Harley-Davidson does not claim a patent on this century-old engine technology. However, through the attempted registration of its distinctive exhaust roar as trademark, Harley-Davidson attempts to use trademark law to obtain a patent-like monopoly on the engine technology itself.

Telephone Number of Designated Agent: (734) 665 -9243. Facsimile Number of Designated Agent: (734) 665-9643. E-Mail Address of Designated Agent: IPAgent@harley-davidson.com.

First off: Do Harleys have radios? Like almost all cars and trucks, some motorcycles come with radios built in. However, that isn't the case with most Harley Davidson motorcycles. In fact, radios can only be found in high-end touring models, like the Street Glide, Ultra Glide, and the Tri-Glide.