Issued Patents All Time
Showing 1–15 of 15 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7504052 | Antistatic and electrically conductive polyurethanes | Hubert Ehbing, Jens Krause, Lutz Liebegott, Friedhelm Faehling | 2009-03-17 |
| 6590003 | Method for producing soft to semi-rigid polyurethane integral foamed materials | Daniel Seidlitz | 2003-07-08 |
| 6509387 | Process for preparing rigid foamed materials containing urethane groups | Karl Werner Dietrich, Gerhard Heilig | 2003-01-21 |
| 6316513 | Process for the producing of hard polyurethane foams with low heat conductivity | Dennis McCullough, Torsten Heinemann, Walter Klan | 2001-11-13 |
| 6235799 | Method for producing soft to medium-hard structural polyurethane foams | Geza Avar, Peter Haas | 2001-05-22 |
| 6071978 | Method of producing hydrocarbon-expanded rigid polyurethane foams | Torsten Heinemann, Dennis McCullough, Walter Klan | 2000-06-06 |
| 5962542 | Process for producing hydrocarbon-blown hard polyurethane foams | Karl Werner Dietrich, Gerhard Heilig | 1999-10-05 |
| 5736588 | Process for preparing rigid polyurethane foams | Walter Klan, Frank Otto, James A. Thompson-Colón | 1998-04-07 |
| 5602190 | Process for the production of hard polyurethane foams | Wilhelm Lamberts, James A. Thompson-Colón | 1997-02-11 |
| 5587117 | Process for insulating pipes using polyurethane rigid foams by the rotational casting process | Lutz-Peter Godthardt, Peter Haas | 1996-12-24 |
| 5578651 | Process for producing rigid polyurethane foams | Wilhelm Lamberts | 1996-11-26 |
| 5534299 | Process for insulating pipes | Lutz-Peter Godthardt | 1996-07-09 |
| 5527602 | Laminates of graft polymer and thermoplastic polyurethane | Harry Staratschek, Herbert Vogl | 1996-06-18 |
| 5470515 | Rotational molding process for insulating pipes | Wolfgang Grimm, Hans-Dieter Ruprecht | 1995-11-28 |
| 5269986 | Process for the production of back foamed internal parts for refrigeration furniture | Robert Zollner, Wolfgang Henning, Reinhold Dederichs | 1993-12-14 |