Inventor · disambiguated record
Karl-Friedrich Pfeiffer
Also filed as: PFEIFFER KARL · PFEIFFER KARL-FRIEDRICH
11 granted patents·6 pending applications·38 citations·filing 1993–2020
85Inventor score
Files withCONTINENTAL AUTOMOTIVE GMBH7VITESCO TECHNOLOGIES GERMANY GMBH3BASF AG2JÄGER WIGHARD2FISCHER WALTER1
Top patents by PatentIndex Score
17 records- 0183US10101193B2Apparatus and method for determining a level of a fluid surface in a fluid containerCONTINENTAL AUTOMOTIVE GMBH·Filed 2015·Granted Oct 16, 2018·6 cites·15 claims
- 0266US9829369B2Ultrasound level transmitterKUEHNEL FRANK·Filed 2012·Granted Nov 28, 2017·4 cites·9 claims
- 0362US5393644AProduction of crosslinked polymer layers having nonlinear optical properties and their useBASF AG·Filed 1993·Granted Feb 28, 1995·15 cites·10 claims
- 0459US12359959B2Sensor apparatus for capturing a filling level and/or a quality of a fluid, and method for producing said apparatusVITESCO TECHNOLOGIES GERMANY GMBH·Filed 2020·Granted Jul 15, 2025·0 cites·15 claims
- 0559US9417113B2Fill level sensor for detecting the fill level of a liquid in a containerJÄGER WIGHARD·Filed 2012·Granted Aug 16, 2016·2 cites·12 claims
- 0651US9719833B2Referential ultrasonic transceiver for acoustic measurement of a fluid levelJÄGER WIGHARD·Filed 2012·Granted Aug 1, 2017·1 cites·9 claims
- 0747US10928241B2Ultrasound sensorCONTINENTAL AUTOMOTIVE GMBH·Filed 2017·Granted Feb 23, 2021·0 cites·9 claims
- 0847US2021247340A1Sensor Device for Determining the Electrical Conductivity of a Fluid and the Speed of Sound in the FluidVITESCO TECHNOLOGIES GERMANY GMBH·Filed 2019·Application pending·0 cites
- 0944US8947981B2Attenuating mass for an ultrasonic sensor, use of epoxy resinFISCHER WALTER·Filed 2011·Granted Feb 3, 2015·0 cites·12 claims
- 1044US2021116289A1Arrangement and Method for Determining a Minimum Filling Level of a Fluid in a Fluid ContainerVITESCO TECHNOLOGIES GERMANY GMBH·Filed 2020·Application pending·0 cites
- 1141US2015168204A1Method and device for determining a height of a fluid level in a fluid containerCONTINENTAL AUTOMOTIVE GMBH·Filed 2013·Application pending·0 cites
- 1240US10393567B2Container system for a fluid and method for producing sameCONTINENTAL AUTOMOTIVE GMBH·Filed 2017·Granted Aug 27, 2019·0 cites·21 claims
- 1340US5393645AProduction of structured polymer layers having nonlinear optical propertiesBASF AG·Filed 1993·Granted Feb 28, 1995·10 cites·8 claims
- 1439US2018372533A1Ultrasonic Sensor For Determining A Liquid LevelCONTINENTAL AUTOMOTIVE GMBH·Filed 2016·Application pending·0 cites
- 1533US2017160126A1Device For Determining a Speed of a Sound Signal in a FluidCONTINENTAL AUTOMOTIVE GMBH·Filed 2015·Application pending·0 cites
- 1632US10444057B2Device for determining a level of the surface of a fluid in a fluid containerCONTINENTAL AUTOMOTIVE GMBH·Filed 2015·Granted Oct 15, 2019·0 cites·16 claims
- 1729US2004079730A1Plastic male mold for fabricating microstructures and nanostructures using imprint lithographyFiled 2002·Application pending·0 cites
Join the waitlist — get patent alerts
Get an alert when Karl-Friedrich Pfeiffer 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 →