Inventor

ZHANG QIANWEN

CN8 patents

⚠️ This page may combine multiple inventors who share the name “ZHANG QIANWEN”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.

SHENZHEN PANGO MICROSYSTEMS CO LTD

2 patents

US11909388B2Feb 20, 2024

Terminal resistance circuit, chip and chip communication device

SHENZHEN PANGO MICROSYSTEMS CO LTD0 citations52

US12407355B2Sep 2, 2025

Digital-to-analog conversion circuit and method

SHENZHEN PANGO MICROSYSTEMS CO LTD0 citations42

EXCELIO TECH SHENZHEN CO LTD

2 patents

US10685272B2Jun 16, 2020

Oscillation maintenance circuit with comparator-based pulse generation in half-duplex RFID transponders

EXCELIO TECH SHENZHEN CO LTD0 citations39

US10552723B2Feb 4, 2020

Oscillation maintenance circuit with trigger-based pulse generation in half-duplex RFID transponders

EXCELIO TECH SHENZHEN CO LTD0 citations39

CHINA PETROLEUM & CHEMICAL

1 patent

US6797669B2Sep 28, 2004

Catalyst for selective hydrogenation, its preparation process and application

CHINA PETROLEUM & CHEMICAL57 citations95

JIANGSU MIDEA CLEANING APPLIANCES CO LTD

1 patent

USD768944SOct 11, 2016

Dust collector

JIANGSU MIDEA CLEANING APPLIANCES CO LTD25 citations91

JAPAN GAS SYNTHESIZE LTD

1 patent

US7297825B2Nov 20, 2007

Catalyst and process for LPG production

JAPAN GAS SYNTHESIZE LTD12 citations81

JAPAN GAS SYNTHESIZED LTD

1 patent

US7834230B2Nov 16, 2010

Catalyst and process for producing liquefied petroleum gas

JAPAN GAS SYNTHESIZED LTD15 citations78