Average Co-Inventor Count = 1.20
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. Hughes; Michael E. (2 from 2 patents)
2. Other (1 from 832,680 patents)
3 patents:
1. D334518 - Can tab opener
2. D316362 - Combined bottle cap and can tab opener
3. 4723465 - Bottle cap and can tab opener