Supplemental grip member for a hand-held electronic device

Abstract

The invention includes a supplementary grip member and a handheld electronic device, made of a soft material, which is positioned on the back of the handheld electronic device in order for a user to hold the handheld electronic device. The supplementary grip member includes a connecting surface and a gripping surface that is opposite to the connecting surface. The connecting surface connects with the back surface of the handheld electronic device. The griping surface includes a curved surface for the user to hold the handheld electronic device with their hands. The supplementary grip member and the hand-held electronic device have a comfortable grip to alleviate hand fatigue when users play handheld electronic devices, such as mobile phones, tablet computers, and game machines, for a long time.

What I claim is: 
     
         1 . A handheld accessory device, comprising:
 at least one supplementary gripping member removably connected on the back of a handheld electronic device for a user to hold the handheld electronic device, wherein:
 the supplementary gripping member comprises a connecting surface and a gripping surface opposite to the connecting surface, and 
   the connecting surface is used to connect with the back surface of the handheld electronic device, and the gripping surface has a curved surface for the user to hold the handheld electronic device.   
     
     
         2 . The handheld accessory device as recited in  claim 1 , wherein the distance between one side of the gripping surface and the connecting surface is larger than the distance between the opposite side of the gripping surface and the connecting surface. 
     
     
         3 . The handheld accessory device as recited in  claim 1 , wherein the gripping surface consists of at least one of the following:
 the gripping surface is concave toward a direction close to the connecting surface; the gripping surface is convex toward a direction away from the connecting surface; or   the gripping surface is flat.   
     
     
         4 . The handheld accessory device as recited in  claim 1 , wherein the supplementary gripping member is made of one of the following: soft plastic, rubber, or silicone; 
     
     
         5 . The handheld accessory device as recited in  claim 1 , wherein the gripping surface has an anti-slip groove. 
     
     
         6 . The handheld accessory device as recited in  claim 1 , wherein the back surface of the hand-held electronic device is detachably connected with the connecting surface of supplementary grip member. 
     
     
         7 . The handheld accessory device as recited in  claim 6 , further comprising a protective sleeve for the hand-held electronic device, the protective sleeve having a first side positioned toward the back of the hand-held electronic device and opposing second side connected to the connecting surface of the supplementary grip member, wherein the second side is disposed on the back of the first side. 
     
     
         8 . The handheld accessory device as recited in  claim 7 , wherein the second side is detachably connected with the connecting surface. 
     
     
         9 . The hand handheld accessory device as recited in  claim 8 , wherein the second side is detachably connected with the connecting surface through one of the following: a mechanical buckle, a magnetic structure, a suction cup structure, or a rubber layer. 
     
     
         10 . The hand handheld accessory device as recited in  claim 7 , wherein there are two supplementary grip members are positioned on opposite sides of the back of the hand-held electronic device. 
     
     
         11 . The hand handheld accessory device as recited in  claim 10 , wherein the hand-held electronic device is an E-reader, gaming machine, tablet, mobile phone, PDA or E writer.