Issued Patents All Time
Showing 1–4 of 4 patents
| Patent # | Title | Co-Inventors | Date | Approx Value ⓘ |
|---|---|---|---|---|
| 7757764 | Method for drilling and casing a wellbore with a pump down cement float | Per Angman | 2010-07-20 | $5,076,000 |
| 7640984 | Method for drilling and casing a wellbore with a pump down cement float | Per Angman | 2010-01-05 | $6,390,000 |
| 7484559 | Method for drilling and casing a wellbore with a pump down cement float | Per Angman | 2009-02-03 | $7,275,000 |
| 7428927 | Cement float and method for drilling and casing a wellbore with a pump down cement float | Per Angman | 2008-09-30 | $8,565,000 |