WonderBoard is a cement-based backer board mainly used for tiling in wet places. Specifically, its components are Portland cement, expanded polystyrene (EPS) beads, aggregates, and fiberglass reinforcement.

It looks like WonderBoard is also a trademark/

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Is there a way to find who holds the trademark?

  • $\begingroup$ Quick googling suggests it's manufactured by custombuildingproducts.com so at the very least they should probably know. $\endgroup$
    – tripleee
    Jan 29 '20 at 3:43
  • $\begingroup$ @tripleee Thanks for your comments. How to find out it's manufactured by custombuildingproducts.com? in other words, is there somewhere in that site tells this explicitly? $\endgroup$
    – zghqh
    Jan 29 '20 at 3:51
  • $\begingroup$ I googled "wonderboard-lite manufacturer" and found a site which linked to the manufacturer's site in their results. $\endgroup$
    – tripleee
    Jan 29 '20 at 3:52

The (r) symbol indicates this is a registered trademark, and as such has registered with the US Patent and Trademark Office. The USPTO maintains a public searchable database of all registered marks. A little trial and error reveals the pertinent search term here, is "Wonder Board" including the space. This mark is registered to Modulars, Inc. This same corporation appears to hold the mark "wonder-board" as well, dating from the 70s and 80s.


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