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 1,878 patents)
2 patents:
1. 5153764 - Control of optical systems
2. 5144669 - Method of communicating digital signals and receiver for use with such