HS

Haiming Sang

Overall (2022): #80,513 of 548,613Top 15%
3
Patents 2022

Issued Patents 2022

Showing 1–3 of 3 patents

Patent #TitleCo-InventorsDate
11518178 Rotary printing integrated ink box for seal printing Ge Gan, Song Li 2022-12-06
11474758 Intelligent seal with cloud computing-based anti-forgery capability, enables printing the seal with degree rotation which improving printing speed and efficiency Ge Gan, Song Li 2022-10-18
11390069 Seal printer Ge Gan, Song Li 2022-07-19