華信新材(300717.SZ):2021年期間收到3項發明專利證書、1項實用新型專利證書
格隆匯12月28日丨華信新材(300717.SZ)公佈,公司在2021年期間收到中華人民共和國國家知識產權局頒發4項專利證書,其中發明專利3項,實用新型專利1項。
3項發明專利分別為一種適應噴墨及激光打印的多功能膜片塗布液及其製備方法、一種智能卡用聚碳酸酯激光刻蝕膜及其製備方法、一種新型透明卡用聚碳酸酯保護膜及其製備方法。
1項實用新型專利為擋料板去油污裝置。
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