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. Varta Batterie Aktiengesellschaft (2 from 204 patents)
2 patents:
1. 4215187 - Gas-tight galvanic cell
2. 4053693 - Pole bolt seal for galvanic cells