Any company may freely use the publicly released OpenGL specification to create a product, but implementations of the OpenGL API must be tested for conformance in the Khronos OpenGL Adopters program before the OpenGL name or logo may be used in association with an implementation of the API.
Implementers may join the Khronos OpenGL Adopters Program which enables them to download and execute the OpenGL conformance tests and upload the results for peer review within Khronos. If the implementation successfully passes the tests, the Adopter is granted a royalty-free trademark license to use the OpenGL name and logo in association with that implementation - and they can refer to the implementation as being OpenGL conformant or OpenGL compliant.
Benefits of the OpenGL Adopters program:
For Adopters Program application forms, process description and pricing please visit the main Adopters page.
If you have questions about becoming an OpenGL Adopter, please send an email to finance at khronos.org
OpenGL is a trademark of Silicon Graphics International, administered under license by the Khronos Group. The OpenGL logo and guidelines for its usage in association with Conformant products can be found here.