Average Co-Inventor Count = 3.00
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. France Telecom (1 from 1,156 patents)
2. Université De Rennes 1 (1 from 111 patents)
2 patents:
1. 7525508 - Broadband helical antenna
2. 6836257 - Variable-pitch helical antenna, and corresponding method