Average Co-Inventor Count = 2.25
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. Mfd Enterprises, Inc. (3 from 3 patents)
3 patents:
1. 5727251 - Headband magnifier
2. 5548841 - Headband magnifier
3. D359060 - Headband magnifier