US Patent Issued to SHENZHEN YURUCHENG DENTAL MATERIALS on Nov. 11 for "Multi-layer porcelain block, preparation method thereof and denture" (Chinese Inventors)

ALEXANDRIA, Va., Nov. 11 -- United States Patent no. 12,465,471, issued on Nov. 11, was assigned to SHENZHEN YURUCHENG DENTAL MATERIALS Co. LTD. (Shenzhen, China).

"Multi-layer porcelain block, preparation method thereof and denture" was invented by Zongyu Li (Shenzhen, China), Yu Zhang (Shenzhen, China), Jianjun Liu (Shenzhen, China) and Wei Liu (Shenzhen, China).

According to the abstract* released by the U.S. Patent & Trademark Office: "A multi-layer porcelain block includes a first zirconia powder layer, a second zirconia powder layer, a third zirconia powder layer, a fourth zirconia powder layer, a fifth zirconia powder layer, a sixth zirconia powder layer, a seventh zirconia powder layer, and an eighth zirconia powder layer laid in ...