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. Nanjing Chervon Industry Co., Ltd. (3 from 321 patents)
2. Chevron (hk) Limited (1 from 26 patents)
4 patents:
1. 12201057 - Grass trimmer
2. D876188 - Hedge trimmer
3. D853669 - Blower
4. D838925 - Blower