Issued Patents All Time
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5069693 | System for area pollution control | Wayne C. Blikken | 1991-12-03 |
| 4572160 | Heliotropic solar heat collector system | Marguerite A. Blikken | 1986-02-25 |
| 4239415 | Method of installing magnetic sensor loops in a multiple lane highway | — | 1980-12-16 |