Average Co-Inventor Count = 4.44
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. Sumitomo Chemical Company, Limited (2 from 6,893 patents)
2. Japan Butyl Company Limited (1 from 2 patents)
2 patents:
1. 4808484 - Peelable protective film
2. 4089648 - Process for dry dyeing synthetic or semi-synthetic, or natural materials