Average Co-Inventor Count = 2.57
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 (3 from 204 patents)
3 patents:
1. 4114649 - Lead dosing valve
2. 4107398 - Gas removal means for storage batteries
3. 4065116 - Clamping of battery plate block assemblies