US 12,686,541 B2
Closure Device and Method for Preserving Oxidizable Products
Grant Date: July 21, 2026
Type / Field: Utility | Mechanical | Consumer Products
Inventor: Chang Chyan Liow
US 12,686,541 B2
Grant Date: July 21, 2026
Type / Field: Utility | Mechanical | Consumer Products
Inventor: Chang Chyan Liow