Average Co-Inventor Count = 4.44
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. Dairen Chemical Corporation (2 from 32 patents)
2 patents:
1. 6350883 - Method for preparing lactam
2. 6323347 - Catalyst for preparing lactone and a method for preparing lactone