Part 1 Conducting Research. Understand what inventions or ideas are eligible for a patent. You can patent your idea if it's a process, a machine, an article of manufacture, a composition of matter, or an improvement of any of these.
Quick Answer. The standard size of a bathtub is 60 inches long, 32 inches wide and 18 inches tall. Standard-sized tubs are designed to fit into an alcove, surrounded by three walls. Alcove tubs are available in a wide variety of materials.
The bath tub is set in an alcove. My question: The new bath tub is substantially taller than the old, 20+  versus about 16. The old faucet handles were at 32 with the tap about 4 above the apron of the tub. What height should the new handles be set to and how high should the tab be above the new apron?