Issued Patents 1997
Showing 1–6 of 6 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| D388487 | Wedge-type golf club head | — | 1997-12-30 |
| 5698263 | Method for making thermochromic writing instruments | — | 1997-12-16 |
| 5695834 | Method for making liquid crystal-coated thermochromic writing instruments | — | 1997-12-09 |
| 5676606 | Golf putter | Barry M. Schaeffer, Robert W. Vokey | 1997-10-14 |
| D381385 | Golf club head | Hilonori Shinohara, Tadahiko Yoshioka | 1997-07-22 |
| 5618581 | Method for making thermochromic writing instruments having a reptilian texture | — | 1997-04-08 |