Issued Patents All Time
Showing 1–5 of 5 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5727952 | Edge-encapsulated writing board | Jeff Hoffman, Michael Klein | 1998-03-17 |
| 5216782 | Sash counterbalance leveling device | Jeffrey H. Hoffman, Joseph T. Scheurich | 1993-06-08 |
| 5139134 | Weldable urethane roller sleeve | — | 1992-08-18 |
| 5018628 | Working surface | Jeffrey H. Hoffman, Michael Klein, Gene R. Kouba | 1991-05-28 |
| 4337988 | Modular furniture system | — | 1982-07-06 |