Thunder Precision Resistor Co., Ltd. issued 3 to 4 patents about new resistors in 2014.

The patents concerned new king of resistors and new technique of making ultra high precision resistors, ultra precision resistor networks, ultra precision melf resistors and radio frequency non-inductance resistors. 

The approved non-inductance working frequency is 17 G Hz, this kind of perfect non-inductance resistors had been using in aeronautics and astronautics industry for many years!