The new product under the name “Kruve” is essentially a bunch of sifters you can use to sift your coffee grounds so that you can weed out any too coarse or too fine particles from entering your brew.
In the pour-over realm, things have gotten pretty interesting lately with one of the newer coffee devices on the market. There is something out now called “Melodrip”. What this device does is enable a more even extraction of grounds when pouring for a Chemex, V60, or any other pour-over type method.