Issued Patents All Time
Showing 1–5 of 5 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6089397 | Cup lid having improved drink-through opening | — | 2000-07-18 |
| 5839601 | Disposable dome lid for drinking cups | — | 1998-11-24 |
| 5678720 | Lid for disposable containers of differing sizes | — | 1997-10-21 |
| 5613619 | Foldback cup lid having comfortable drinking characteristics | — | 1997-03-25 |
| 4552522 | Segmented spacer ring | — | 1985-11-12 |