Since the 1930s and yes they own the fiber They do a good job explaining here: https://www.novec.com/About_NOVEC/index.cfm https://www.novec.com/About_NOVEC/i

Since the 1930s and yes they own the fiber They do a good job explaining here: https://www.novec.com/About_NOVEC/index.cfm https://www.novec.com/About_NOVEC/index.cfm