Average Co-Inventor Count = 2.00
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. Kobelco Construction Machinery Co., Ltd. (3 from 631 patents)
3 patents:
1. 7044534 - Construction machine with front window-locking device
2. 7040687 - Construction machine with door locking device
3. 6805355 - Cabin with link type door