Issued Patents 2011
Showing 1–4 of 4 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| D650876 | Hybrid-type golf club head | David Llewellyn, Kazuya Ishida, Tetsu Kanayama | 2011-12-20 |
| D650877 | Iron-type golf club head | David Llewellyn, Isamu Toshinari | 2011-12-20 |
| D641821 | Iron-type golf club head | David Llewellyn, Isamu Toshinari | 2011-07-19 |
| D639363 | Wood-type golf club | David Llewellyn, Tetsuya Kanayama | 2011-06-07 |