Integrated circuit providing overvoltage protection for low voltage lines Grant US-7489488-B2 United States of America 10 Feb 2009
Low-voltage punch-through bi-directional transient-voltage suppression devices having… Grant US-6858510-B2 United States of America 22 Feb 2005
Low-voltage punch-through bi-directional transient-voltage suppression devices and… Grant US-6602769-B2 United States of America 05 Aug 2003