Issued Patents All Time
Showing 26–38 of 38 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6343314 | Remote participant hold and disconnect during videoconferencing | Lester F. Ludwig, Keith A. Lantz, Gerald J. Burnett, Emmett R. Burns | 2002-01-29 |
| 6237025 | Multimedia collaboration system | Lester F. Ludwig, Keith A. Lantz, Gerald J. Burnett, Emmett R. Burns | 2001-05-22 |
| 6212547 | UTP based video and data conferencing | Lester F. Ludwig | 2001-04-03 |
| 5978835 | Multimedia mail, conference recording and documents in video conferencing | Lester F. Ludwig, Keith A. Lantz, Gerald J. Burnett, Emmett R. Burns | 1999-11-02 |
| 5915091 | Synchronization in video conferencing | Lester F. Ludwig, Keith A. Lantz, Gerald J. Burnett, Emmett R. Burns | 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, Keith A. Lantz, Gerald J. Burnett, Emmett R. Burns | 1999-04-20 |
| 5884039 | System for providing a directory of AV devices and capabilities and call processing such that each participant participates to the extent of capabilities available | Lester F. Ludwig, Keith A. Lantz, Gerald J. Burnett, Emmett R. Burns | 1999-03-16 |
| 5867654 | Two monitor videoconferencing hardware | Lester F. Ludwig, Keith A. Lantz, Gerald J. Burnett, Emmett R. Burns | 1999-02-02 |
| 5854893 | System for teleconferencing in which collaboration types and participants by names or icons are selected by a participant of the teleconference | Lester F. Ludwig, Keith A. Lantz, Gerald J. Burnett, Emmett R. Burns | 1998-12-29 |
| 5802294 | Teleconferencing system in which location video mosaic generator sends combined local participants images to second location video mosaic generator for displaying combined images | Lester F. Ludwig, Keith A. Lantz, Gerald J. Burnett, Emmett R. Burns | 1998-09-01 |
| 5758079 | Call control in video conferencing allowing acceptance and identification of participants in a new incoming call during an active teleconference | Lester F. Ludwig, Keith A. Lantz, Gerald J. Burnett, Emmett R. Burns | 1998-05-26 |
| 5689641 | Multimedia collaboration system arrangement for routing compressed AV signal through a participant site without decompressing the AV signal | Lester F. Ludwig, Keith A. Lantz, Gerald J. Burnett, Emmett R. Burns | 1997-11-18 |
| 5617539 | Multimedia collaboration system with separate data network and A/V network controlled by information transmitting on the data network | Lester F. Ludwig, Keith A. Lantz, Gerald J. Burnett, Emmett R. Burns | 1997-04-01 |