Average Co-Inventor Count = 2.00
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. Perrin Manufacturing Company (1 from 16 patents)
2. Perrin Manufacturing (1 from 4 patents)
2 patents:
1. 5823353 - Combination business card case and display case
2. 5690299 - Dispenser for feeding sheet material from sequential rolls