Issued Patents All Time
Showing 1–21 of 21 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6550874 | Adjustable hanging file system | Gregg W. Walla, Richard J. Tracy, William E. Ruehl | 2003-04-22 |
| 6109708 | Locking mechanism for drawer system | Gregg W. Walla, William E. Ruehl | 2000-08-29 |
| 6082942 | Electrical connection terminal assembly and tilt washer | — | 2000-07-04 |
| 6053988 | Method for making piston rings | — | 2000-04-25 |
| 5974637 | High strength composite buckle | Richard J. Tracy, Roger A. Erber | 1999-11-02 |
| 5852859 | Method and apparatus for making piston rings | — | 1998-12-29 |
| 5827028 | Electrical connection terminal assembly and tilt washer | — | 1998-10-27 |
| 5809643 | Method for making piston rings | — | 1998-09-22 |
| 5658108 | Electrical connection terminal assembly and tilt washer | — | 1997-08-19 |
| 5470183 | Electrical connection terminal assembly and tilt washer | — | 1995-11-28 |
| 5274526 | Fuse structure | Bjarne Frederiksen, John F. Landuyt | 1993-12-28 |
| 5222131 | Telephone protector including removable fuse holder | Richard H. Heidorn, Bjarne Frederiksen | 1993-06-22 |
| 5153553 | Fuse structure | William E. Ruehl, Bjarne Frederiksen, John Alice | 1992-10-06 |
| 5113169 | Indicating fuse assembly | William E. Ruehl, Bjarne Frederiksen | 1992-05-12 |
| 4922374 | Lightning protector assembly | Scott Mueller, Richard H. Heidorn | 1990-05-01 |
| 4655000 | Branch retainer | Peter K. McCully | 1987-04-07 |
| 4655423 | Plastic clip with integral nail | John N. Schavilje | 1987-04-07 |
| 4654743 | Transient voltage protector | William E. Ruehl, Richard H. Heidorn | 1987-03-31 |
| 4626633 | In-line switched telephone line tester | William E. Ruehl | 1986-12-02 |
| 4518293 | Tube connector | George C. Pleickhardt | 1985-05-21 |
| 4250356 | Telephone cradle | Victor S. Hammer, Jr. | 1981-02-10 |