Average Co-Inventor Count = 3.71
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. Nippon Zenyaku Kogyo Co., Ltd. (2 from 13 patents)
2. Hitachi Chemical Company, Ltd. (1 from 1,641 patents)
3 patents:
1. 8647630 - Mite allergen
2. 8075898 - Mite allergen
3. 5912334 - DNA encoding equine interleukin-1