PATENTSCOPE will be unavailable a few hours for maintenance reason on Tuesday 19.11.2019 at 4:00 PM CET
Search International and National Patent Collections
Some content of this application is unavailable at the moment.
If this situation persists, please contact us atFeedback&Contact
1. (WO2007002646) CHECK VALVE
Available information on National Phase entries(more information)
OfficeEntry DateNational NumberNational Status
GermanyWithdrawn: 29.12.2007
European Patent Office6774081Withdrawn: 23.07.2008