There had to be something bubbling under the surface. This is an extract from "Lie no 7" from the Russian response to OPCE etc.
Note especially para 3 where the US was still, in 2015 developing new methods of delivering this weapons. No wonder the US has put off its destruction of their stockpiles due to lack of resources until around 2022/3, the resources are on R&D instead! Apparently it is now no longer possible to search 'Novochok' on the US Patent website.
In Russia, there has never been any research and development or experimental work conducted as part of a programme under the name of “Novichok”. I reiterate, there has never been a programme with such a name. In the Soviet times, starting with the 1970s, not only the Soviet, but also the British and American scientists were working on creating new types of nerve agents. This is how the famous VX nerve gas was created. And in the 1990s, after the breakup of the USSR, the Western special services exported from Russia a group of chemists together with the documentation. The specialists in the West began to closely study the documents and, based on them, started working in this direction, achieved certain results, which were made public.
We know very well that the “Novichok”-type nerve agents were in production in a number of countries. And, unlike our Western partners, who are constantly rolling their eyes and saying that they know something but that it, as they say, is intelligence data and they cannot reveal it, we operate in a different fashion. We work with open sources. Thus, on December 1, 2015, the United States Patent and Trademark Office contacted the Russian agency responsible for issues concerning patents with a request to check the patentability of an invention made by an American scientist T. Rubin. Here is this document (demonstration).
This document talks about the invention of a special bullet, the distinctive feature of which is that it has a separate cavity for equipping it with different kinds of toxic agents. When using the mentioned invention, the lethal effect is achieved due to the effect of this toxic agent on the human body. In other words, this ammunition falls under the jurisdiction of the CWC. The principle of operation of the bullet consists in equipping it with binary components which interact with each other upon impact. And this is what we read on the page 11 of this official American document, “At least one of the active substances may be selected from nerve agents including... tabun (GA), sarin (GB), soman (GD), cyclosarin (GF), and VG, …VM, VR, VX, and [attention!] Novichok agents.” In other words, this document confirms that in the United States the “Novichok”-type nerve agents were not just produced but also patented as a chemical weapon.
And not some long time ago, but just a couple of years ago – the patent is dated December 1, 2015. Moreover, searching by the key word “Novichok” on the digital source google.patents.com you can find over 140 patents issued by the United States, related to the use and protection from exposure to the “Novichok” toxic agent. These are the real facts, not some idle talk, and the response to those who insolently claim that the “Novichok”-type nerve agents existed and were produced in the USSR and Russia.