Issued Patents 2011
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| D650877 | Iron-type golf club head | David Llewellyn, Arata Kamo | 2011-12-20 |
| 8021246 | Iron golf club heads and golf club sets with variable weight distribution | David Llewellyn, Tetsuya Kanayama, Kazuhiro Doi, Tomoaki Aoki | 2011-09-20 |
| D641821 | Iron-type golf club head | David Llewellyn, Arata Kamo | 2011-07-19 |