Issued Patents All Time
Showing 1–25 of 33 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6475964 | Motor oil with high dispersivity and good wear protection characteristics | Peter Neudoerfl, Gerhard Renner | 2002-11-05 |
| 6080794 | Demulsifiers | Clemens Auschra, Uwe Boehmke, Michael Neusius | 2000-06-27 |
| 5942642 | Method for making oligomers | Claudia Beyer | 1999-08-24 |
| 5773505 | Polymer emulsions with bimodal molecular-weight distribution | Claudia Beyer, Ruediger Jelitte, Bernhard Will, Clemens Auschra, Juergen Omeis | 1998-06-30 |
| 5756433 | Lubricant additives | Clemens Auschra | 1998-05-26 |
| 5712359 | Co-oligomers and copolymers having dispersant activity | Clemens Auschra, Susanne Graner | 1998-01-27 |
| 5691284 | Synthetic oligomeric oils | Claudia Beyer, Ruediger Jelitte, Heinz Jost | 1997-11-25 |
| 5597871 | Comb polymers | Clemens Auschra, Juergen Omeis | 1997-01-28 |
| 5565130 | Comb polymers based on olefin copolymer macromonomers | J urgen Omeis | 1996-10-15 |
| 5366658 | Use of polymethylalkanes as biodegradable base oils in lubricants and functional fluids | Dirk Hoppe, Frank Kraushaar, Michael Stehr, Roland Streck, Jaroslaw Monkiewicz +1 more | 1994-11-22 |
| 5266615 | Alkyl (meth)acrylate-maleic anhydride copolymer-modified bitumen | Juergen Omeis, Michael Mueller | 1993-11-30 |
| 5188770 | Viscosity index improver having detergent properties | — | 1993-02-23 |
| 5098550 | Method for dewaxing waxy petroleum products | Michael Mueller | 1992-03-24 |
| 5085701 | Polymer-modified bitumen (PMB) | Michael Muller, Juergen Gebhardt | 1992-02-04 |
| 5043087 | Addives for paraffinic lubricants | Heinz Jost, Helmut Knoell | 1991-08-27 |
| 4968444 | Lubricating oil additives | Helmut Knoell, Ulrich Schoedel, Heinz Jost | 1990-11-06 |
| 4932980 | Polymeric fluidizer for middle distillates | Michael Mueller | 1990-06-12 |
| 4906682 | Ethylene-vinyl ester copolymer emulsions | Michael Mueller, Juergen Gebhardt | 1990-03-06 |
| 4867894 | Pour point improving additives for mineral oils | Heinz Jost, Helmut Knoell | 1989-09-19 |
| 4822508 | Shear stable multirange oils having an improved viscosity index | Heinz Jost, Helmut Knoell | 1989-04-18 |
| 4753708 | Method for heat sealing | Gerhard Markert, Waldemar Schleier, Reiner Schnee | 1988-06-28 |
| 4677151 | Concentrated emulsions of olefin copolymers | Roland Schweder, Wolfgang Tschepat | 1987-06-30 |
| 4665121 | Concentrated emulsions of olefin copolymers | Roland Schweder, Helmut Knoell | 1987-05-12 |
| 4640954 | Polymer suspension containing a water-soluble polymer suspended in an oil phase | Reiner Schnee, Gerhard Markert | 1987-02-03 |
| 4622358 | Concentrated emulsions of olefin copolymers | Roland Schweder, Helmut Knoell | 1986-11-11 |