Inventor · disambiguated record
Charles Maerfeld
Also filed as: MAERFELD CHARLES · TOURNOIS PIERRE
17 granted patents·1 pending application·264 citations·filing 1974–2003
94Inventor score
Top patents by PatentIndex Score
18 records- 0185US4306456AElastic wave accelerometerTHOMSON CSF·Filed 1980·Granted Dec 22, 1981·51 cites·22 claims
- 0275US4477784ASurface wave dispersive acoustic delay lineTHOMSON CSF·Filed 1982·Granted Oct 16, 1984·22 cites·2 claims
- 0368US4870972AMultiple-frequency acoustic transducer, especially for medical imagingTHOMSON CSF·Filed 1988·Granted Oct 3, 1989·27 cites·7 claims
- 0467US5109860AProbe with curved bar for an echographGEN ELECTRIC CGR·Filed 1987·Granted May 5, 1992·23 cites·10 claims
- 0567US5022731ADevice for optical frequency translation and a modulator in which said device is employedTHOMSON CSF·Filed 1989·Granted Jun 11, 1991·26 cites·9 claims
- 0667US4314098AReversible electroacoustic transducer device having a constant directivity characteristic over a wide frequency bandTHOMSON CSF·Filed 1979·Granted Feb 2, 1982·28 cites·12 claims
- 0762US3947783AAcoustic surface wave device comprising arrays of parallel metallic stripsTHOMSON CSF·Filed 1974·Granted Mar 30, 1976·12 cites·5 claims
- 0854US4694700AUltrasonic sensor for electronic sectorial scanning and echograph incorporating such a sensorCGR ULTRASONIC·Filed 1985·Granted Sep 22, 1987·16 cites·17 claims
- 0954US4134623ASystem for processing an electric signal using elastic surface wavesTHOMSON CSF·Filed 1977·Granted Jan 16, 1979·6 cites·1 claims
- 1054US4128615AMethod for processing an electric signal using elastic surface wavesTHOMSON CSF·Filed 1977·Granted Dec 5, 1978·6 cites·7 claims
- 1152US4794929AEchography probe and echograph fitted, with a probe of this typeCGR ULTRASONIC·Filed 1986·Granted Jan 3, 1989·16 cites·16 claims
- 1249US4388599APiezoelectric elastic-wave convolver deviceTHOMSON CSF·Filed 1981·Granted Jun 14, 1983·10 cites·40 claims
- 1349US4122495AMethod and a device for an electro-acoustic reading of an optical device imageTHOMSON CSF·Filed 1977·Granted Oct 24, 1978·8 cites·9 claims
- 1442US4159539AElastic waves device for memorizing informationTHOMSON CSF·Filed 1978·Granted Jun 26, 1979·3 cites·24 claims
- 1536US4547870AVelocity hydrophoneTHOMSON CSF·Filed 1984·Granted Oct 15, 1985·7 cites·3 claims
- 1634US4281350AAcoustoelectric device for reading or processing a two-dimensional optical imageTHOMSON CSF·Filed 1979·Granted Jul 28, 1981·3 cites·10 claims
- 1727US4323985ATwo dimensional acousto-electrical device for storing and processing informationTHOMSON CSF·Filed 1980·Granted Apr 6, 1982·0 cites·19 claims
- 1827US2005119574A1Ultrasonic imaging software and hardware packTHALES UL TRASONICS SAS·Filed 2003·Application pending·0 cites
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →