If you are able to view this, it is a "United States Patent Application Publication" that is found by following the `view pdf` button on the above link: https:

If you are able to view this, it is a "United States Patent Application Publication" that is found by following the `view pdf` button on the above link: https://drive.google.com/viewerng/viewer?url=patentimages.storage.googleapis.com/pdfs/US20090043584.pdf https://drive.google.com/viewerng/viewer?url=patentimages.st... Searching on the USPTO website returns no related patents: http://patft.uspto.gov/netahtml/PTO/search-bool.html http://patft.uspto.gov/netahtml/PTO/search-bool.html The indication, to me, is that the patent has not made it past the application process.