Average Co-Inventor Count = 3.75
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. Levenger Company (2 from 32 patents)
2 patents:
1. D490453 - Ibis magnifier
2. D451551 - Traveling in-box