Issued Patents All Time
Showing 1–8 of 8 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 8433516 | Apparatus for analysis and control of a reciprocating pump system by determination of a pump card | Doneil M. Dorado, Kenneth B. Nolen, Eric S. Oestreich, Jeffrey J. DaCunha | 2013-04-30 |
| 8261819 | Systems and methods for measuring a fluid level within a well | Kenneth B. Nolen | 2012-09-11 |
| 8146657 | Systems and methods for inferring free gas production in oil and gas wells | Bernard Nolen | 2012-04-03 |
| 8036829 | Apparatus for analysis and control of a reciprocating pump system by determination of a pump card | Doneil M. Dorado, Kenneth B. Nolen, Eric S. Oestreich, Jeffrey J. DaCunha | 2011-10-11 |
| 7212923 | Inferred production rates of a rod pumped well from surface and pump card information | Kenneth B. Nolen | 2007-05-01 |
| 6857474 | Methods, apparatus and products useful in the operation of a sucker rod pump during the production of hydrocarbons | Bobby Bramlett, Doneil M. Dorado, Kenneth B. Nolen, LeMoyne Boyer | 2005-02-22 |
| 5252031 | Monitoring and pump-off control with downhole pump cards | — | 1993-10-12 |
| 4490094 | Method for monitoring an oil well pumping unit | — | 1984-12-25 |