Average Co-Inventor Count = 2.00
ph-index = 3
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. Other (3 from 832,680 patents)
3 patents:
1. 4690061 - Land mine for use in a simulated war game
2. 4684137 - Simulated war game weapon
3. 4191371 - Balancing apparatus