Issued Patents All Time
Showing 1–4 of 4 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7757764 | Method for drilling and casing a wellbore with a pump down cement float | Per Angman | 2010-07-20 |
| 7640984 | Method for drilling and casing a wellbore with a pump down cement float | Per Angman | 2010-01-05 |
| 7484559 | Method for drilling and casing a wellbore with a pump down cement float | Per Angman | 2009-02-03 |
| 7428927 | Cement float and method for drilling and casing a wellbore with a pump down cement float | Per Angman | 2008-09-30 |