In Thailand, trade mark applicants often encounter rejections on the ground of non-distinctiveness, where the application is principally composed of an acronym or a combination of unpronounceable letters. The Thai Trademark Office has consistently found that combinations of such letters in only a slightly stylised manner do not form an invented word and as such cannot pass the distinctiveness requirement. These decisions are then, almost without exception, upheld by the Thai Trademark Appeal Board (TTAB). At that point, many applicants refrain from appealing to the Thai courts due to the lengthy litigation process and the significant costs involved.