Average Co-Inventor Count = 2.86
ph-index = 2
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 (2 from 1,874 patents)
2 patents:
1. 5004314 - Optical signal modulation device
2. 4851079 - Producing lithium niobate waveguide structures