Average Co-Inventor Count = 2.00
ph-index = 4
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. D579496 - Pen
2. D573185 - Pen
3. D566179 - Pen
4. D559315 - Pen