Average Co-Inventor Count = 2.43
ph-index = 4
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)
2. Bt&d Technologies Limited (1 from 19 patents)
4 patents:
1. 5978400 - Laser
2. 5852696 - Packaged optical device
3. 5793919 - Optical backplane interconnect
4. 5305413 - Optical fibre feedthrough