Average Co-Inventor Count = 2.57
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. Sumitomo Rubber Industries Limited (3 from 4,423 patents)
3 patents:
1. 5376726 - Short fiber-reinforced rubber
2. 5325623 - Material for making marine structure
3. 5288446 - Production of rubber article