Average Co-Inventor Count = 1.00
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. Cise S.p.a. (1 from 8 patents)
2. Enel (ente Nazionale Per L'energia Elettrica) & Cise S.p.a. (1 from 1 patent)
2 patents:
1. 5437506 - System for measuring the transfer time of a sound-wave in a gas and
2. 4415769 - Electromagnetic telephone coupling device