Average Co-Inventor Count = 1.20
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. France Bed Co., Ltd. (3 from 57 patents)
3 patents:
1. 9693914 - Wheelchair
2. 9027948 - Brake-equipped wheelchair
3. 7017210 - Rising-type bed apparatus and mattress