lol. well, actually, they don't own a trademark on just the word "Apache". Nor on the word "helicopter". They own a trademark that specifically applies to an assault helicopter that they have designated the "Apache" model, and the specifics therein. Doesn't mean that someone else can't use the term, just that they cannot use it as it applies specifically to that helicopter type. And most other mfg's won't make a model that has the same name -- not because of trademark issues, but because they don't want their helicopter to be associated in the minds of others with the one already made. Seems kinda, well, unoriginal...

thou and I, my friend, can, in the most flunkey world, make, each of us, one non-flunkey, one hero, if we like: that will be two heroes to begin with. (Carlyle)