In other arts and sciences, the "hows" of "what" is made is fairly important, so divorcing an engineering element from revolutionary determination is hard to apply here , and where does revolution start being evolution?... but thinking I know what is meant by the OP, I'd say these American courses lit lanterns, defied old or discovered new canon, perhaps started significant trends... in no particular order but loosely chronological:
Oakmont - the intentional tone of rigor, difficulty, even punishment, has never left the American game, and most of what may have been antiquated by modern championship standards and renovation has been compensated by the introduction of the most reputedly-frightening everyday green speeds in America.
NGLA - already covered
Pine Valley - I mean I've only been there once for a Cup, and I don't know how it felt to visit it in 1919, but at once so dazzling, wondrous and dare I say, "ridiculous" in its audacity (in a good way), that such was made to play a game. Also, while inchoate, I feel the zeitgeist of what is happening in the Philadelphia courses at the same time as PV was being birthed... I feel the communication of strategic principles from some of those developing courses...PV feels like a Beaux Arts edifice in Manhattan, a GCT or NYPL, the state of the art for the time...and for all time...at the same time.
Pebble Beach - not to praise or disdain, but simply as defining revolutionary, like PV, as bringing "spectacular" into the lexicon, I think Pebble may have (for good or for ill) influenced the trade to seek or replicate or mold the spectacular into design, whether or not your subject property was on crags and cuts on the Pacific...
Augusta National - while its grown to be an amalgamated design, I think many of the ethos traits of the then-unseen original concept remain...breadth of scale, bold green contouring, playing width, non template invocations of British holes on parkland... and perhaps most influentially/revolutionary, a conglomeration of greens near/abutting water...I don't think that had ever been so prevalent in a noted inland course, where water carry had to be risked...and as ANGC became a regular hothouse for leading architects from Year 4, of course what was found there started appearing in new Post War designs.
I'll list some more when I get a chance....