国家/地区 中国（4）
IPC部 B（4）
IPC大类 B29（4） E04（3）
IPC小类 B29D（4）
IPC B29D007/01（2） E04F015/10（2） E04F015/18（2）
发明人 WANG Y（2）
公开年 2022（4）
申请年 2021（2）  2022（2） 
专利权人

Commercial-grade high-performance floor used in office, comprises cork board composite layer fixedly arranged on upper end surface of PVC stone-plastic layer, and modified PVC sound-insulating core board fixedly arranged on lower end surface of PVC stone-plastic layer.

ZENG Z

Composite sound-absorbing panel comprises multi-scale hole structure, and composite sound-absorbing material, where composite sound-absorbing material includes first-level holes.

LI D, WENG L, CAO H, LI C

Pod-type degradable temporary plugging ball useful in temporary plugging treatment of oil and gas wells in fracturing system, comprises degradable outer shell (comprising e.g. polymerized product of glycolide, lactide, polybutylene succinate prepolymer) and inner core.

LI H, ZHANG Y, SHANG L, HUANG B, LIU J, WANG Y, YANG X, JIANG Q

Heating ceramic tile, has adhesive layer arranged on heating module, ceramic tile main body formed on adhesive layer and bonded to heating module through adhesive layer, and exhaust channel reserved between ceramic tile body and heating module.

SHI J, LIU C, WANG Y, LIN C, LONG Y, LIN K, YU H