| QuadTri Technologies, LLC Patent applications |
| Patent application number | Title | Published |
|---|
| 20090120774 | Dynamically self-stabilizing elastic keyswitch - A dynamically self-stabilizing elastic keyswitch for a key of a keyboard includes a rigid keytop, a thin elastic sheet, and a downward-facing convex rigid key bottom. The rigid keytop has a central axis at least substantially perpendicular to a surface of the rigid keytop. The thin elastic sheet is disposed relative to the central axis, and the central axis is at least substantially perpendicular to a surface of the thin elastic sheet. The downward-facing convex rigid key bottom is disposed relative to the central axis and below the rigid keytop, and the central axis is at least substantially perpendicular to a surface of the downward-facing convex rigid key bottom. | 05-14-2009 |
| 20080205960 | Keyboard layout for one-handed touch-typing - A device includes a keyboard mechanism having a number of keys, where the keyboard mechanism individually discerns typing of each key. The keyboard mechanism defines a keyboard layout of the keys. The keyboard layout is adapted to touch-typing by a user using a single hand. The keyboard layout has a sub-number of the keys of the keyboard mechanism organized over a number of columns within a center portion of the keyboard layout. The columns are organized around an imaginary vertical line running through the center portion of the keyboard layout. The sub-number of the keys are larger in size than a majority of other keys of the keyboard mechanism. | 08-28-2008 |
