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. Parmelee Industries (2 from 10 patents)
2. Hallmark Cards, Inc. (1 from 233 patents)
3 patents:
1. D320869 - Headgear for faceshield
2. D320870 - Headgear for faceshield
3. 4905845 - Display unit