Teflon (registered trademark of Dupont for their crazy slippery polymer)...
was accidentally invented by DuPont chemist Roy Plunkett, in (or near) 1938. Very chemically stable, high melting point, and weirdly slippery in solid form, it is used as a non-stick coating on cooking and messy industrial process surfaces. The difficulty of sticking anything to Teflon makes it a good candidate for an easy-cleaning surface in high-spill areas, although it is pretty expensive to throw around in home applications.