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.
Walk-in tubs are an option for those with limited mobility. It can be difficult for someone with limited mobility to step over the sides of a standard 14- to 19-inch high bathtub. For them, a walk-in bathtub may be an option. Taller and narrower than standard tubs, walk-in tubs are generally 48 to 60 inches in length, 28 to 36 inches wide, and 38 inches deep. They have watertight doors that are integrated into the tub wall.