As of 11/4/2015, no live official trademarks were found on USPTO.gov for the exact terms/numbers
0088008800 (Repeating Doubles)
In Chinese culture, 8's are considered to be lucky.
As ordinary 9 and 10-number domains, these numbers may mean little to average Occidentals (other than as an easy-to-remember cool pattern); heck, we don't fully understand the premise, either.
These domains are also palindromes, which means the numbers are the same when read backwards, thus adding another level of mystique to the numerical pattern.
Domains Sold Separately.
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