Issued Patents All Time
Showing 1–25 of 38 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7908320 | Tracking user locations over multiple networks to enable real time communications | Lester F. Ludwig, Keith A. Lantz, Gerald J. Burnett, Emmett R. Burns | 2011-03-15 |
| 7831663 | Storage and playback of media files | Lester F. Ludwig, Keith A. Lantz, Gerald J. Burnett, Emmett R. Burns | 2010-11-09 |
| 7822813 | Storing and accessing media files | Lester F. Ludwig, Keith A. Lantz, Gerald J. Burnett, Emmett R. Burns | 2010-10-26 |
| 7730132 | Storing and accessing media files | Lester F. Ludwig, Keith A. Lantz, Gerald J. Burnett, Emmett R. Burns | 2010-06-01 |
| 7487210 | Method for managing real-time communications | Lester F. Ludwig, Keith A. Lantz, Gerald J. Burnett, Emmett R. Burns | 2009-02-03 |
| 7444373 | Wireless real-time communication | Lester F. Ludwig, Keith A. Lantz, Gerald J. Burnett, Emmett R. Burns | 2008-10-28 |
| 7441001 | Real-time wide-area communications between ports | Lester F. Ludwig, Keith A. Lantz, Gerald J. Burnett, Emmett R. Burns | 2008-10-21 |
| 7437411 | Communication of a selected type over a wide area network | Lester F. Ludwig, Keith A. Lantz, Gerald J. Burnett, Emmett R. Burns | 2008-10-14 |
| 7437412 | Real-time communication of a selected type | Lester F. Ludwig, Keith A. Lantz, Gerald J. Burnett, Emmett R. Burns | 2008-10-14 |
| 7433921 | System for real-time communication between plural users | Lester F. Ludwig, Keith A. Lantz, Gerald J. Burnett, Emmett R. Burns | 2008-10-07 |
| 7421470 | Method for real-time communication between plural users | Lester F. Ludwig, Keith A. Lantz, Gerald J. Burnett, Emmett R. Burns | 2008-09-02 |
| 7412482 | System for managing real-time communications | Lester F. Ludwig, Keith A. Lantz, Gerald J. Burnett, Emmett R. Burns | 2008-08-12 |
| 7398296 | Networked audio communication over two networks | Lester F. Ludwig, Keith A. Lantz, Gerald J. Burnett, Emmett R. Burns | 2008-07-08 |
| 7206809 | Method for real-time communication between plural users | Lester F. Ludwig, Keith A. Lantz, Gerald J. Burnett, Emmett R. Burns | 2007-04-17 |
| 7185054 | Participant display and selection in video conference calls | Lester F. Ludwig, Keith A. Lantz, Gerald J. Burnett, Emmett R. Burns | 2007-02-27 |
| 7152093 | System for real-time communication between plural users | Lester F. Ludwig, Keith A. Lantz, Gerald J. Burnett, Emmett R. Burns | 2006-12-19 |
| 7054904 | Marking and searching capabilities in multimedia documents within multimedia collaboration networks | Lester F. Ludwig, Keith A. Lantz, Gerald J. Burnett, Emmett R. Burns | 2006-05-30 |
| 6959322 | UTP based video conferencing | Lester F. Ludwig | 2005-10-25 |
| 6898620 | Multiplexing video and control signals onto UTP | Lester F. Ludwig | 2005-05-24 |
| 6789105 | Multiple-editor authoring of multimedia documents including real-time video and time-insensitive media | Lester F. Ludwig | 2004-09-07 |
| 6594688 | Dedicated echo canceler for a workstation | Lester F. Ludwig, Keith A. Lantz, Gerald J. Burnett, Emmett R. Burns | 2003-07-15 |
| 6583806 | Videoconferencing hardware | Lester F. Ludwig, Keith A. Lantz, Gerald J. Burnett, Emmett R. Burns | 2003-06-24 |
| 6437818 | Video conferencing on existing UTP infrastructure | Lester F. Ludwig | 2002-08-20 |
| 6426769 | High-quality switched analog video communications over unshielded twisted pair | Lester F. Ludwig | 2002-07-30 |
| 6351762 | Method and system for log-in-based video and multimedia calls | Lester F. Ludwig, Keith A. Lantz, Gerald J. Burnett, Emmett R. Burns | 2002-02-26 |