Bombardier did not originate this technology, either. They now own it because they bought it, fair and square when they acquired Puch. Puch invented this very novel intake/scavenging scheme back in the late '70's for their twin carburetor race dirt bikes, with one carb feeding a piston port arrangement and the other a rotary valve setup. The two carbs were not identical, and one ran much leaner than the other. The bike was very powerful for its day, but the system was too expensive to compete with the Japanese dirt bikes, which were starting to be very good and way cheap compared to anything from Europe or the USA.
The technology languished for years until Bombardier got hold of it, updated the concept and is using it in most if not all their two-stroke engines. The Evinrude engines are just thrashing Mercury in the outboard market because of the E-Tech system. I got all this from a close friend that worked for Bombardier for 16 years before getting layed off at the end of 2008, Christmas, in fact.
Jimbo