Not sure which patent you are referring to. Our mixtures were never patented. Mainly because patents are public information. But patents can still be kept private; our mixtures were never patented for the purpose of plausible deniability and lack of a paper trail. Keep in mind that nearly everything we were contracted to do was not legal by nearly any sense of the word. I can, however, remember one project that was designed to work differently based on sunlight levels - it was a weather modification project.