Average Co-Inventor Count = 2.62
ph-index = 15
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. Ultratec, Inc. (13 from 98 patents)
2. Other (2 from 832,891 patents)
15 patents:
1. 6307921 - Text enhanced telephony
2. 6075841 - In-line text display for telephone terminal employing data filtering
3. 6075842 - Text enhanced telephony
4. 5978654 - Alphanumeric paging entry system
5. 5974116 - Personal interpreter
6. 5809425 - Gateway for low cost alphanumeric paging entry system
7. 5724405 - Text enhanced telephony
8. 5517548 - Telecommunication device operating under an enhanced TDD protocol
9. 5432837 - Telecommunication device for the deaf with automatic transmission
10. 5351288 - Voice bridge for a relay center
11. 5327479 - Telecommunication device for the deaf with interrupt and pseudo-duplex
12. 5325417 - Telecommunication device for the deaf with automatic self-identification
13. 5081673 - Voice bridge for relay center
14. 4897868 - Public terminal receptacle
15. 4777469 - Public terminal receptacle