Average Co-Inventor Count = 1.15
ph-index = 6
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. Yamamoto Kogaku Co., Ltd. (9 from 120 patents)
9 patents:
1. D525277 - Googles
2. 6704944 - Sports goggles
3. 6601240 - Goggles
4. D466542 - Swimming goggles
5. 6460196 - Goggles having V-shaped elastic coupling member
6. D461487 - Sunglasses
7. D457910 - Goggles
8. D440593 - Goggles
9. D413914 - Swimming goggles