Average Co-Inventor Count = 3.60
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 Bakelite Company Limited (3 from 615 patents)
2. Kurray Co., Ltd. (1 from 7 patents)
3 patents:
1. 5234403 - Blood collecting apparatus
2. 5108364 - Monitoring catheter for medical use
3. 5092846 - Introducer for medical tube