Issued Patents All Time
Showing 26–34 of 34 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6586937 | Magnetic signature detector for detection of magnetic buried targets | — | 2003-07-01 |
| 6556054 | Efficient transmitters for phase modulated signals | Mark Sweeny | 2003-04-29 |
| 6249259 | Downhole magnetic dipole antenna | Mark Sweeny | 2001-06-19 |
| 5933224 | Hand-held distance-measurement apparatus and system | Robin Hines, Patrick Murphy, Michael R. Glasscock, Anthony R. Korba, Steven E. Harris | 1999-08-03 |
| 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 |
| 5051034 | Magnetically detectable plastic pipe | — | 1991-09-24 |
| 5036210 | Magnetically detectable plastic pipe | — | 1991-07-30 |