transmitted (e.g. by the client device) to the server. When processed by the server, the stop data indicates to the server that at least some of the encrypted data received by the client device from the server was not decrypted using the second key (e.g. as may be the case when the second key has been deleted). Upon receiving the stop data, the server may, for example, withhold the transmission of data encrypted with the first key to the client device until the second key is restored on the client device. In one embodiment, the stop data is provided to the client device in an encoded (e.g. encrypted) form.
    Type: Grant
    Filed: February 3, 2006
    Date of Patent: March 8, 2011
    Assignee: Research In Motion Limited
    Inventors: Dave Bajar, Philip Luk, Michael K. Brown, Darrell May
  • Publication number: 20070192584
    Abstract: A system and method for controlling data communications between a server and a client device, such as a mobile device. Embodiments relate generally to a technique where stop data is provided to the client device. This stop data can be transmitted (e.g. by the client device) to the server. When processed by the server, the stop data indicates to the server that at least some of the encrypted data received by the client device from the server was not decrypted using the second key (e.g. as may be the case when the second key has been deleted). Upon receiving the stop data, the server may, for example, withhold the transmission of data encrypted with the first key to the client device until the second key is restored on the client device. In one embodiment, the stop data is provided to the client device in an encoded (e.g. encrypted) form.
    Type: Application
    Filed: February 3, 2006
    Publication date: August 16, 2007
    Applicant: Research in Motion Limited
    Inventors: Dave Bajar, Philip Luk, Michael Brown, Darrell May