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.
  Standard height for a showerhead is 6'-6 to 6'-8. I prefer the high side of that tolerance. A valve for a shower only is put at about 48, a valve for a tub/shower is â¦ put at about 30, with the tub spout about 6 to 8 below the valve.