Average Co-Inventor Count = 1.00
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. Beifa Group Co., Ltd. (4 from 443 patents)
4 patents:
1. D856423 - Marker
2. D832919 - Pen
3. D829279 - Marker
4. D823389 - Compass