Average Co-Inventor Count = 3.43
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. Chigoo Interactive Technology Co., Ltd. (4 from 7 patents)
4 patents:
1. 10214231 - Trolley baseplate and trolley using the same
2. 10086859 - Trolley for carrying items
3. 9969415 - Trolley with a player
4. 9809243 - Frame structure and trolley using frame structure