Trademark Strengthens Click-Thru Rate

A trademark is a word, phrase, logo, or symbol that identifies and distinguishes a product or service from others in the marketplace, especially those who can bid on your keywords. If you use your trademark symbol in your ad text, it should increase your click-thru rate.
With Google AdWords, advertisers may select trademarked terms as keywords or use them in the content of the ad. As a provider of space for advertisements, Google is not in a position to arbitrate trademark disputes between advertisers and trademark owners. Accordingly, Google encourages trademark owners to resolve their disputes directly with the advertiser. As a courtesy to trademark owners, Google is willing to perform a limited investigation of reasonable complaints.
If you are the trademark owner of your product, you should consider using registered ® or trademarks ™ in your ad text. This will distinguish your ad from other resellers. This also shows searchers credibility and reliability. After implementing these changes to your ad text, your click-thru rates should be favorably impacted.

Brand awareness can be underestimated, but if you are the registered or trademark owner of a brand or company, include this symbols in your branding ad copy. As a shortcut for these symbols use the following keyboard short cuts:

Registered- Alt ctrl+r= ®
Trademark- Alt ctrl+t= ™