The US Patent Office is not approving patents for cannabis concoctions.

US Patent And Trademark Office Changes Mind On Pot Patents « Innovators Network Blog
gypski Reviewed by gypski on . PROPOSITION 19, MONSANTO, AND TERMINATOR CANNABIS This is a copy and paste from another forum. I thought you might want to be informed. We ALL need to becareful and know who is pushing for legalization and why.... Rating: 5