Average Co-Inventor Count = 2.57
ph-index = 4
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 Oil Company (3 from 690 patents)
2. Nippon Petrochemicals Company, Limited (3 from 327 patents)
3. Suminoe Orimono Kabushiki Kaisha (2 from 3 patents)
6 patents:
1. 5834087 - Polyolefin-based carpet tile
2. 5552010 - Method for producing tile carpet
3. 4872930 - Method for manufacturing carpet tiles having excellent dimensional
4. 4443575 - Composition for backing carpets
5. 4437918 - Method of making a carpet tile
6. 4347275 - Carpet tile and method of making same