Issued Patents All Time
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| D465434 | Anti-terrorism insignia | — | 2002-11-12 |
| 6062341 | Guard rail stud adapter | Roger Frank, Stig Karlsen | 2000-05-16 |
| 5882136 | End cap system for scaffolding planks | Mary B. Pyritz, Stig Karlsen | 1999-03-16 |
| 5829363 | Collapsible pallet | — | 1998-11-03 |
| 5542995 | Method of making steel strapping and strip and strapping and strip | — | 1996-08-06 |
| 5411047 | Modular structural elements | — | 1995-05-02 |
| 5148640 | Manageable awning system | — | 1992-09-22 |
| 4439056 | Machine suitable for breaking concrete pavement in place | Clair H. Reilly | 1984-03-27 |
| 4192112 | Pliable awning system | — | 1980-03-11 |