Usefulness

• (n.) The quality or state of being useful; utility; serviceableness; advantage.
Found on http://thinkexist.com/dictionary/meaning/usefulness/

Usefulness

A requirement for obtaining a utility patent. A patented invention must have some functional purpose or utility. The purpose does not have to be groundbreaking; it can be solely for amusement or a minor improvement on an existing invention.
Found on http://www.nolo.com/dictionary/usefulness-term.html
No exact match found