Issued Patents All Time
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 8669017 | Method for checking the seal of a stack of fuel cells | Rudi Widt | 2014-03-11 |
| 8537019 | Sniffing leak detector | Randolf Rolff, Norbert Moser | 2013-09-17 |
| 8117886 | Leak detector with a leak detector testing device | Norbert Rolff, Randolf Rolff, Werner Grosse Bley, Thomas Boehm, Daniel Wetzig | 2012-02-21 |
| 7874201 | Leakage search assembly having a sniffing probe | Werner Grosse Bley | 2011-01-25 |
| 7444854 | Leak indicator with test leak and test leak for integration into a leak detector | Thomas Böhm, Werner Grosse Bley, Randolf Rolff, Norbert Rolff | 2008-11-04 |