Average Co-Inventor Count = 3.38
ph-index = 3
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. Hitachi Koki Co., Ltd. (4 from 1,267 patents)
4 patents:
1. 8087556 - Power tool
2. 7431187 - Nailer
3. D524137 - Pneumatic nailer
4. 6978920 - Box nailing machine