Issued Patents All Time
Showing 1–14 of 14 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 9879509 | Gas lift nozzle valve | — | 2018-01-30 |
| 7594543 | Method and apparatus for production in oil wells | Marcelo de Albuquerque Lima Goncalves, Odair Geraldo dos Santos | 2009-09-29 |
| 7249634 | Apparatus for production in oil wells | Marcelo de Albuquerque Lima Goncalves, Odair Geraldo dos Santos | 2007-07-31 |
| 7213607 | Mandrel for a gas lift valve | — | 2007-05-08 |
| 7086417 | Gas flow control device | — | 2006-08-08 |
| 7059402 | Method and apparatus for exploiting oilfields | Paulo Lima | 2006-06-13 |
| 6840282 | Mechanisms to set a hollow device into and to retrieve said hollow device from a flow pipe | — | 2005-01-11 |
| 6678954 | Methods to set a hollow device into and to retrieve said hollow device from a flow pipe | — | 2004-01-20 |
| 6679949 | Method and device to allow a rigid pig to pass into a flow pipe which requires the use of a hollow flow-constricting device | — | 2004-01-20 |
| 6568473 | Gas lift valve with central body venturi | — | 2003-05-27 |
| 6568478 | Method and device to stabilize the production of oil wells | — | 2003-05-27 |
| 6434825 | Method of diminishing the cross section of an opening of a hollow device located in a flow pipe | — | 2002-08-20 |
| 6041803 | Device and method for eliminating severe slugging in multiphase-stream flow lines | Marcelo De Albuquerque Lima Gon.cedilla.alves | 2000-03-28 |
| 5465747 | Pressure valve assembly for use in gas-lift producing oil-wells | — | 1995-11-14 |