Issued Patents All Time
Showing 1–5 of 5 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5871104 | Adjustable support apparatus such as adjustable bookends | Louis S. Polster | 1999-02-16 |
| D364517 | Indexable vertical bookshelf for oversized books | — | 1995-11-28 |
| 5217122 | Adjustable bookend apparatus | — | 1993-06-08 |
| 5127717 | Indexable vertical bookcase for oversized books | — | 1992-07-07 |
| 4886206 | Disposable container with foldable spout | — | 1989-12-12 |