The US Patent office has issued Patent #6630507 to the U.S.Health and Human Services filed on 2/2/2001. The patent lists the use of certain cannabinoids found within the cannabis sativa plant as useful in certain neurodegenerative diseases such as Alzheimer's, Parkinson's, and HIV dementia." CANNABIS HEALS "The U.S. Patent Office issued patent #6630507 DEA is afraid that support for Marijuana Prohibition will fail if this information gets out, and diminish the DEA's budget.