Issued Patents All Time
Showing 1–10 of 10 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 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 |