Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5737860 | Method and apparatus employing gravity to form a variable message on a sign | Roger C. Whigham, Lisa C. Wandrick | 1998-04-14 |
| 5445186 | Back-flow preventing bag valve for bag-in-box container | Simon J. Richter, Kevin Totten, William S. Credle, Jr. | 1995-08-29 |