They've been using the first patented method. That one greatly reduces carcinogens. The new patent virtually eliminates them.
While they could introduce a new brand, they would be giving up decades of 'goodwill' from existing ones. Keeping the old ones as competitors to the new one(s) would still leave them open to class action suits for, now, deliberately selling a dangerous product when they could make it much safer.
You may be right, but I can't see them doing that.
Register for free to join our community of investors and share your ideas. You will also get access to streaming quotes, interactive charts, trades, portfolio, live options flow and more tools.