RE:RE:RE:3N, 4N, 5N, 6N, """"ETC""""!!!! * 9N ? 12N ?Then you do not understand the importance of the QRR and the patent to its essence. Obtaining 3N in one step is already an incredible achievement. To then obtain 4N without the use of e.g. HCl and without toxic by-products is not just adding another N. It's groundbreaking!