Issued Patents 2011
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 8051803 | Top-fill hummingbird feeder with vertically operative base sealing mechanism | Marko Konstantin Lubic, William R. Vaughn, Jr. | 2011-11-08 |
| 8011323 | Top-fill hummingbird feeder with twist bottle valve | William R. Vaughn, Jr., Christopher J. Kamery, Robert T. Cruz | 2011-09-06 |