Issued Patents All Time
Showing 26–43 of 43 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5176436 | Strap type drawer interlock structure | — | 1993-01-05 |
| 5158503 | Double-pivot door hinge for appliance doors | — | 1992-10-27 |
| D316779 | Golf bag | Douglas A. Henrickson, Danny S. Henrickson | 1991-05-14 |
| 4936106 | Retractable control unit for refrigerators | Sammie C. Beach, Jr., Donald J. Olsen, Edward P. Wuesthoff | 1990-06-26 |
| 4889396 | Drawer interlock | Fredrick E. Sutton, Jr., Todd A. Sutton | 1989-12-26 |
| 4798035 | Floor-to-ceiling wall system | Lawrence J. Spoolstra | 1989-01-17 |
| 4757657 | Floor-to-ceiling wall system | Glenn D. Steil, Lawrence J. Spoolstra | 1988-07-19 |
| 4728072 | Height adjustment apparatus | — | 1988-03-01 |
| 4716699 | Wall panels with single load-bearing connector posts | Philip E. Crossman | 1988-01-05 |
| 4709517 | Floor-to-ceiling wall system | Robert J. Poortvliet | 1987-12-01 |
| 4660905 | Modular storage units | John P. Conner, Craig Miller, David L. Vander Kooi, Donald Herringa | 1987-04-28 |
| 4601247 | Resilient fastener clip and joint therefor | Montgomery J. Welch, David H. Hodge | 1986-07-22 |
| 4558797 | Storage unit module | — | 1985-12-17 |
| 4538393 | Folding truss | — | 1985-09-03 |
| 4511198 | Pop-up electrical receptacle unit | David H. Hodge | 1985-04-16 |
| 4372480 | Tilt-out box for mail and the like | Robert L. Russell | 1983-02-08 |
| 4368675 | Stacking pallet | Robert L. Propst | 1983-01-18 |
| 4203609 | Transport vehicle | David A. Immink | 1980-05-20 |