Inventor

HOFNER CHRISTIAN

DE5 patents

⚠️ This page may combine multiple inventors who share the name “HOFNER CHRISTIAN”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.

KAERCHER GMBH & CO KG ALFRED

3 patents

US10390674B2Aug 27, 2019

Method for cleaning a floor surface and floor cleaning device

KAERCHER GMBH & CO KG ALFRED3 citations67

US10362918B2Jul 30, 2019

Self-propelled and self-steering floor cleaner and method for cleaning a floor surface

KAERCHER GMBH & CO KG ALFRED2 citations66

US10338595B2Jul 2, 2019

Method for treating a floor surface and floor treating apparatus

KAERCHER GMBH & CO KG ALFRED0 citations30

ALFRED KARCHER SE & CO KG

1 patent

US11272821B2Mar 15, 2022

Floor treatment system and method for operating such a system

ALFRED KARCHER SE & CO KG0 citations55

DUENNE MARKUS

1 patent

US8823487B2Sep 2, 2014

Cleaning apparatus and method for controlling access to a cleaning apparatus

DUENNE MARKUS1 citations41