MDMA is not currently protected by a patent. The closest thing is Alexander Shulgin's 1959 patent on "4 alkyl dialkoxy N methyl phenethylamines and their pharamcologically acceptible salts," which has expired.
I don't know. But the way to find out is www.USPTO.gov. The US Patent and Trademark Office. They allow searches by many criteria. It will take just a little work, but once you know how to search on USPTO, your power will increase.
Dupont
The patent was issued to Maurice A. McLean and Stephon D. Brown.
Since Dupont invented it, one would suppose Dupont once owned the patent for it. However, it would have expired or lapsed many years ago because they started using it in the early 1930s. So, in other words, there is no patent for R-11.
The patent for Viagra in in the United States is owned by the company Pfizer. Pfizer is a pharmaceutical business that has continuously and exclusively maintained the patent for the Viagra brand name and the drug Sildenafil.
had to have been the inventor George Beauchamp in 1931 as he owns the patent for electric Guitars and single coil pickups.
Depends on the type. Having all wheels driven can't be patented, but you can patent various ways of transferring the power.
Technically, a patent is granted to the inventors, but in practice, the corporation that employs the inventors owns the invention, the application and the resulting patents, if any, through an "assignment of rights" filed in the USPTO.
3,4-methylenedioxymethamphetamine (MDMA)
The patent for MDMA Ecstasy or E)-referred to as methylsafrylamin-which is not under dispute, was originally filed on December 24, 1912 by the German pharmaceutical company Merck, after being first synthesised for them by German chemist Anton Köllisch at Darmstadt earlier that year.The patent was granted in 1914.
The chemical formula of MDMA is C11H15O2.
There are literally hundreds of patents for carburetors all over the world, and you would need to look in the patent files of the country of interest, and in the specific category and subcategory related to the particular invention that applied to the carburetor.