Average Co-Inventor Count = 1.50
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. Livework Co., Ltd. (2 from 3 patents)
3 patents:
1. 12151504 - Multi-pen having sharp knob containing a through hole for sharp lead
2. D939226 - Picture frame
3. D916963 - Memo board