Issued Patents 1997
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| D382482 | Bottle closure | Mark Douglas Gerhart, David F. Gnadt | 1997-08-19 |
| D381911 | Bottle closure | Mark Douglas Gerhart, David F. Gnadt | 1997-08-05 |
| D380159 | Bottle | Mark Douglas Gerhart, David F. Gnadt, Kevin Joseph Markey, Frank E. Gonda, David S. Laubach | 1997-06-24 |