| 9923194 |
Process for purifying N-alkylpyrrolidones |
Rolf Pinkos, Karl-Heinz Ott |
2018-03-20 |
| 9834969 |
Roller carriage for the reception of a sliding door |
Ralf Kreyenborg |
2017-12-05 |
| 9255069 |
Process for purifying N-alkylpyrrolidones |
Rolf Pinkos, Karl-Heinz Ott |
2016-02-09 |
| 9187930 |
Arresting and interlocking unit for a partition wall system, as well as a partition wall system |
Mark J. Mayer, Ralf Kreyenborg, Oliver Walhorn, Jörg Sunderbrink |
2015-11-17 |
| 9127160 |
Process for producing high-performance thermoplastics with improved intrinsic color |
Martin Weber, Rolf Pinkos |
2015-09-08 |
| 8561352 |
Sliding door |
— |
2013-10-22 |
| 8296853 |
Method and system for authenticating a user |
Dieter Kessler, Heiko Weber, Johannes Viegener |
2012-10-23 |
| 7516579 |
Plate holding device fixed to a substructure |
Ralf Kreyenborg, Rolf Rand |
2009-04-14 |
| 7367741 |
Connector element for a glass post and beam construction |
— |
2008-05-06 |
| 6983377 |
Method for checking user access |
Neil Beesley, Dietmar Gaertner, James Holme, Terence G. Kennedy, Dieter Kessler |
2006-01-03 |
