Average Co-Inventor Count = 4.67
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. Hitachi Construction Machinery Co., Ltd. (3 from 1,504 patents)
3 patents:
1. 8925663 - Construction machine
2. D689529 - Console for construction machine
3. D685006 - Cover for operator cab interior for construction machine with console box