Whenever the Intel SpeedStep® trademark appears, the following footnote must also appear: "Intel SpeedStep is a trademark of Intel Corporation in the U.S. and/or other countries."
Proper trademark usage rules include:
As with all other trademarks, the Intel SpeedStep® trademark should be used as an adjective and not as a noun. This means that an appropriate and approved noun must accompany the trademark. See the above list of approved nouns for the Intel SpeedStep® trademark.
The appropriate use of trademark symbols with this trademark is as follows: Intel SpeedStep® trademark.
Use the trademark symbol in the first appearance of the trademark in a headline, and/or the first prominent use and first appearance in the body of text.
Never hyphenate or abbreviate the Intel SpeedStep® trademark.
Never incorporate the Intel SpeedStep® trademark or any part of the trademark into a third party's company name, product brand name or model number.