Average Co-Inventor Count = 1.50
ph-index = 6
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. Hillerich Bradsby Company (6 from 87 patents)
6 patents:
1. D372285 - Combined golf club head and holographic insert
2. D372286 - Holographic insert for golf club head
3. D371589 - Combined golf club head and holographic insert
4. 5423546 - Golf club irons having improved weighting
5. D354786 - Golf club head
6. 5333872 - Golf club irons having improved weighting