heuretic
adj. of or relating to discovery or invention

Sea travel is not kind to teapots, which tend to drip when pouring, tip over on tables, and chip in storage. Entrepreneur Robert Crawford Johnson solved all these problems by designing a pot in the shape of a cube, with the spout tucked into a corner. His invention, patented in 1917, was quickly adopted by Cunard, and it was still in use on the Queen Elizabeth 2 as late as 1968.