A patent attorney stuffed an iPhone down his girlfriend’s throat during a spat in their posh Upper East Side home, authorities said yesterday.

Brian Anscomb, 37, force-fed the gizmo to his 23-year-old gal pal in their York Avenue apartment early Saturday, bruising and cutting her mouth, court papers say.

It wasn’t his first phone flipout — on July 10, he allegedly cracked her cellphone in half when she tried to call cops during a nasty squabble.