Eagan, Minnesota
United States
7
2026-01-29
The entities that hold a legal rights for patent applications filed by inventor Ausen David L.:
David L. Ausen from Eagan, US has applied for patents for these inventions. The list has both pending applications and granted patents:
HARDHAT WITH AIR CONDUIT
#2 | 2025-08-07HARDHAT WITH AIR CONDUIT
#3 | 2025-07-10HOOD FOR HARDHAT AND RESPIRATOR APPARATUS
#4 | 2025-07-03HARDHAT WITH SHAPED AIR CONDUIT
#5 | 2013-01-17Air filtration device
#6 | 2013-01-17HELMET-MOUNTED RESPIRATOR APPARATUS WITH A DUAL PLENUM SYSTEM
#7 | 2011-10-06Radial blower with shaped scroll profile
35152 ⎘