Issued Patents All Time
Showing 1–7 of 7 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 10196743 | Highly abrasion-resistant anti-limescale layers with high chemical resistance | Klaus Endres, Christian Schmidt, Barbara Kutzky, Heike Schneider | 2019-02-05 |
| 8226879 | Hyper-fine cement | Helmut Schmidt | 2012-07-24 |
| 6607036 | Method for heating subterranean formation, particularly for heating reservoir fluids in near well bore zone | Aaron Ranson, Douglas Espin, Juan Chavez | 2003-08-19 |
| 6579572 | Water-based system for altering wettability of porous media | Douglas Espin, Aaron Ranson, Juan Chavez, Mariela Araujo, Yani Carolina Araujo | 2003-06-17 |
| 6579832 | Method for treating drilling fluid using nanoparticles | Maria Alejandra Jimenez, Juan Chavez, Douglas Espin | 2003-06-17 |
| 6554070 | Composition and method for sealing an annular space between a well bore and a casing | Juan Chavez, Douglas Espin, Marie Alejandra Jimenez | 2003-04-29 |
| 6481501 | Method and apparatus for drilling and completing a well | Juan Chavez, Douglas Espin, Maria Alejandra Jimenez, Aaron Ranson | 2002-11-19 |