Average Co-Inventor Count = 4.00
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. Wada Seimitsu Shiken Kabushiki Kaisha (2 from 3 patents)
2. Other (1 from 832,880 patents)
3. Haruyuki Kawahara (1 from 4 patents)
4. Nippon Mektron Kabushiki Kaisha (1 from 3 patents)
5. Nippon Maktron Kabushiki Kaish (1 from 1 patent)
2 patents:
1. 4738622 - Removable denture retaining structure
2. 4731020 - Removable denture retaining structure