Sue for what? Making a competitive bike?
The very reason why Hyosung split with Suzuki (they used to build engines, including the SV650 motor, for Suzi) is that Suzuki put severe limitations on what the Koreans could make and where they could sell it (which, by the way, is understandable.) The Comet 650 models, including the engine, are aimed directly at the SV-650 but are not copies. The engine is similar--and fathered by the former-Suzuki egghead that penned the SV lump--but it is not the same. Some have even suggested that it might be superior to the SV. The chassis is very different in terms of construction and materials (steel for the Hyosung.) The Hyosung uses carbs as opposed to EFI. And they don't use identical third-party components like brakes and suspension.
So while they may appear similar and have the same mission, in detail, the two bikes are very different.