Inventor

ZHANG WENMIN

CN3 patents

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

NINGBO FREEWINGS TECHNOLOGIES CO LTD

2 patents

USD761759SJul 19, 2016

Loudspeaker enclosure system having detachable wireless headphones

NINGBO FREEWINGS TECHNOLOGIES CO LTD12 citations73

US9351065B2May 24, 2016

Loudspeaker enclosure system having detachable wireless headphones and control method thereof

NINGBO FREEWINGS TECHNOLOGIES CO LTD0 citations31

ZHEJIANG ZHESHUI IND AND TRADE CO LTD

1 patent

US11614090B2Mar 28, 2023

High-lift shielded permanent magnet multistage pump and control method

ZHEJIANG ZHESHUI IND AND TRADE CO LTD0 citations40