could it be possible that its a licensing deal they have? maybe only licensing parts of the technology and use of the name licensing too? just a guess here, i didn't follow this whole ordeal this afternoon.
Since they are from Sweden i believe there is no protection.
Since the rights granted by a U.S. patent extend only throughout the territory of the United States and have no effect in a foreign country, an inventor who wishes patent protection in other countries must apply for a patent in each of the other countries or in regional patent offices. Almost every country has its own patent law, and a person desiring a patent in a particular country must make an application for patent in that country, in accordance with the requirements of that country.
The only thing I saw different was (Smartcarb APT)( Smart carb Husqvarna was two words not one) But did not see it in the trademark search could have over looked it?