Inventor · disambiguated record
Stefan Engel
Also filed as: ENGEL STEFAN
17 granted patents·7 pending applications·183 citations·filing 1996–2020
93Inventor score
Top patents by PatentIndex Score
24 records- 0192US7612125B2Ink and method of using the inkSTAEDTLER FA J S·Filed 2008·Granted Nov 3, 2009·36 cites·8 claims
- 0286US8735461B2Printing ink, in particular ink-jet ink, containing pearlescent pigments based on fine and thin substratesGRÜNER MICHAEL·Filed 2010·Granted May 27, 2014·6 cites·12 claims
- 0385US10727755B2Method for controlling a switch module based on thyristor switching elementsREINHAUSEN MASCHF SCHEUBECK·Filed 2017·Granted Jul 28, 2020·5 cites·10 claims
- 0483US8851649B2UV ink jet printing ink compositionENGEL STEFAN·Filed 2011·Granted Oct 7, 2014·9 cites·31 claims
- 0574US5935310AInk for changeable color applicationsSTAEDTLER FA J S·Filed 1998·Granted Aug 10, 1999·40 cites·17 claims
- 0671US8333832B2Pigment preparation and ink jet printing inkMAENNIG JOERG·Filed 2008·Granted Dec 18, 2012·8 cites·46 claims
- 0769US6610130B2Aqueous ink set and its useSTAEDTLER FA J S·Filed 2001·Granted Aug 26, 2003·8 cites·17 claims
- 0867US7122820B2Method for determining visibility, amount of precipitation and type of precipitationVAISALA IMPULSPHYSIK GMBH·Filed 2002·Granted Oct 17, 2006·11 cites·19 claims
- 0965US5888284AWater-based inks and ink sets and use thereofSTAEDTLER FA J S·Filed 1997·Granted Mar 30, 1999·23 cites·22 claims
- 1062US5917512ACleaning container and method for cleaning a printhead of an ink jet printerJ S STAEDLER GMBH & CO·Filed 1996·Granted Jun 29, 1999·23 cites·11 claims
- 1161US7286249B2Printer or other automatic printing system with additional control device and control device thereforSTAEDTLER FA J S·Filed 2003·Granted Oct 23, 2007·8 cites·17 claims
- 1257US8608843B2Pigment preparation and ink jet printing inkECKART GMBH·Filed 2012·Granted Dec 17, 2013·0 cites·49 claims
- 1357US2021115280A1Aqueous ink or lacquer composition for coating or printing a substrateMARABU GMBH & CO KG·Filed 2020·Application pending·0 cites
- 1457US2017158894A1Ink jet printer ink comprising effect pigments having high glossECKART GMBH·Filed 2017·Application pending·0 cites
- 1555US2022056296A1Conductive ink jet printing ink compositionECKART GMBH·Filed 2019·Application pending·0 cites
- 1649US2012135209A1Ink jet printer ink comprising effect pigments having high glossBECKER MICHAEL·Filed 2010·Application pending·0 cites
- 1748USD530740SInk cartridgeSTAEDTLER FA J S·Filed 2004·Granted Oct 24, 2006·6 cites·1 claims
- 1838US2014354390A1Tap changerENGEL STEFAN·Filed 2012·Application pending·0 cites
- 1937US9151360B2Metal connection plate of a chain link of an energy chainTsubaki Kabelschlepp GmbH·Filed 2013·Granted Oct 6, 2015·0 cites·16 claims
- 2034US10675182B2Hollow needle for an ophthalmic surgical instrumentGEUDER AG·Filed 2016·Granted Jun 9, 2020·0 cites·12 claims
- 2134US6884287B2Ink base for pigmented inks, inks manufactured therefrom and their useSTAEDTLER FA J S·Filed 2003·Granted Apr 26, 2005·0 cites·10 claims
- 2232US2006055749A1Ink reservoir for automatic recording, writing, and drawing devicesSCHUSTER RAINER·Filed 2005·Application pending·0 cites
- 2332US2005085562A1Ink and method of using the inkSTAEDTLER FA J S·Filed 2004·Application pending·0 cites
- 2431US9825532B2Current control for DC-DC convertersENGEL STEFAN·Filed 2013·Granted Nov 21, 2017·0 cites·16 claims
Join the waitlist — get patent alerts
Get an alert when Stefan Engel files or is granted a new patent.
We store only your email — no account needed. See our privacy policy.
Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →