Adobe Patent on Tabbed Palettes
This patent, granted by the EPO in Aug 2001, has been used by Adobe to sue Macromedia Inc in the US. The EP version took 6 years to examine, and it was granted in full breadth, without any modification. It covers the idea of adding a third dimension to a menu system by arranging several sets of options behind each other, marked with tabs. This is particularly found to be useful in image processing software of Adobe and Macromedia, but also in The GIMP and many other programs.