Inventor · disambiguated record
Helmut Foell
Also filed as: FOELL HELMUT
13 granted patents·211 citations·filing 1983–2016
92Inventor score
Top patents by PatentIndex Score
13 records- 0188US4874484AEtching method for generating apertured openings or trenches in layers or substrates composed of n-doped siliconSIEMENS AG·Filed 1988·Granted Oct 17, 1989·90 cites·9 claims
- 0278US4563976ADevice for manufacturing large-surface, tape-shaped silicon bodies for solar cellsSIEMENS AG·Filed 1983·Granted Jan 14, 1986·31 cites·4 claims
- 0377US9246159B2Electrode for lithium ion batteriesBAHR JOERG·Filed 2010·Granted Jan 26, 2016·5 cites·4 claims
- 0464US4481235AApparatus and method for manufacturing tape-shaped silicon bodies for solar cellsSIEMENS AG·Filed 1983·Granted Nov 6, 1984·15 cites·5 claims
- 0563US5128514ABlack radiator for use as an emitter in calibratable gas sensorsSIEMENS AG·Filed 1988·Granted Jul 7, 1992·18 cites·6 claims
- 0659US4841239AMethod and measuring instrument for identifying the diffusion length of the minority charge carriers for non-destructive detection of flaws and impurities in semiconductor crystal bodiesSIEMENS AG·Filed 1988·Granted Jun 20, 1989·17 cites·12 claims
- 0758US8580102B2Method for the fast macropore etching in n-type siliconOSSEI-WUSU EMMANUEL·Filed 2009·Granted Nov 12, 2013·3 cites·9 claims
- 0856US9716276B2Method for manufacturing an electrode for lithium ion batteriesSAMSUNG ELECTRONICS CO LTD·Filed 2016·Granted Jul 25, 2017·0 cites·4 claims
- 0948US5209833AMethod and apparatus for large-area electrical contacting of a semiconductor crystal body with the assistance of electrolytesSIEMENS AG·Filed 1990·Granted May 11, 1993·13 cites·10 claims
- 1046US4505221ADevice for asymmetrically coating a tape-shaped carrier body with silicon for further processing into solar cellsSIEMENS AG·Filed 1983·Granted Mar 19, 1985·6 cites·6 claims
- 1133US5130643AMethod for determining the recombination rate of minority carriers at boundary surfaces between semiconductors and other substancesSIEMENS AG·Filed 1990·Granted Jul 14, 1992·5 cites·6 claims
- 1233US5010294AMethod for topically-resolved determination of the diffusion length of minority charge carriers in a semiconductor crystal body with the assistance of an electrolytic cellSIEMENS AG·Filed 1990·Granted Apr 23, 1991·5 cites·4 claims
- 1333US4557793AMethod and apparatus for drawing crystalline bodies from a meltSIEMENS AG·Filed 1984·Granted Dec 10, 1985·3 cites·8 claims
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →