Average Co-Inventor Count = 3.43
ph-index = 2
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. (2 from 321 patents)
2. Chervon (hk) Limited (2 from 183 patents)
3. Chervon Limited (55 patents)
4 patents:
1. 11937541 - Grass cutting head and grass trimmer using the same
2. 11219159 - Grass trimmer
3. 11134610 - Grass cutting head and grass trimmer using the same
4. 10485165 - Grass trimmer