Trademark Guidelines - Khronos owns, or has licensed, trademarks used to identify its activities and specifications – for example the OpenGL® mark. The trademarks used by Khronos are collectively referred to as the Khronos Marks. Khronos maintains strict control over usage of the Khronos Marks to protect the integrity of its specifications. This document defines who may use the Khronos Marks, and under what terms and conditions. Official PDF version of the Khronos Trademark Guidelines is available here.