Average Co-Inventor Count = 2.00
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. Preh-werke Gmbh Co. Kg (1 from 70 patents)
1 patent:
1. 5642950 - Keyboard with a protective foil