Was Novichok agent patented as a chemical weapon in 2015 in the US and produced in that country?

Obviously Russia, like the UK and US has its own agenda in this so putting all else aside, are the claims below true?

1. Was the Novichok agent patented as a chemical weapon in 2015 in the US?
2. Was  Novichok produced in the US.

"On April 18, Moscow disclosed that it has handed over to the OPCW alleged proof that the Novichok agent purportedly used in the Salisbury attack actually happens to be patented as a chemical weapon in 2015 in the US and produced in that country."

In answer to question one above a patent was certainly submitted for an inhaler and delivery system of  powder to counter the effects of many differing chemical weapons and Novichok is mentioned.

US20130213397A1 is for "Inhaler to deliver substances for prophylaxis or prevention of disease or injury caused by the inhalation of biological or chemical agent" 

US20130340754A1 is for "Powder dispersion devices and method"again an inhaler.
US20150246189A9 was abandoned

There are no applications that I can find relating to patenting Novichok as a chemical weapon. 

There are other mentions of Novichok but mainly relate to nerve agent antidotes.

There is a patent relating to Longitudinally sectioned firearms projectiles which mentions that Novichok can be used in that weapon. The patent was filed in May 2012. Unfortunately this begs another question...

• Why would a patent for a firearms projectile in the US, filed in 2012, mention that Novichok can be used in the projectile. We are told by both the US and UK that Novichok wasn't made anywhere else but Russia?  But thats another question.

Certainly the reports being banded about by various non-mainstream media appear to be nothing but Mis-information.  Novichock wasnt patented as a weapon in the US as is being claimed in certain media.

Have been unable to find any information relating to Nivichoch being made in the US.




LINKS
Russia raises questions on Skripal poisoning
Evidence – Novichok Delivery System Patented in the US
https://patents.google.com/patent/US20150246189A9
The United States Patent and Trademark Office (USPTO) 
Russia Exposes British Lies On Skripal, But Trail Leads To US
Russia proves Novichok agent patented in US as a chemical weapon — OPCW envoy 
A few facts about the nerve agent Novichok
https://www.scientificamerican.com/article/what-we-know-about-novichok-the-newby-nerve-agent-linked-to-russia/
https://theconversation.com/novichok-the-deadly-story-behind-the-nerve-agent-in-sergei-skripal-spy-attack-93562
https://theconversation.com/what-we-know-about-novichok-the-newby-nerve-agents-linked-to-russia-93264