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. Ektelon (2 from 12 patents)
2 patents:
1. 4618148 - Racquetball racquet with increased hitting area
2. 4531738 - Racquetball racquet with increased hitting area