Issued Patents All Time
Showing 1–13 of 13 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 9068023 | Continuous process for the synthesis of graft polymers based on polyethers | Faissal-Ali El-Toufaili, Michaela Heussler, Christian Schwede, Aaron Flores-Figueroa, Rainer Dobrawa +2 more | 2015-06-30 |
| 8519060 | Amphiphilic graft polymers based on polyalkylene oxides and vinyl esters | Dieter Boeckh, Lidcay Herrera Taboada, Asimina Kavarnou-Seiler, Birgit Reinhard, Arturo Luis Casado Dominguez +2 more | 2013-08-27 |
| 8211987 | Deodorization of polymer compositions | Fatemeh Ahmadnian, Wolfgang Loth, Karl-Heinz Wassmer, Andreas Brodhagen | 2012-07-03 |
| 8143209 | Cleaning compositions with amphiphilic graft polymers based on polyalkylene oxides and vinyl esters | Dieter Boeckh, Lidcay Herrera Taboada, Asimina Kavarnou-Seiler, Birgit Reinhard, Arturo Luis Casado-Dominguuez +2 more | 2012-03-27 |
| 5880236 | Water-thickening copolymers of acrylic and N-alkylmaleamic monomers | Heinrich Hartmann | 1999-03-09 |
| 5661220 | Reaction products of olefinically unsaturated carboxylic acids and polyetherols and their use as demulsifiers for crude oil emulsions | Dieter Faul, Joachim Roser, Heinrich Hartmann, Hans-Henning Vogel, Wilhelmus Slotman | 1997-08-26 |
| 5502188 | Production of almost colorless solutions of n-methylmorpholine oxide | Klemens Massonne, Mark Sandison, Gregory E. Moffitt, Lawrence E. James, John Banger | 1996-03-26 |
| 5228915 | Fluid loss control additives for oil well cementing compositions | Stefano C. Crema, Clare H. Kucera, Heinrich Hartmann | 1993-07-20 |
| 5178641 | Middle distillates of crude oil having improved cold flow properties | Bernd Wenderoth, Klaus Barthold, Erich Schwartz, Hans-Juergen Raubenheimer, Heinrich Hartmann | 1993-01-12 |
| 5046562 | Fluid loss control additives for oil well cementing compositions | Stefano C. Crema, Clare H. Kucera, Heinrich Hartmann | 1991-09-10 |
| 5025040 | Fluid loss control additives for oil well cementing compositions | Stefano C. Crema, Clare H. Kucera, Heinrich Hartmann | 1991-06-18 |
| 4933378 | Fluid loss control additives for oil well cementing compositions | Clare H. Kucera, Stefano C. Crema, Michael D. Roznowski, Heinrich Hartman | 1990-06-12 |
| 4931489 | Fluid loss control additives for oil well cementing compositions | Clare H. Kucera, Stefano C. Crema, Michael D. Roznowski, Heinrich Hartmann | 1990-06-05 |