ER

Earl Refsland

AP Allied Healthcare Products: 2 patents #5 of 25Top 20%
HS Hudson Oxygen Therapy Sales: 1 patents #5 of 9Top 60%
📍 Chesterfield, MO: #1,900 of 6,461 inventorsTop 30%
🗺 Missouri: #6,609 of 23,789 inventorsTop 30%
Overall (All Time): #1,433,390 of 4,157,543Top 35%
3
Patents All Time

Issued Patents All Time

Showing 1–3 of 3 patents

Patent #TitleCo-InventorsDate
11007334 Ventilation system Kevin Kroupa 2021-05-18
9526853 Ventilation system Kevin Kroupa 2016-12-27
4926856 Feeding system Orlando D. Cambio, Jr. 1990-05-22