Average Co-Inventor Count = 5.83
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. Isp Investments Inc. (2 from 734 patents)
2 patents:
1. 7247730 - Process for the preparation of dexmethylphenidate hydrochloride
2. 7002016 - Process for the preparation of threo-methylphenidate hydrochloride