Average Co-Inventor Count = 1.89
ph-index = 3
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. Telefunken Electronic Gmbh (3 from 146 patents)
2. Licentia Patent-verwaltungs Gmbh (1 from 639 patents)
3 patents:
1. 4694117 - Solar cell
2. 4577393 - Process for the production of a solar cell
3. 4540843 - Solar cell