Inventor
KNOEPPEL RAY O
US13 patents
⚠️ This page may combine multiple inventors who share the name “KNOEPPEL RAY O”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.
AOS HOLDING CO
10 patentsUS7209651B1Apr 24, 2007
Fluid-heating apparatus, circuit for heating a fluid, and method of operating the same
AOS HOLDING CO51 citations95
US7032543B1Apr 25, 2006
Water heater with pressurized combustion
AOS HOLDING CO53 citations95
US6202935B1Mar 20, 2001
Combined potable water heater and hydronic heating system
AOS HOLDING CO26 citations89
US7706670B2Apr 27, 2010
Fluid-heating apparatus, circuit for heating a fluid, and method of operating the same
AOS HOLDING CO11 citations83
US7513221B2Apr 7, 2009
Water heater with pressurized combustion
AOS HOLDING CO13 citations83
US6532906B1Mar 18, 2003
Inlet heat recovery module for water heater
AOS HOLDING CO18 citations83
US7256372B2Aug 14, 2007
Fluid-heating apparatus, circuit for heating a fluid, and method of operating the same
AOS HOLDING CO13 citations79
US6262401B1Jul 17, 2001
Gold-plated water heater element and method of making same
AOS HOLDING CO6 citations73
US8023807B2Sep 20, 2011
Resistor anode assembly
AOS HOLDING CO3 citations60
US7410672B2Aug 12, 2008
Water-resistant porcelain enamel coatings and method of manufacturing same
AOS HOLDING CO3 citations54