Average Co-Inventor Count = 2.18
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. Sunstar Kabushiki Kaisha (3 from 35 patents)
2. Sunstar Inc. (1 from 57 patents)
4 patents:
1. 5799353 - Toothbrush
2. D387206 - toothbrush head
3. D383608 - Toothbrush
4. D359623 - Toothbrush