Issued Patents All Time
Showing 1–4 of 4 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5597885 | Preparation of chlorofluorocarbon-free flexible polyurethane foams using diphenylmethane diisocyanate-based polyisocyanate mixtures containing urethane groups, and modified polyisocyanate mixtures | Heinz-Dieter Lutter, Bernd Bruchmann, Claudia Spang, Roland Minges, Dietrich Scherzer +1 more | 1997-01-28 |
| 5596063 | Preparation of chlorofluorocarbon-free flexible polyurethane foams using diphenylmethane diisocyanate-based polyisocyanate mixtures containing urethane groups, and modified polyisocyanate mixtures of this type | Heinz-Dieter Lutter, Bernd Bruchmann, Claudia Spang, Roland Minges, Dietrich Scherzer +1 more | 1997-01-21 |
| 5494941 | Preparation of chlorofluorocarbon-free flexible polyurethane foams using diphenylmethane diisocyanate-based polyisocyanate mixtures containing urethane groups, and modified polyisocyanate mixtures of the type | Heinz-Dieter Lutter, Bernd Bruchmann, Claudia Spang, Roland Minges, Dietrich Scherzer +1 more | 1996-02-27 |
| 5059633 | Preparation of flexible polyurethane foams having low compressive strength and block polyoxypropylenepolyoxyethylenepolyol mixtures which can be used for this purpose | Heinz-Dieter Lutter, Werner Hinz, Walter Decker, Reinhard Leppkes, Erhard Reich +2 more | 1991-10-22 |