Average Co-Inventor Count = 4.00
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. Komatsu Zenoah Co. (2 from 75 patents)
2. Kamatsu Zenoah Co. (1 from 2 patents)
3 patents:
1. 4998401 - Mowing machine
2. 4987732 - Mowing apparatus having oppositely reciprocating cutters
3. 4881363 - Mowing machine