Average Co-Inventor Count = 4.44
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. Delta Tooling Co., Ltd. (2 from 123 patents)
2 patents:
1. 10271119 - Headrest having speaker
2. 10227229 - Method for manufacturing headrest, and headrest