Average Co-Inventor Count = 1.38
ph-index = 9
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. (9 from 443 patents)
9 patents:
1. D622770 - Pen
2. D619650 - Dual-tip highlighter
3. D607512 - Dual-tip marker
4. D591351 - Pen
5. D590876 - Dual-tip highlighter
6. D578572 - Pen
7. D577066 - Pen
8. D575336 - Highlighter
9. D573183 - Dual-tip highlighter