StephenWeinstein
Nowhere now. To patent something, you have to be first.
Anonymous
You contact the US Patent Office and file the necessary documents, pay the necessary fee.
There isn't a special "clear plastic sleeve in wallets" Department.
Common Sense
If you would come out from under the bridge more often, you would know that the clear plastic sleeve in wallets for a driver's license was invented decades ago; probably before you hatched.
You cannot get a patent for something that has already been "invented".
Back to drawing on bridge abutments you go.
Anonymous
You have a driving license ?