Issued Patents All Time
Showing 1–10 of 10 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 11236282 | Copolymers comprising a-olefins and olefin dicarboxylic acid esters, production thereof, and use thereof as pour point depressants for crude oils, mineral oils, or mineral oil products | Ivette Garcia Castro, Kai Gumlich, Stefan Frenzel, Maria Heuken, Rouven Konrad +2 more | 2022-02-01 |
| 10781385 | Copolymers comprising a-olefins and olefin dicarboxylic acid esters, production thereof, and use thereof as pour point depressants for crude oils, mineral oils, or mineral oil products | Ivette Garcia Castro, Kai Gumlich, Stefan Frenzel, Maria Heuken, Rouven Konrad +2 more | 2020-09-22 |
| 10287384 | Polymeric compositions as pour point depressants for crude oils | Ivette Garcia Castro, Kai Gumlich, Stefan Frenzel, Maria Heuken, Rouven Konrad | 2019-05-14 |
| 10072115 | Polymeric compositions as pour point depressants for crude oils | Ivette Garcia Castro, Kai Gumlich, Maria Heuken, Rouven Konrad, Stefan Frenzel | 2018-09-11 |
| 9574146 | Polymeric compositions composed of ethylene-vinyl ester copolymers alkyl (meth)acrylates, processes for production thereof and use thereof as pour point depressants for crude oils, mineral oils or mineral oil products | Ivette Garcia Castro, Kai Gumlich, Stefan Frenzel, Maria Heuken, Rouven Konrad | 2017-02-21 |
| 8975362 | Graft copolymer as a gas hydrate inhibitor | Roland Reichenbach-Klinke | 2015-03-10 |
| 7347938 | Use of hydrophobically modified copolymers based on N-vinyl monomers for the production of membranes | Tanja Schneider, Frank Dietsche, Axel Sanner, Stefan Stein | 2008-03-25 |
| 6878788 | Method for producing polymers | Maximilian Angel, Stefan Stein | 2005-04-12 |
| 6867262 | Grafted polymers as gas hydrate inhibitors | Maximilian Angel, Axel Sanner | 2005-03-15 |
| 5990269 | Copolymer of vinylpyrrolidone and vinylimidazole | Stefan Stien, Stephan Kothrade | 1999-11-23 |