Issued Patents All Time
Showing 25 most recent of 40 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7671228 | Method of forming a polyethercarbonate polyol using a CO2-philic compound or substituent | Jacob Wildeson, Edward M. Dexheimer | 2010-03-02 |
| 7268204 | Complex of a multimetal cyanide compound and methods of forming polyethercarbonate polyols | Jacob Wildeson, Edward M. Dexheimer | 2007-09-11 |
| 7053250 | Method of preparing a polyether polyol | Edward M. Dexheimer, Jacob Wildeson | 2006-05-30 |
| 6921737 | Method of synthesizing a double metal cyanide catalyst | Edward M. Dexheimer, Jacob Wildeson | 2005-07-26 |
| 6806348 | Process for removing and regenerating a double metal cyanide (DMC) catalyst from a polymer polyol | Edward M. Dexheimer | 2004-10-19 |
| 6762278 | Process for the copolymerization of alkylene oxides and carbon dioxide using suspensions of multi-metal cyanide compounds | Edward M. Dexheimer, Edward Bohres, Georg Heinrich Grosch | 2004-07-13 |
| 6713599 | Formation of polymer polyols with a narrow polydispersity using double metal cyanide (DMC) catalysts | Jacob Wildeson, Edward M. Dexheimer, Raymond A. Neff | 2004-03-30 |
| 6410801 | Continuous process for the production of polyether polyols | Edward M. Dexheimer | 2002-06-25 |
| 6380367 | Continuous process for the production of sucrose based polyether polyols | Edward M. Dexheimer | 2002-04-30 |
| 5981612 | Production of flameproofed, rigid, isocyanate-based foams | Uwe Keppeler, Michael Reichelt | 1999-11-09 |
| 5819751 | Cigarette and method of making same | Vernon Brent Barnes, Donald R. Wilkinson, Lloyd Harmon Hancock, Erwin Oesterling, Siegfried Schlisio | 1998-10-13 |
| 5786402 | Production of polyurethane foams in the presence of aminoalkyl- or aminophenylimidazoles as catalyst, and the use of these catalysts for the preparation of polyisocyanate polyaddition products | Bernd Bruchmann, Ruth Zschiesche, Heinz-Dieter Lutter, Claudia Spang | 1998-07-28 |
| 5552450 | Production of rigid polyurethane foams | Rolf Henn, Uwe Keppeler, Bernd Guettes | 1996-09-03 |
| 5534185 | Process for the preparation of fluorochlorohydrocarbon-free low density polyurethane soft foams and soft elastic polyurethane molding foams and polyisocyanate mixtures modified with urethane groups and diphenylmethane-diisocyanate base | Ruth Zschiesche, Heinz-Dieter Lutter, Bernd Bruchmann | 1996-07-09 |
| 5512602 | Preparation of polyurethane foams | Peter Horn, Ludwig Jung | 1996-04-30 |
| 5476969 | Highly reactive polyoxyalkylene-polyols containing tertiary amino groups in bonded form, their preparation, and their use for the preparation of polyisocyanate polyaddition products | Stefan Adams, Ulrich Koehler, Christian Maletzko, Klaus Vorspohl, Ruth Zschiesche | 1995-12-19 |
| 5469871 | Cigarette and method of making same | Vernon Brent Barnes, Donald R. Wilkinson, Lloyd Harmon Hancock, Erwin Oesterling, Siegfried Schlisio | 1995-11-28 |
| 5420170 | Preparation of flexible, soft polyurethane foams having viscoelastic, structure-borne soundproofing properties, and polyoxyalkylene-polyol mixtures which can be used for this purpose | Heinz-Dieter Lutter, Reinhard Leppkes, Peter Horn, Walter Decker, Volker Haase | 1995-05-30 |
| 5374667 | Process for the preparation of fluorochlorohydrocarbon-free, low-density polyurethan soft foams and soft elastic polyurethan molding foams and polyisocyanate mixtures modified with urethan groups on diphenylmethane-diisocyanate base | Ruth Zschiesche, Heinz-Dieter Lutter, Bernd Bruchmann | 1994-12-20 |
| 5364852 | Preparation of compact or cellular elastomers containing urethane and urea groups, and moldings produced therefrom | Christian Maletzko, Johannes Becker, Guenter Matzke | 1994-11-15 |
| 5340916 | Polyoxypropylene-polyols and polyoxypropylene-polyoxyethylene-polyols containing hydroxyl groups | Rolf Henn, Ludwig Schuster, Klaus Vorspohl | 1994-08-23 |
| 5306798 | Transparent, autoclavable, non-cytotoxic, essentially compact polyurethane embedding compositions, the preparation thereof and the use thereof, especially for articles used in medicine | Peter Horn, Georg Knoblauch, Falko Ramsteiner, Gottfried Knorr | 1994-04-26 |
| 5192813 | Preparation of hard foams containing urethane groups or urethane and isocyanurate groups by polyisocyanate polyaddition, and polyoxyalkylene-polyols which are suitable therefor | Rolf Henn, Ludwig Schuster, Klaus Vorspohl | 1993-03-09 |
| 5135008 | Method of and apparatus for making filter cigarettes | Erwin Oesterling, Siegfried Schlisio | 1992-08-04 |
| 5126379 | Esters containing bonded fluorocarbon and oxypropylenealkylether groups, emulsions containing these esters and their use for the preparation of cellular plastics by polyisocyanate polyaddition | Otto Volkert | 1992-06-30 |