Average Co-Inventor Count = 1.64
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 (3 from 1,874 patents)
3 patents:
1. 6091524 - Optical switch
2. 5999287 - Node in optical TDM network
3. 5917972 - Optical device