Average Co-Inventor Count = 4.00
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. Nippon Petrochemicals Company, Limited (2 from 327 patents)
2. Suminoe Orimono Kabushiki Kaisha (2 from 3 patents)
2 patents:
1. 5834087 - Polyolefin-based carpet tile
2. 5552010 - Method for producing tile carpet