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. Nitto Boseki Co., Ltd. (1 from 266 patents)
2. Otsuka Kagaku Yakuhin Kabushiki Kaisha (1 from 45 patents)
2 patents:
1. 4542067 - Flameproofed water-repellent woven or knitted sheet coated with silicone
2. 4496469 - Heat-insulating refractory material consisting alkali titanate and