US 11,021,867 J1 (294th)
	Hanger for fire separation wall
Steven Brekke; and Mark R. Rolf
Assigned to COLUMBIA INSURANCE COMPANY
Trial No. PGR2021-00109, Aug. 13, 2021
Post-Grant Review Certificate for Patent 11,021,867, issued Jun. 1, 2021, Appl. No. 16/433,799, Jun. 6, 2019
Post-Grant Review Certificate issued May 27, 2025