Issued Patents All Time
Showing 1–8 of 8 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 10444194 | Method and apparatus for material identification of pipelines and other tubulars | Dean M. Vieau, Johana M. Chirinos, Douglas W. Spencer, Trenton M. Bruce, Jabin D. Reinhold | 2019-10-15 |
| 10364665 | Method and apparatus for stress mapping of pipelines and other tubulars | Dean M. Vieau, Johana M. Chirinos, Douglas W. Spencer | 2019-07-30 |
| 9624766 | Method and system to quantify damage to gravel pack screens | Ian Draper | 2017-04-18 |
| 8797033 | Stress detection tool using magnetic barkhausen noise | Thomas A. Johnson, Ameet V. Joshi, Douglas W. Spencer, Gaurav D. Kulkarni, David J. Henderson | 2014-08-05 |
| 8035374 | Pipe stress detection tool using magnetic barkhausen noise | Thomas A. Johnson, Ameet V. Joshi, Douglas A. Spencer | 2011-10-11 |
| 7795864 | Apparatus and method of using multi-component measurements for casing evaluation | Joseph Gregory Barolak, Douglas W. Spencer, Jerry Miller, Jason Lynch, Chris J. Walter | 2010-09-14 |
| 7595636 | Apparatus and method of using accelerometer measurements for casing evaluation | Joseph Gregory Barolak, Douglas W. Spencer, Jerry Miller, Jason Lynch, Chris J. Walter | 2009-09-29 |
| 7403000 | Apparatus and method of determining casing thickness and permeability | Joseph Gregory Barolak, Douglas W. Spencer, Jerry Miller, Jason Lynch, Chris J. Walter | 2008-07-22 |