Aketek is a registered trademark on www.uspto.gov/index.jsp, our serial quantity is 86428179. Pls take into account:this is not the HD projector,it does not go well with for training or industry,no longer give a boost to file projecting! Multi-Function interface: VGA, AV,SD, USB, HDMIinput Secifications: Native Decision: 320 x 240 Beef Up Choice: 1920 x 1080…