Average Co-Inventor Count = 4.00
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 1,871 patents)
2 patents:
1. 6172811 - Optical grating and a method of fabricating an optical grating
2. 5666224 - Optical grating and method of fabricating an optical grating