Average Co-Inventor Count = 2.57
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. Reynolds Metals Company (3 from 432 patents)
3 patents:
1. 4131981 - Method of securing a knob to a ball bat handle
2. 4063732 - Ball bat
3. 4000895 - Ball bat