Registered Trademark Symbol
The registered trademark symbol, designated by ® (the circled capital letter "R"), is a symbol used to provide notice that the preceding mark is a trademark or service mark that has been registered with a national trademark office.
In some countries it is against the law to use the registered trademark symbol for a mark that is not officially registered in any country.
Trademarks not officially registered are instead marked with the trademark symbol ™, while unregistered service marks are marked with the service mark symbol ℠. The proper manner to display these symbols is immediately following the mark, and is commonly in superscript style but is not legally required.
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