Issued Patents All Time
Showing 1–4 of 4 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6601928 | Industrial component holder assembly and rack | Calvin Jay Kortman, Joyce E. Kortman | 2003-08-05 |
| 6550659 | Apparatus for manufacturing industrial component holder assemblies | Calvin Jay Kortman, Joyce E. Kortman | 2003-04-22 |
| 6464092 | Industrial component rack assembly | Calvin Jay Kortman, Joyce E. Kortman | 2002-10-15 |
| 6305764 | Industrial component holder assembly and rack | Calvin Jay Kortman, Joyce E. Kortman | 2001-10-23 |