Average Co-Inventor Count = 2.67
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. Electricite De France (2 from 251 patents)
2. Spie Batignolles (2 from 18 patents)
2 patents:
1. 4746495 - Installation for chemical conversion of a gas mixture containing
2. 4577093 - Device for electric heating of a gas mixture by direct Joule effect