Average Co-Inventor Count = 4.00
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. Eta Sa Manufacture Horlogere Suisse (1 from 439 patents)
1 patent:
1. 9645549 - Balance spring with coil spacer device