Issued Patents All Time
Showing 1–12 of 12 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 10435609 | Hydrophilic ether carboxylic acids as lubricant for salt based drilling systems | Heinz-Joachim Muller | 2019-10-08 |
| 10253236 | Environmental friendly well treatment fluids comprising an ester | Heinz-Joachim Muller | 2019-04-09 |
| 10227545 | Additives for oilfield and industrial applications | Heinz-Joachim Muller | 2019-03-12 |
| 9982182 | Drilling composition, process for its preparation, and applications thereof | Heinz-Joachim Muller, Nadja Herzog, Michael Fefer, Jun Liu | 2018-05-29 |
| 9896613 | Esters for drilling emulsions and metal working fluids | Heinz-Joachim Muller, Patrick Hähnel | 2018-02-20 |
| 9745502 | Drilling composition, process for its preparation, and applications thereof | Heinz-Joachim Muller, Nadja Herzog, Michael Fefer, Jun Liu | 2017-08-29 |
| 9085524 | Method for the production of carboxylic acid esters during a transport | Heinz-Joachim Muller | 2015-07-21 |
| 8763724 | Emulsion-based cleaning composition for oilfield applications | Heinz-Joachim Muller | 2014-07-01 |
| 8236735 | Oligoglycerol fatty acid ester lubricant additives for drilling fluids | Heinz-Joachim Muller | 2012-08-07 |
| 8193125 | Crosslinked glycerol or oligoglycerol esters, and use thereof as an additive in drilling fluids | Heinz-Joachim Muller, Nadja Herzog, Alfred Westfechtel | 2012-06-05 |
| 8153562 | Oligoglycerol fatty acid ester thickeners for oil-based drilling fluids | Heinz-Joachim Muller, Nadja Herzog | 2012-04-10 |
| 8148305 | Oligoglyercol fatty acid ester additives for water-based drilling fluids | Alfred Westfechtel, Heinz-Joachim Muller | 2012-04-03 |