Which of the following four statements is TRUE about patents?

The invention being patented must work significantly better that the prior versions.

To get worldwide patent protection, you will have to file a patent application in each and every country.

Patenting research tools is illegal.

A non$-$confidential disclosure of your invention before any patent application has been filed will not jeopardize patent rights $($e$.$g$.$ if you only tell your friends$).$