P
PatentIndex
Search
Landscape
Sign in
Inventor
ZENG JUNWEN
CN
3 patents
⚠️ This page may combine multiple inventors who share the name “ZENG JUNWEN”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.
SUZHOU SEEHITECH EQUIPMENTS CO LTD
2 patents
US10694937B2
Jun 30, 2020
Hand-held autonomous visual acuity measurement apparatus and visual acuity measuring method
SUZHOU SEEHITECH EQUIPMENTS CO LTD
0 citations
25
US10478062B2
Nov 19, 2019
Optometry apparatus capable of measuring para-central defocus
SUZHOU SEEHITECH EQUIPMENTS CO LTD
0 citations
25
SHANGHAI INST MICROSYSTEM & INFORMATION TECH CAS
1 patent
US12315543B2
May 27, 2025
Cryogenic memory cell and memory device
SHANGHAI INST MICROSYSTEM & INFORMATION TECH CAS
0 citations
47