US 9,023,203 K1 (4,214th)
	Liquid filter
Wilhelm Ardes
Assigned to HENGST SE
Trial No. IPR2024-00603, Feb. 22, 2024
Inter Partes Review Certificate for Patent 9,023,203, issued May 5, 2015, Appl. No. 13/513,965, Jun. 5, 2012
Inter Partes Review Certificate issued Dec. 16, 2025