All Enviro Vault products are patented / patent pending in Canada and the USA.
Enviro Vault, FloVault, ThermoVault, and DuoVault are registered trademarks.
Canada: #2,196,842
USA: #5,960,826
Canada: #2,464,235
USA: #7,165,572
Canada: #2,675,482 Patent pending
USA: Patent pending
Canada: #2,678,818
USA: Patent pending
Canada: #2,679,790 Patent pending
USA: Patent pending