Average Co-Inventor Count = 6.00
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. Nr Electric Co., Ltd (1 from 70 patents)
2. Na Engineering Co., Ltd. (1 from 1 patent)
3. Nr Engineering Co., Ltd (59 patents)
1 patent:
1. 11753843 - Valve tower reinforcing structure and reinforcing method