Average Co-Inventor Count = 4.56
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. Kyowa Hakko Kogyo Co., Ltd. (2 from 730 patents)
2. Merck + Co., Inc. (1 from 4,770 patents)
3 patents:
1. 6569652 - Process for preparing optically active 1,2-diols
2. 6107064 - Process for producing xanthine derivatives with bacteria and fungi
3. 4929551 - Process for producing L(-)-tetrahydrofolic acid