Patent No. The U.S. Today Patent Office issued the 3M patent. Related StoriesGenetic carrier screening: an interview with Don Hardison, CEO of Great Start GeneticsRE.Function showcases potential technology and innovations in deep learning softwareHealthcare technology sociable event of the year opens entriesCompression therapy is considered a standard of care for treating venous hypertension and venous ulcers, which are a serious issue for many Americans, including the elderly and people with vascular disease or poor circulation.Their findings will be studied by officials deciding how exactly to regulate the distribution of indoor air purifiers. California lawmakers are thinking about legislation that would require the California Atmosphere Resources Board to look at regulations to lessen emissions from indoor air flow cleaners by 2008. The state table and the U.S. Environmental Protection Agency have released advisories discouraging use of air purifiers, however the products remain on the marketplace because no agency has the outright authority to regulate just how much ozone they generate. Indoor surroundings purification has obtained widespread recognition with the surge in polluting of the environment problems in cities.