Issued Patents All Time
Showing 1–8 of 8 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6344431 | Use of selected inhibitors against the formation of solid organo-based incrustations from fluid hydrocarbon mixtures | Stephan von Tapavicza, Claus-Peter Herold, Jacques Groffe, Jean-Michel Rouet | 2002-02-05 |
| 5403822 | Esters of carboxylic acids of medium chain-length as a component of the oil phase in invert drilling muds | Heinz Mueller, Claus-Peter Herold, Stephan von Tapavicza, Michael Neuss, Frank Burbach | 1995-04-04 |
| 5039432 | Copolymers of (meth) acrylic acid esters as flow improvers in oils | Wolfgang Ritter, Claudia Meyer, Claus-Peter Herold, Stephan V. Tapavicza | 1991-08-13 |
| 5006621 | Co-polymers of long chain alkyl acrylates with N-containing olefins and their use as flow improvers for crude oils | Bernd Wahle, Claus-Peter Herold, Ludwig Schieferstein, Doris Oberkobusch | 1991-04-09 |
| 4906702 | Esters of unsaturated carboxylic acids, preparation of their oil-soluble homo- and copolymers and use thereof as pour point depressants | Wolfgang Ritter | 1990-03-06 |
| 4762946 | Esters of unsaturated carboxylic acids | Wolfgang Ritter | 1988-08-09 |
| 4668733 | Pour point depressants comprising polyolefins modified with side chains | Hermann Anzinger, Herbert Fischer, Claus-Peter Herold | 1987-05-26 |
| 4650596 | Pour point depressants for paraffin solutions | Kaspar Schlueter | 1987-03-17 |