Average Co-Inventor Count = 4.00
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 Elektrofeinmechanische Werke Jakob Preh Nachf Gmbh & Co. (1 from 49 patents)
1 patent:
1. 4902862 - Keyboard switch device for facilitating removal and replacement of push