Issued Patents All Time
Showing 1–25 of 33 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7908320 | Tracking user locations over multiple networks to enable real time communications | Lester F. Ludwig, J. Chris Lauwers, Keith A. Lantz, Gerald J. Burnett | 2011-03-15 |
| 7831663 | Storage and playback of media files | Lester F. Ludwig, J. Chris Lauwers, Keith A. Lantz, Gerald J. Burnett | 2010-11-09 |
| 7822813 | Storing and accessing media files | Lester F. Ludwig, J. Chris Lauwers, Keith A. Lantz, Gerald J. Burnett | 2010-10-26 |
| 7730132 | Storing and accessing media files | Lester F. Ludwig, J. Chris Lauwers, Keith A. Lantz, Gerald J. Burnett | 2010-06-01 |
| 7487210 | Method for managing real-time communications | Lester F. Ludwig, J. Chris Lauwers, Keith A. Lantz, Gerald J. Burnett | 2009-02-03 |
| 7444373 | Wireless real-time communication | Lester F. Ludwig, J. Chris Lauwers, Keith A. Lantz, Gerald J. Burnett | 2008-10-28 |
| 7441001 | Real-time wide-area communications between ports | Lester F. Ludwig, J. Chris Lauwers, Keith A. Lantz, Gerald J. Burnett | 2008-10-21 |
| 7437411 | Communication of a selected type over a wide area network | Lester F. Ludwig, J. Chris Lauwers, Keith A. Lantz, Gerald J. Burnett | 2008-10-14 |
| 7437412 | Real-time communication of a selected type | Lester F. Ludwig, J. Chris Lauwers, Keith A. Lantz, Gerald J. Burnett | 2008-10-14 |
| 7433921 | System for real-time communication between plural users | Lester F. Ludwig, J. Chris Lauwers, Keith A. Lantz, Gerald J. Burnett | 2008-10-07 |
| 7421470 | Method for real-time communication between plural users | Lester F. Ludwig, J. Chris Lauwers, Keith A. Lantz, Gerald J. Burnett | 2008-09-02 |
| 7412482 | System for managing real-time communications | Lester F. Ludwig, J. Chris Lauwers, Keith A. Lantz, Gerald J. Burnett | 2008-08-12 |
| 7398296 | Networked audio communication over two networks | Lester F. Ludwig, J. Chris Lauwers, Keith A. Lantz, Gerald J. Burnett | 2008-07-08 |
| 7206809 | Method for real-time communication between plural users | Lester F. Ludwig, J. Chris Lauwers, Keith A. Lantz, Gerald J. Burnett | 2007-04-17 |
| 7185054 | Participant display and selection in video conference calls | Lester F. Ludwig, J. Chris Lauwers, Keith A. Lantz, Gerald J. Burnett | 2007-02-27 |
| 7152093 | System for real-time communication between plural users | Lester F. Ludwig, J. Chris Lauwers, Keith A. Lantz, Gerald J. Burnett | 2006-12-19 |
| 7054904 | Marking and searching capabilities in multimedia documents within multimedia collaboration networks | Lester F. Ludwig, J. Chris Lauwers, Keith A. Lantz, Gerald J. Burnett | 2006-05-30 |
| 6594688 | Dedicated echo canceler for a workstation | Lester F. Ludwig, J. Chris Lauwers, Keith A. Lantz, Gerald J. Burnett | 2003-07-15 |
| 6583806 | Videoconferencing hardware | Lester F. Ludwig, J. Chris Lauwers, Keith A. Lantz, Gerald J. Burnett | 2003-06-24 |
| 6351762 | Method and system for log-in-based video and multimedia calls | Lester F. Ludwig, J. Chris Lauwers, Keith A. Lantz, Gerald J. Burnett | 2002-02-26 |
| 6343314 | Remote participant hold and disconnect during videoconferencing | Lester F. Ludwig, J. Chris Lauwers, Keith A. Lantz, Gerald J. Burnett | 2002-01-29 |
| 6237025 | Multimedia collaboration system | Lester F. Ludwig, J. Chris Lauwers, Keith A. Lantz, Gerald J. Burnett | 2001-05-22 |
| 5978835 | Multimedia mail, conference recording and documents in video conferencing | Lester F. Ludwig, J. Chris Lauwers, Keith A. Lantz, Gerald J. Burnett | 1999-11-02 |
| 5915091 | Synchronization in video conferencing | Lester F. Ludwig, J. Chris Lauwers, Keith A. Lantz, Gerald J. Burnett | 1999-06-22 |
| 5896500 | System for call request which results in first and second call handle defining call state consisting of active or hold for its respective AV device | Lester F. Ludwig, J. Chris Lauwers, Keith A. Lantz, Gerald J. Burnett | 1999-04-20 |