Issued Patents All Time
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 8246857 | Chemical composition useful as corrosion inhibitor | Marcus Guzmann, Henry Craddock | 2012-08-21 |
| 7956013 | Compositions having pH-dependent viscosity, thickener systems containing the same, and uses therefor | Ulrich Steinbrenner, Günter Oetter, Marcus Guzmann | 2011-06-07 |
| 7638469 | Methods of increasing permeability in carbonatic rock formations with alkanesulfonic acids | Thomas Heidenfelder, Marcus Guzmann, Helmut Witteler | 2009-12-29 |