Average Co-Inventor Count = 3.10
ph-index = 7
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. Mizuno Corporation (8 from 295 patents)
8 patents:
1. D552703 - Perimeter-weighted back portion with an integrated trapezoidal weight portion for an iron golf club
2. D547817 - Perimeter-weighted golf club back with integrated trapezoidal weight
3. 7131913 - Iron golf club and golf club set
4. D508722 - Golf club iron head
5. D504167 - Weight portion for a golf club iron head
6. 6709345 - Iron golf club and golf club set
7. D383820 - Golf club head
8. D379390 - Golf club head