Web browsing method using operating server and application (Registration Number: 1661265 / Registration Date: September 23, 2016)

Virtual browsing method using application and virtual browsing server (Registration Number: 1605377 / Registration Date: March 16, 2016)

Operating method of a packaged application including a self-defense security module, and a computer readable recording medium (Registration Number: 1591503 / Registration Date: January 28, 2016)

Method of granting PC usage rights, and modules, servers and systems including it (Registration Number: 1518994 / Registration Date: May 4, 2015)

Management method of security and access of mobile applications (Registration Number: 1420383 / Registration Date: July 10, 2014)

Management method of digital copyright, and apparatus (Registration Number: 1362380 / Registration Date: February 6, 2014)

Method of efficiently providing location of content encryption key, and apparatus (Registration Number: 1352513 / Registration Date: January 10, 2014)

Content security method, and apparatus (Registration Number: 0911345 / Registration Date: August 3, 2009

Software security method and apparatus (Registration Number: 0855329 / Registration Date: August 25, 2008)

Method of deal of digital data (Registration Number: 0775876 / Registration Date: November 6, 2007)

Method of providing DRM contents, and system (Registration Number: 0770245 / Registration Date: October 19, 2007)

Reproduction method of DRM content, and apparatus (Registration Number: 0746689 / Registration Date: July 31, 2007)

Driving method of virtual disk, and recording medium therefor (Registration Number: 0692964 / March 5, 2007)

Executing method of digital data, and system (Registration Number: 0475479 / February 28, 2005)

Method to Exchange Digital Data (China Patent No.022680007675.2 / Date: September 10, 2007)

Web browsing method using operating server and application (US Application Number: 14 / 715,815 / Application Date: May 19, 2015)

Software security method and apparatus (US registration number: 8549580 / Registration Date: October 1, 2013)

PC access control method, and modules, servers and systems containing it (Japan Registration Number: 5612649 / Registration Date: 9/12/2014)

Executing method of digital data, and system (Japanese registration number: 4504246 / Registration Date: April 30, 2010)