Flood Protection for Underground Air Vents
Copyright © Targeted News Service 2024
2024-04-02
ALEXANDRIA, Virginia, April 2 -- FLOODBREAK L.L.C., Bellaire, Texas has been assigned a patent (No. US 11946376 B2, initially filed Feb. 18, 2022) developed by Louis A. Waters, Jr., Bellaire, Texas, for "Flood protection for underground air vents." . . .