Inventor

ZHANG ZHIWU

CN4 patents

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

GEOMETRIC INFORMATICS INC

1 patent

US6876757B2Apr 5, 2005

Fingerprint recognition system

GEOMETRIC INFORMATICS INC147 citations91

BEIJING MED ZENITH MEDICAL SCIENT CO LTD

1 patent

US10786241B2Sep 29, 2020

Knot-tying device and knot-tying system with knot-tying device

BEIJING MED ZENITH MEDICAL SCIENT CO LTD0 citations44

HEFEI SURESTAR TECH CO LTD

1 patent

US11555893B2Jan 17, 2023

Laser scanning device, radar device and scanning method thereof

HEFEI SURESTAR TECH CO LTD0 citations38

SHENZHEN OKT LIGHTING CO LTD

1 patent

US10024524B2Jul 17, 2018

Easy-maintaining LED lamp

SHENZHEN OKT LIGHTING CO LTD0 citations33