Average Co-Inventor Count = 1.00
ph-index = 1
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. Dayou Holdings Co., Ltd. (2 from 3 patents)
2. Dayou A-Tech Co., Ltd. (1 patent)
2 patents:
1. 10538184 - Integrated foam type headrest having different hardness, and manufacturing method thereof
2. 10207618 - Multi-hardness cushion for automobile and multi-hardness cushion having ventilation structure