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. Nippon Aleph Co., Ltd. (1 from 4 patents)
2. Gestetner International Limited (1 from 1 patent)
1 patent:
1. 4630074 - Multiple-stylus electrode for discharge printing