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.
Tub and shower controls. The height of shower controls should be 38â³ to 48â³ from the floor, depending upon the height of the user. Tub controls should be between the rim of the tub and no higher than 33â³ from the floor. This, of course, poses a problem if your tub and shower are controlled by the same lever or knob.