Average Co-Inventor Count = 3.00
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. Kabushiki Kaisha Yuyama Seisakusho (1 from 50 patents)
2. Kabushiki Kaisha Yuyama Seiksakusho (1 from 1 patent)
2 patents:
1. 6308109 - Method and apparatus for delivering drugs
2. 5988858 - Method and apparatus for delivering drugs