GC EAD after I140 approval

Hi Saurabh,

Me and my wife have separate H1B Visas and different employers. We have our I-140 approved. My wife has the GC priority date 3 years ago and me 1 year ago. Is it possible to apply for GC EAD with USCIS ourselves (without going through employer) and get it while we are still on our H1Bs. Please clarify.