Backward facing finger grip for a device

Abstract

A gripping surface for an electronic device, such as a large mobile phone, which enables a user to hold the device more firmly with both one and two hands, and thus provide inputs to the front of the device over a wider area and or with greater precision. The grip is positioned at the center back of the body of the device and can be molded as part of the device, or the device case, or attached separately to either the device or device case. The grip consists out of a pattern of knobs and dimples that allow the index, middle and ring finger to exert a force inward toward the hand palm which balances that force against the edge of the device, as well as forces normal and parallel to the device which balance that force against of the weight of the device.

1 . A finger grip located at the center back of a device, comprising; a pattern of knobs and dimples where the users ring, middle and index fingers fits in the dimples between the knobs in order to enable a user to exert forces against the grip with his fingers which are balanced by the forces by the rest of his hand and the device itself, thus allowing one hand operation with increased thumb reach on the front of the device. 
     
     
         2 . The device according to  claim 1  is a touch screen device. 
     
     
         3 . The finger grip of  claim 1  is an integral part of a device case. 
     
     
         4 . The finger grip of  claim 1  is a detachable attachment that can be locked in place against the back of the device or device case. 
     
     
         5 . The finger grip of  claim 1  is an self-adhesive attachment that can be mounted against the back of the device or device case. 
     
     
         6 . The finger grip of  claim 1  is customized for individual users' device, hands and fingers by offering separate sizes specific devices and specific dimple and knob spacing. 
     
     
         7 . The finger grip of  claim 1  is dimensioned for individual users' device, hands and fingers through the use of hand and finger geometry scanners, and/or a photograph of the hand/device, and/or an impression mold. 
     
     
         8 . The customized finger grip of  claim 7  is manufactured with 3D printing or other additive manufacturing technique. 
     
     
         9 . The finger grip of  claim 1  is made of a non-slip material, such as silicone. 
     
     
         10 . The pattern of knobs and dimples of  claim 1  is symmetric, allowing a grip with the left hand or the right hand or the left hand and the right hand while the device is either in portrait or landscape orientation. 
     
     
         11 . The pattern of knobs and dimples of  claim 1  consists out of 4 horizontal and 4 vertical knobs with 3 horizontal and 3 vertical dimples. 
     
     
         12 . The pattern of knobs and dimples of  claim 1  consists out of 5 horizontal and 4 vertical knobs with 4 horizontal and 4 vertical dimples. 
     
     
         13 . The pattern of knobs and dimples of  claim 1  consists out of 6 horizontal and 6 vertical knobs with 5 horizontal and 5 vertical dimples. 
     
     
         14 . The pattern of dimples of  claim 1  allows the ring, index and middle finger to lay flat between the rows of knobs.