Issued Patents 1994
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5354521 | Method of making a magnetically detectable plastic pipe | — | 1994-10-11 |
| RE34701 | Magnetically detectable plastic pipe | — | 1994-08-23 |
| 5321361 | Apparatus and method for detecting magnetically detectable plastic pipe and other sources of magnetic fields from a distance using a vertically aligned gradiometer on a horizontal support | — | 1994-06-14 |