Makes major changes to patent-eligibility law by rewriting parts of Title 35 to clarify what may and may not be patented. It removes the unclear, court-created "judicial exceptions," defines a statutory standard for "useful," lists specific categories of subject matter that are not eligible (with limited exceptions), and directs courts to evaluate eligibility by looking at the entire claimed invention.

Also preserves the existing court rule on obviousness‑type double patenting and adds a rule that merely tacking on a computer (or other machine or manufacture) to pre- or post-solution steps does not make a claim patent-eligible unless the machine is necessary to perform the invention. The changes aim to increase predictability but will reshape how inventors, patent offices, courts, universities, and businesses draft, prosecute, and litigate patents—especially in software, biotech, and natural-product areas.