how to remove sticky (permanent) notifications from notification bar?

I have a buggy app installed in my phone, which sometimes creates permanent download progress notification with animated icon but **fails to remove it from notification bar** by its own. I tried to remove the notification manually (swipe it off) but it is sticky and can't be removed. I tried "clear" option in notification bar, but again no success and it is still there! I even stopped that app which created the notification, but no change. The only option that I have to remove such sticky and buggy notifications is to restart the device, which is very unpleasant. **Which app, hack, command, gesture, etc... I can use to remove that sticky notification?** *My device is **Sony Xperia S** running **ICS 4.0.4 stock ROM** *(rooted)*