Average Co-Inventor Count = 2.00
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 1,873 patents)
2. British Telecommunications Corporation (1 from 445 patents)
4 patents:
1. 5333220 - Quantum non-demolition optical tapping
2. 5307428 - Optical domain digital pulse switching
3. 5208455 - Square optical pulse generator
4. 4943134 - Coupler