Average Co-Inventor Count = 2.67
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. Sumec Hardware & Tools Co., Ltd. (2 from 5 patents)
2 patents:
1. 11730330 - Floor washing machine
2. 11558998 - Dual handle speed adjustment device and lawn mower using same