Inventor · disambiguated record
Christian Stewen
Also filed as: STEWEN CHRISTIAN
7 granted patents·2 pending applications·123 citations·filing 2001–2020
86Inventor score
Files withKAERCHER GMBH & CO KG ALFRED4UNIV STUTTGART STRAHLWERKZEUGE3KAERCHER ALFRED SE & CO KG1STEWEN CHRISTIAN1
Top patents by PatentIndex Score
9 records- 0190US6577666B2Laser amplification systemUNIV STUTTGART STRAHLWERKZEUGE·Filed 2001·Granted Jun 10, 2003·46 cites·32 claims
- 0285US10258207B2Portable hard surface cleaning applianceKAERCHER GMBH & CO KG ALFRED·Filed 2016·Granted Apr 16, 2019·10 cites·22 claims
- 0385US6438152B2Laser amplification systemUNIV STUTTGART STRAHLWERKZEUGE·Filed 2001·Granted Aug 20, 2002·29 cites·30 claims
- 0482US6891874B2Laser amplifier systemUNIV STUTTGART STRAHLWERKZEUGE·Filed 2002·Granted May 10, 2005·22 cites·32 claims
- 0579US7867304B2Method for cleaning the filters of a vacuum cleaner and vacuum cleaner for carrying out said methodKAERCHER GMBH & CO KG ALFRED·Filed 2007·Granted Jan 11, 2011·10 cites·18 claims
- 0665US12256875B2Portable hard surface cleaning applianceKAERCHER ALFRED SE & CO KG·Filed 2020·Granted Mar 25, 2025·1 cites·29 claims
- 0765US8186005B2Vacuum cleaning deviceSTEWEN CHRISTIAN·Filed 2007·Granted May 29, 2012·5 cites·27 claims
- 0846US2009205159A1Vacuum cleanerKAERCHER GMBH & CO KG ALFRED·Filed 2009·Application pending·0 cites
- 0943US2007039128A1Vacuum-cleaner nozzleKAERCHER GMBH & CO KG ALFRED·Filed 2006·Application pending·0 cites
Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →