Samsung retained the top spot as leading mobile phone manufacturer in the US, boasting over a quarter of all US mobile subscribers.

Fellow South Korean handset maker LG came in second, with no change at 20.9 percent – while Samsung had increased its market share by 1 percent to 25.5 percent.

Motorola, recently purchased by Android-maker Google, remained in third position, with 14.1 percent share (down 1.5%).

iPhone maker Apple increased its share by 1.2%, with 9.5 percent. BlackBerry maker RIM saw a slight 0.6% dip to 7.6 percent share.

Despite accusations that it may have altered photos of Samsung's Galaxy smartphones to strengthen its case, Apple recently succeeded in getting a Dutch court to ban the sale of three phones that it claims are too similar to the iPhone.

The comScore study – taken during the three month average period ending July 2011 – surveyed more than 30,000 US mobile subscribers.

Google Android continued to gain ground in the smartphone market reaching 41.8 percent market share.

For the three month average period ending in July, 234 million Americans ages 13 and older used mobile devices.

Smartphone platform market share

82.2 million people in the US owned smartphones during the three months ending in July 2011, up 10 percent from the preceding three month period.

Google Android ranked as the top smartphone platform with 41.8 percent market share, up 5.4 percentage points.

Apple strengthened its  number 2 position with 27 percent of the smartphone market, up 1.0 percentage points from the prior reporting period.

RIM ranked third with 21.7 percent share, followed by Microsoft (5.7 percent) and Symbian (1.9 percent).

Mobile content usage

In July, 70 percent of US mobile subscribers used text messaging on their mobile device, up 1.2 percentage points.

Browsers were used by 41.1 percent of subscribers (up 2 percentage points), while downloaded applications were used by 40.6 percent (up 2.8 percentage points).

Accessing of social-networking sites or blogs increased 2.1 percentage points to 30.1 percent of mobile subscribers.

Game-playing was done by 27.8 percent of the mobile audience (up 1.6 percentage points), while 20.3 percent listened to music on their phones (up 2.3 percentage points).

In July analysts claimed that Samsung has sold more smartphones in the past three months than Apple and Nokia.