The phrase 'hear upon' is not correct or usable in written English.
The phrase you would use in written English is 'hear of.' For example, "I have heard of the new restaurant that has opened in town".
And all too often I hear upon success, "Yeah, I was actively involved on that one.
That Sanders-boosting NDP MP was dismayed to hear, upon visiting a Sanders campaign office while south of the border, volunteers excited about Justin Trudeau's neophyte Liberal government.
Say you're lucky enough to take a Trans-Siberian train from Vladivostok to Moscow, the first thing you'll hear upon arrival at the Yaroslavsky Rail Terminal in Russia's capital is a warning that no "extremist activities" will be tolerated by law enforcement, suggesting it's a government priority Number One these days.
After hearing upon an alternative writ, the Supreme Court overruled these contentions and quashed the writ.
Rep. 594. 3. The case was heard upon bill and answer.
The matter was heard upon a motion for an injunction upon the bulk, answer, and affidavits just referred to.
Thus we presume that he considered all portions of both statements as hearing upon the guilt of both petitioners.
The case was heard upon the original files of the Bureau of Immigration, containing the record of the deportation proceedings.
In some countries, both parties must be heard; in others, only one party may be heard upon motion of the opponent.
But all Mills heard upon his arrival was how the Knicks gave up their future by sending away Walter McCarty, Dontae Jones and John Thomass for an expensive backup.
Subsequently the case came on to be heard, upon the intervening petition of the territory and the answer thereto of the United States Trust Company and of the receiver.
