Average Co-Inventor Count = 2.25
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. France Bed Co., Ltd. (6 from 57 patents)
6 patents:
1. 8915545 - Chair with rotatable backrest
2. 7152262 - Mattress apparatus
3. 7077415 - Hand-driven vehicle
4. 6324709 - Mattress apparatus and bed apparatus
5. 5632524 - Combination Chair
6. 5461737 - Mattress apparatus and method for manufacturing the same