Average Co-Inventor Count = 3.00
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. Beru Ruprecht Gmbh & Co., Kg (1 from 19 patents)
2. Beru Ruprecht Gmbh & Co. (1 from 2 patents)
2 patents:
1. 5645742 - Glow plug with zirconium dioxide coating and nicraly adhesive layer
2. 5626781 - Glow plug with protective coating