Average Co-Inventor Count = 3.13
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. Ampac Enterprises Inc. (6 from 17 patents)
2. Harvard College (1 from 2,963 patents)
3. Racer Sporting Goods Co., Ltd. (1 from 17 patents)
7 patents:
1. 12302975 - Protective headgear
2. 11058939 - Catcher's leg guard
3. 10293241 - Catcher's leg guard
4. D649716 - Batter's helmet
5. 6470107 - Fluidic all-optical switch
6. 5953761 - Protective headgear
7. D412376 - Protective headgear