"genius invention" is correct and usable in written English.
You can use it to describe something that is clever and innovative. For example, "The new smartphone app is a genius invention that allows users to identify local plants and trees.
It's just a genius invention.
Cuisipro Scoop and Sift Flour Sifter Sieves often aren't up to scratch when it comes to sifting flour, but the interior rake in this genius invention gently pushes the flour through the wire mesh opening, whilst keeping your other hand free to mix it in the bowl.
The reader learns about lifesaving inventions emerging from field investigations, such as the Safe Water System a simple yet genius invention that prevents recontamination of water by hands.
Oranges are entirely delicious, water is wonderful, chairs are genius inventions.
These genius inventions are sending us careening into a world of abundance, bold visionaries and accelerating exponential change.
Looking back at the origins of the blizzard is as good a time as any to put to use Google Lab's latest mad-genius invention, the Books Ngram Viewer.
There's rivalry in the art market, in business innovation where the Brits' genius for invention is so often dissipated in a lack of follow-through: nobody in America knows that the concept of the electronic chip in everything from missiles to the iPad was spelled out by the British scientist Geoffrey Dummer six years before Jack Kilby and Robert Noyce in the US.
Exhibiting an early genius for invention, he obtained his first patent in 1866, for a hair-curling iron.
The evening began in 1928, when the young dance-maker, working with Diaghilev, discovered his genius for invention, shooting from the classical hip.
Baïf was a personal poet whose gifts were inferior to his genius for invention of form and language; but he had a talent for vivid, realistic description, particularly in scenes of country life and in satire.
IT'S a safe bet that relatively few people on Long Island have heard of Nikola Tesla, the world-shaking electrical genius whose invention of polyphase alternating current made him, more than anyone, the man who electrified the 20th century.
