Average Co-Inventor Count = 2.40
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. Toyo Boseki Kabushiki Kaisha (1 from 789 patents)
2. Boseki Kabushiki Kaisha (1 from 1 patent)
2 patents:
1. 4500581 - Material for protecting human bodies from harmful or poisonous chemical
2. 4298643 - Fiber sheet for forming