Average Co-Inventor Count = 4.00
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. Maruzen Petrochemical Company, Limited (1 from 122 patents)
2. Maruzen Polymer Company, Ltd. (1 from 1 patent)
2 patents:
1. 5527751 - Polymerization catalyst and method for producing polyolefin or olefin
2. 5422400 - Method for producing an ethylenic polymer composition