Average Co-Inventor Count = 2.18
ph-index = 3
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. Zhejiang Yotrio Group Co., Ltd (3 from 28 patents)
2. Yotrio Group Co., Ltd. (1 from 34 patents)
4 patents:
1. 10646011 - Umbrella rib and lighting umbrella
2. 10064465 - Opening and closing structure for umbrella combining automatic and non-automatic modes
3. 10045613 - Combined table-umbrella
4. 9820540 - Solar umbrella