Average Co-Inventor Count = 1.82
ph-index = 3
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. British Telecommunications Public Limited Company (3 from 1,876 patents)
2. British Telecommunications Corporation (1 from 445 patents)
4 patents:
1. 5058124 - Semiconductor device and piezoelectric stack optical mounting assembly
2. 5018831 - Optical resonant device
3. 4817100 - Monitoring and controlling source stability
4. 4744619 - Connecting and aligning optical fibres and waveguides