1. A registered trademark must be used in accordance with the trademark applied for registration, and the font or pattern shall not be changed at will.
2, the use of a new design of the composite trademark, you can not mark R. ..
3. A composite trademark may also contain other elements, such as text+graphics. If the graphics have similar trademarks, there may be infringement.
If you don't use the trademark according to the design on the registration certificate, others may revoke your trademark.
If there is a new trademark design, it is suggested to re-register a trademark, so that future troubles will have a legal basis.