Average Co-Inventor Count = 1.00
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. Zumtobel Aktiengesellschaft (1 from 8 patents)
1 patent:
1. 4725762 - Circuit supplied with direct voltage for generating voltages and/or