Average Co-Inventor Count = 1.00
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. (21 from 443 patents)
21 patents:
1. D881275 - Pen
2. D867453 - Pen
3. D836718 - Pencil sharpener
4. D835717 - Pencil sharpener
5. D832923 - Eraser
6. D829821 - Pen
7. D699293 - Pen
8. D699295 - Pen cap
9. D695826 - Pen
10. D695827 - Pen
11. D695831 - Pen cap
12. D695832 - Pen cap
13. D683400 - Pen
14. D683402 - Pen
15. D678944 - Pen