Average Co-Inventor Count = 3.75
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 (3 from 2,054 patents)
2. Callaway Wolf Company (1 from 1 patent)
4 patents:
1. D925675 - Putter head cover
2. D925676 - Putter head cover
3. 9682288 - Multi-piece golf club head with separately cast hosel
4. 9333401 - Multi-piece driver with separately cast hosel