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. Callaway Golf Company (2 from 2,054 patents)
2. The Top-flite Golf Company (1 from 16 patents)
3 patents:
1. 6935967 - Golf club set with progressive weight pad
2. D499779 - Golf club head
3. D492377 - Golf club head