Inventor
SCHAUPP JOHN F
US20 patents
⚠️ This page may combine multiple inventors who share the name “SCHAUPP JOHN F”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.
Q E D ENV SYSTEMS INC
9 patentsUS11448238B2Sep 20, 2022
Pneumatic landfill pump cycle counter
Q E D ENV SYSTEMS INC2 citations68
US11261883B2Mar 1, 2022
Self-cleaning pneumatic fluid pump having poppet valve with propeller-like cleaning structure
Q E D ENV SYSTEMS INC3 citations64
US11692433B2Jul 4, 2023
Fluid level monitoring system and method incorporating pressure sensor system having inflatable/collapsible bag
Q E D ENV SYSTEMS INC1 citations62
US11408274B2Aug 9, 2022
Fluid level monitoring system and method incorporating pressure sensor system having inflatable/collapsible bag
Q E D ENV SYSTEMS INC0 citations62
US11603866B2Mar 14, 2023
Landfill well pump
Q E D ENV SYSTEMS INC1 citations60
US11560786B2Jan 24, 2023
Liquid level sensor system
Q E D ENV SYSTEMS INC1 citations56
US12097542B2Sep 24, 2024
Fluid pump having self-cleaning structure
Q E D ENV SYSTEMS INC1 citations54
US11529658B2Dec 20, 2022
Fluid pump having self-cleaning air inlet structure
Q E D ENV SYSTEMS INC0 citations54
US12378975B2Aug 5, 2025
Pneumatic fluid pump with dual rotational swirling cleaning action
Q E D ENV SYSTEMS INC0 citations41
RANSBURG CORP
5 patentsUS5332159AJul 26, 1994
Spray gun with dual mode trigger
RANSBURG CORP71 citations96
USD396730SAug 4, 1998
Air hose fitting
RANSBURG CORP52 citations95
USRE35769EApr 14, 1998
Spray gun having trigger overtravel protection and maximum flow adjustment knob warning
RANSBURG CORP68 citations95
US5289974AMar 1, 1994
Spray gun having trigger overtravel protection and maximum flow adjustment knob warning
RANSBURG CORP78 citations95
US5364033ANov 15, 1994
Seal for spray gun
RANSBURG CORP9 citations73
ILLINOIS TOOL WORKS
5 patentsUS7128277B2Oct 31, 2006
Powder bell with secondary charging electrode
ILLINOIS TOOL WORKS37 citations92
US7168678B2Jan 30, 2007
Needle valve construction
ILLINOIS TOOL WORKS5 citations58
US8371517B2Feb 12, 2013
Powder gun deflector
ILLINOIS TOOL WORKS0 citations52
US7918409B2Apr 5, 2011
Multiple charging electrode
ILLINOIS TOOL WORKS0 citations48
US8888018B2Nov 18, 2014
Powder gun deflector
ILLINOIS TOOL WORKS1 citations42