You might remember from Tore DeBella’s post that we just love letters of protest . They can delay or even avoid the need to file formal opposition proceedings in the United States Patent and Trademark Office. But wait — how do you learn about conflicting applications *before* they’re published for opposition purposes? Many watching services don’t notify you of conflicting applications until *after* the application has been published. That’s almost always too late to get your letter of protest granted.