Issued Patents All Time
Showing 1–9 of 9 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7958212 | Updating presence information | Leon Wong | 2011-06-07 |
| 7636753 | Methods and systems for controlling access to presence information according to a variety of different access permission types | Leon Wong, Sudhanshu Aggarwal | 2009-12-22 |
| 7444368 | Methods and systems for selecting methodology for authenticating computer systems on a per computer system or per user basis | Leon Wong, Sudhanshu Aggarwal, Jesse Vincent | 2008-10-28 |
| 6978293 | Methods and systems for selecting criteria for a successful acknowledgement message in instant messaging | Leon Wong, Sudhanshu Aggarwal | 2005-12-20 |
| 6839735 | Methods and systems for controlling access to presence information according to a variety of different access permission types | Leon Wong, Sudhanshu Aggarwal | 2005-01-04 |
| 6604133 | Inter-enterprise messaging system using bridgehead servers | Sudhanshu Aggarwal, Rajeev J. Surati, Leon C. W. Wong, Martin Calsyn | 2003-08-05 |
| 6415318 | Inter-enterprise messaging system using bridgehead servers | Sudhanshu Aggarwal, Rajeev J. Surati, Leon C. W. Wong, Martin Calsyn | 2002-07-02 |
| 6260148 | Methods and systems for message forwarding and property notifications using electronic subscriptions | Sudhanshu Aggarwal, Rajeev J. Surati, Leon C. W. Wong, Martin Calsyn | 2001-07-10 |
| 5943478 | System for immediate popup messaging across the internet | Sudhanshu Aggarwal, Kleanthes G. Koniaris, Rajeev J. Surati | 1999-08-24 |