Yeah, I'm not sure where they got that part. Besides obviously not inventing the actual element, neither Dow nor Dupont were the first to produce chlorine, nor

Yeah, I'm not sure where they got that part. Besides obviously not inventing the actual element, neither Dow nor Dupont were the first to produce chlorine, nor even the first to produce it on an industrial scale. And they didn't invent the main process by which it's produced (chloralkali process). It's kind of a throwaway sentence in the article though, so I doubt much research went into it.