In 2011, Leo Haz filed and received P21-PETing — a technical patent covering any thermoplastic reaction for artistic purposes. It is the only patent of its kind in the world.

The patent does not protect a product. It protects a transformation — the precise irreversible moment discarded matter becomes fine art. No other artist holds this claim.

Every PETing work is the product of a documented, patented, irreversible process.

Each art piece carries the artist’s mark — a signature and personal stamp confirming it as an original act under P21.

To own one is not merely to own an object — it is to own a singular act of transmutation.