FK

Frederick B. Keen

📍 Minneapolis, MN: #1,588 of 6,114 inventorsTop 30%
🗺 Minnesota: #15,886 of 52,454 inventorsTop 35%
Overall (All Time): #1,255,833 of 4,157,543Top 35%
4
Patents All Time

Issued Patents All Time

Showing 1–4 of 4 patents

Patent #TitleCo-InventorsDate
D549346 Disposable surgical arm board protector Joseph J. Kraska, Warren V. Bigelow 2007-08-21
D548571 Oxygen supply bracket for a hospital transport cart Warren V. Bigelow, Joseph J. Kraska 2007-08-14
D456517 Anesthesia infection control barrier sheet with pockets Joseph J. Kraska, Warren V. Bigelow 2002-04-30
D454747 Disposable plastic sheet anesthesia infection control barrier Joseph J. Kraska, Warren V. Bigelow 2002-03-26