Hydrochromic

Patents tagged Hydrochromic

Aug 25, 2026

US12716682 - Gel lauching apparatus with hydrochromic material and porous plastic

A toy launching apparatus for hydrated super absorbent projectiles having a barrel and/or a barrel extender using porous plastic and coated with hydrochromic material where the hydrated super absorbent projectiles and the interior surface of the barrel and/or of the barrel extender are tight fitting. Launcher apparatus and methods are provided with toy projectile launching rounds expelled from an air compression source extending to position received projectiles launched through a barrel.