Issued Patents All Time
Showing 1–6 of 6 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4746021 | Window shelf assembly | Diane E. Helmholdt | 1988-05-24 |
| D295478 | Reconfigurable shelf unit | Diane E. Helmholdt | 1988-05-03 |
| D277143 | Chair | — | 1985-01-15 |
| D276575 | Chair | — | 1984-12-04 |
| D276576 | Chair | — | 1984-12-04 |
| D276481 | Chair | — | 1984-11-27 |