Average Co-Inventor Count = 3.16
ph-index = 5
The patent ph-index is calculated by counting the number of publications for which an author has been cited by other authors at least that same number of times.
Company Filing History:
1. Vtel Corporation (2 from 24 patents)
2. Forgent Networks, Inc. (2 from 12 patents)
3. Videotelecom Corp. (1 from 2 patents)
5 patents:
1. 6674960 - Computer controlled recorder of television signals having the ability for a user to select among a varity of stored signals for playback independent of recording of an audio and video stream
2. 6480584 - Multiple medium message recording system
3. 6285746 - Computer controlled video system allowing playback during recording
4. 6181784 - Computer controlled video multiplexer for video conferencing and message systems
5. 4893326 - Video-telephone communications system