HL

Herbert E. Lindtveit

SH Sid Harvey: 6 patents #1 of 1Top 100%
📍 West Hempstead, NY: #11 of 92 inventorsTop 15%
🗺 New York: #20,336 of 115,490 inventorsTop 20%
Overall (All Time): #756,982 of 4,157,543Top 20%
7
Patents All Time

Issued Patents All Time

Showing 1–7 of 7 patents

Patent #TitleCo-InventorsDate
D511558 Oil filter head 2005-11-15
4952311 Fuel oil filter element 1990-08-28
4416592 Liquid flow control apparatus 1983-11-22
4392796 Valve controlled reversible pump with anticavitation means 1983-07-12
4381019 Pressure responsive valve 1983-04-26
4276871 Flue damper and draft regulator 1981-07-07
4247267 Valve controlled reversible pump 1981-01-27