HH

Howard Heil

📍 Downers Grove, IL: #201 of 824 inventorsTop 25%
🗺 Illinois: #21,447 of 84,256 inventorsTop 30%
Overall (All Time): #1,229,146 of 4,157,543Top 30%
4
Patents All Time

Issued Patents All Time

Showing 1–4 of 4 patents

Patent #TitleCo-InventorsDate
8555911 Method and apparatus for water surge protection 2013-10-15
6561214 Hydrant with improved drain mechanism 2003-05-13
6435209 Method and apparatus for preventing ice formation in water towers 2002-08-20
5218987 Method and apparatus for water surge protection and protection of fire hydrant systems 1993-06-15