Issued Patents All Time
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| D603922 | Alignment features for golf putters | Douglas Eugene Meier, Donald Michael Ligrani, Jr. | 2009-11-10 |
| D549292 | Golf putter | Douglas Eugene Meier, Donald Michael Ligrani, Jr. | 2007-08-21 |
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| D603922 | Alignment features for golf putters | Douglas Eugene Meier, Donald Michael Ligrani, Jr. | 2009-11-10 |
| D549292 | Golf putter | Douglas Eugene Meier, Donald Michael Ligrani, Jr. | 2007-08-21 |