Average Co-Inventor Count = 11.30
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. Other (2 from 832,812 patents)
2 patents:
1. 4420346 - Method of preparing contacts and electrodes of electric vacuum
2. 4198841 - Roll mill stand