You must've missed step 16 to add to the path to the patches.
16. Run MacIASL in Tools folder on desktop, open DSDT.dsl in DSDT folder by MacIASL - Go to Preferences, set Compiler options to ACPI 5.0 - Go to Sources tab then add this: Name: Laptop patches URL: http://raw.github.com/RehabMan/Laptop-DSDT-Patch/master
Once that's done, when you select Patch, the patches will show on the left side. This would mean you have to be connected to the network.