Issued Patents 2005
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6953090 | Cementing subterranean zones using cement compositions containing biodegradable dispersants | Jan Pieter Vijn, Christian Spindler, Gregor Keilhofer | 2005-10-11 |
| 6864344 | Sulfonated condensation products which are stabile in storage, method for the production thereof, and their use | Uwe Holland, Martin Matzinger | 2005-03-08 |