Inventor
SONTAG STEPHEN K
US7 patents
⚠️ This page may combine multiple inventors who share the name “SONTAG STEPHEN K”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.
DONALDSON CO INC
6 patentsUS11207623B2Dec 28, 2021
Hydrocarbon fluid-water separation
DONALDSON CO INC4 citations82
US10315140B2Jun 11, 2019
Hydrocarbon fluid-water separation
DONALDSON CO INC9 citations82
US11806650B2Nov 7, 2023
Hydrocarbon fluid-water separation
DONALDSON CO INC2 citations71
US12515153B2Jan 6, 2026
Hydrocarbon fluid-water separation
DONALDSON CO INC0 citations60
US12558639B2Feb 24, 2026
Filter element configurations
DONALDSON CO INC0 citations59
US12017161B2Jun 25, 2024
Filter media configurations
DONALDSON CO INC1 citations59