Average Co-Inventor Count = 5.00
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. Levenger Company (2 from 32 patents)
2 patents:
1. D358271 - Stand for reading materials
2. D349731 - Clip board