Inventor
LI ZHIQIAN
CN8 patents
⚠️ This page may combine multiple inventors who share the name “LI ZHIQIAN”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.
BEIJING SIGMA MICROELECTRONICS CO LTD
2 patentsUS10159281B2Dec 25, 2018
Electronic cigarette, cigarette rod, cigarette cartridge and recognition method of cigarette cartridge
BEIJING SIGMA MICROELECTRONICS CO LTD3 citations65
US10742223B2Aug 11, 2020
Method and device for calibrating RC oscillator, storage medium and processor
BEIJING SIGMA MICROELECTRONICS CO LTD0 citations27