Average Co-Inventor Count = 3.43
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. Plessey Overseas Limited (2 from 271 patents)
2 patents:
1. 4867371 - Fabrication of optical devices
2. 4836633 - Optical connecting arrangements