Hardened golf club head
US8075420B2 · kind B2 · utility
8Cited by
23References
24Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Jun 24, 2009 |
| Grant date | Dec 13, 2011 |
| Priority date | — |
| Expiry date | Dec 28, 2029 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA63B2209/00
- WIPO fieldFurniture, games
- WIPO sectorOther fields
Abstract
A golf club head with a hardened striking face portion that improves durability and performance is disclosed. More specifically, the golf club head disclosed may have a martensitic striking face portion that may be at least about 1.3 times harder than the rear portion of the golf club head due to the martensitic crystalline structure of the striking face portion formed by heating and quenching the striking face portion of the golf club head.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.