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. Zumtobel Aktiengesellschaft (2 from 8 patents)
2 patents:
1. 4998339 - Process for fabrication of an iron member with a winding for generation
2. 4143302 - Energizing circuit for a fluorescent lamp