Issued Patents All Time
Showing 1–13 of 13 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6939598 | Floor covering made of an elastomer material having a relief-type patterned surface | Alfons Butscher, Peter Spissinger | 2005-09-06 |
| 6815042 | Floor covering | Gerhard Graab | 2004-11-09 |
| 6709732 | Web-type floor covering and method for its manufacture | Gerhard Graab, Dieter Rischer, Gerhard Heidecke | 2004-03-23 |
| 6503424 | Multicolored patterned floor covering and method for manufacture | Gerhard Graab, Dieter Rischer, Thorsten Nahe, Helmut Grunhag | 2003-01-07 |
| 6251321 | Process of making a homogeneous floor covering | Hans-Michael Kuhl, Gerhard Graab | 2001-06-26 |
| 6221462 | Multicolored patterned floor covering and method for manufacture | Gerhard Graab, Dieter Rischer, Thorsten Nahe, Helmut Grunhag | 2001-04-24 |
| 5824735 | Moire floor covering and method for its manufacture | Gerhard Graab, Alfons Butscher, Torsten Nahe | 1998-10-20 |
| 5298210 | Method for suppressing bubbles in calendered elastomer | Herbert Arnold, Gerhard Graab | 1994-03-29 |
| 5154868 | Method of manufacturing a randomly patterned floor covering from a preform of rubber | Herbert Arnold, Dieter Rischer | 1992-10-13 |
| 5049431 | Multi-colored floor covering and method of manufacturing it | Gerhard Graab, Hans-Michael Kuhl | 1991-09-17 |
| 4670075 | Method of manufacturing light-colored electrically-conductive floor covering | Gerhard Graab, Hans-Michael Kuhl | 1987-06-02 |
| 4271218 | Pipe insulating jacket | Friedemann Klaffke, Walter Umann, Volker Schwarz | 1981-06-02 |
| 4263727 | Sheet for the manufacture of cushioned insoles | Heinz G. Bender, Hans-Dietrich Krug | 1981-04-28 |