Kressberg
Germany
5
2011-03-10
The entities that hold a legal rights for patent applications filed by inventor Walch Astrid:
Astrid Walch from Kressberg, DE has applied for patents for these inventions. The list has both pending applications and granted patents:
Ceramic filter element
#2 | 2010-03-18Filtering device, especially for use as a well screen filter
#3 | 2007-02-08Filter candle
#4 | 2005-12-01Process for the manufacturing of filter elements as well as filter elements obtained in a such process
#5 | 2005-03-24Filter element and filter apparatus for cross-flow filtration processes
3522697 ⎘