MAINZ
Germany
4
2010-09-16
4
2011-08-02
These are the the leading inventors for applications assigned to QVF ENGINEERING GMBH:
QVF ENGINEERING GMBH based in MAINZ, DE has been assigned the rights to these inventions. The list includes both Pending Applications and Patent Grants:
Method and system for concentrating waste sulphuric acids from nitration processes
#2 | 2007-06-26 ✅ Patent 7,234,692 granted on 2007-06-26Column tray
#3 | 2005-11-29 ✅ Patent 6,969,446 granted on 2005-11-29Method for producing concentrated nitric acid and installation for carrying out a method of this type
#4 | 2005-06-14 ✅ Patent 6,905,141 granted on 2005-06-14Glass elements with a conductive coating, the use thereof, as well as devices, installations and pipe conducts produced therefrom
223678 ⎘