Average Co-Inventor Count = 1.67
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. Zumtobel Lighting Gmbh & Co. Kg (1 from 25 patents)
2. Zumtobel Staff Gmbh Co., Kg (1 from 20 patents)
2 patents:
1. 7762688 - Luminaire comprising a spotlight and adjustable holding device for a spotlight
2. D565222 - Light fixture with moving head