Issued Patents All Time
Showing 1–4 of 4 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 9441772 | Method and apparatus for protecting pipe installed underground | Andrew P. Boos, Christian D. Kane | 2016-09-13 |
| 9194529 | Method and apparatus for protecting drainage pipe installed underground | Andrew P. Boos, Christian D. Kane | 2015-11-24 |
| 9140391 | Coupler method and apparatus for installing pipe with a protective cover into borehole | Andrew P. Boos, Christian D. Kane | 2015-09-22 |
| 7367748 | Method of installing tracer wire with pipeline utilizing horizontal directional drilling | Joseph Matthew Groebner | 2008-05-06 |