Average Co-Inventor Count = 1.33
ph-index = 1
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. Gec-marconi Limited (1 from 171 patents)
2. Philips Electronics UK Limited (1 from 2 patents)
2 patents:
1. 5647954 - Manufacture of etched substrates such as infrared detectors
2. 5367166 - Infrared detector devices and their manufacture