Issued Patents All Time
Showing 26–50 of 52 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7253138 | Corrosion and gas hydrate inhibitors having improved water solubility and increased biodegradability | Uwe Dahlmann | 2007-08-07 |
| 7214814 | Additives for inhibiting gas hydrate formation | Uwe Dahlmann | 2007-05-08 |
| 7183240 | Additives for inhibiting the formation of gas hydrates | Uwe Dahlmann | 2007-02-27 |
| 7160507 | Corrosion inhibitors with improved water solubility and improved film persistence | Uwe Dahlmann | 2007-01-09 |
| 7008561 | Ether carboxylic acids based on alkoxylated mercaptobenzothiazoles and use of the same as corrosion inhibitors | Uwe Dahlmann, Rainer Kupfer | 2006-03-07 |
| 6894007 | Additives for inhibiting gas hydrate formation | Peter Klug, Uwe Dahlmann | 2005-05-17 |
| 6821933 | Additives for improving the cold flow properties and the storage stability of crude oil | Matthias Krull, Hans-Jörg Oschmann | 2004-11-23 |
| 6803492 | Additives based on components present in petroleum for improving the cold flow properties of crude and distillate oils | Hans-Jörg Oschmann, Utha Kentschke | 2004-10-12 |
| 6678766 | Synchronous communication bus and process for synchronous communication between circuit modules | — | 2004-01-13 |
| 6646016 | Aromatic aldehyde resins and their use as emulsion breakers | Frank Holtrup, Elisabeth Wasmund, Wolfram Baumgärtner | 2003-11-11 |
| 6566309 | Additives for inhibiting gas hydrate formation | Peter Klug | 2003-05-20 |
| 6488724 | Heavy oils having improved properties and an additive therefor | Gunther Hertel, Hakan Byström, Geoffrey N. Richards | 2002-12-03 |
| 6465528 | Aromatic aldehyde resins and their use as emulsion breakers | Frank Holtrup, Elisabeth Wasmund, Wolfram Baumgärtner | 2002-10-15 |
| 6372918 | Compound for inhibiting corrosion | Peter Klug | 2002-04-16 |
| 6204420 | Synergistic mixtures of phosphoric esters with carboxylic acids or carboxylic acid derivatives as asphaltene dispersants | Dennis Miller, Axel Boris Vollmer, Peter Klug | 2001-03-20 |
| 6180683 | Synergistic mixtures of alkylphenol-formaldehyde resins with oxalkylated amines as asphaltene dispersants | Dennis Miller, Axel Boris Vollmer, Reinhard Vybiral, Dieter Hoffmann | 2001-01-30 |
| 6063146 | Ethercarboxylic acids as asphaltene dispersants in crude oils | Dennis Miller, Axel Boris Vollmer, Peter Klug | 2000-05-16 |
| 5998530 | Flowability of mineral oils and mineral oil distillates using alkylphenol-aldehyde resins | Matthias Krull, Werner Reimann, Ulrike Tepper | 1999-12-07 |
| 5948237 | Use of sarcosinates as asphaltene-dispersing agents | Dennis Miller, Axel Boris Vollmer, Peter Klug | 1999-09-07 |
| 5925233 | Use of alkanesulfonic acids as asphaltene-dispersing agents | Dennis Miller, Axel Boris Vollmer | 1999-07-20 |
| 5705603 | Polyetheramines with polymers of .alpha., .beta.-unsaturated dicarboxylic acids | Matthias Krull, Erdmann Mielcke | 1998-01-06 |
| 5439981 | Graft polymers, their preparation and use as pour point depressants and flow improvers for crude oils, residual oils and middle distillates | Juliane Balzer, Matthias Krull, Werner Reimann | 1995-08-08 |
| 5391632 | Terpolymers based on .alpha.,.beta.-unsaturated dicarboxylic anhydrides, .alpha.,.beta.-unsaturated compounds and polyoxyalkylene ethers of lower unsaturated alcohols | Matthias Krull | 1995-02-21 |
| 5349019 | New copolymers, mixtures thereof with poly(meth)acrylate esters and the use thereof for improving the cold fluidity of crude oils | Herbert Wirtz, Sigmar-Peter von Halasz, Juliane Balzer | 1994-09-20 |
| 5254652 | Terpolymers of ethylene, their preparation, and their use as additives for mineral oil distillates | Werner Reimann, John Hobes | 1993-10-19 |