Average Co-Inventor Count = 2.40
ph-index = 1
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. Eisai Company, Limited (2 from 677 patents)
2. Sankyo Manufacturing Co., Ltd. (1 from 61 patents)
2 patents:
1. 5909815 - Single drive, multi-screw sorter with pusher means
2. 4615622 - Process for detecting resident air in a liquid charged receptacle and