Inventor · disambiguated record
Hartwig Schaper
Also filed as: SCHAPER HARTWIG
8 granted patents·230 citations·filing 1981–2002
89Inventor score
Top patents by PatentIndex Score
8 records- 0193US7089765B2Method of making a jacketed preform for optical fibers using OVDFURUKAWA ELECTRIC NORTH AM INC·Filed 2002·Granted Aug 15, 2006·52 cites·43 claims
- 0293US6047564AMethod of producing quartz glass bodiesHERAEUS QUARZGLAS·Filed 1997·Granted Apr 11, 2000·69 cites·13 claims
- 0370US4782265AElectrochemical luminescent cellPHILIPS CORP·Filed 1985·Granted Nov 1, 1988·32 cites·3 claims
- 0467US4431919ADetection apparatus, particularly for use in liquid chromatographyPHILIPS CORP·Filed 1981·Granted Feb 14, 1984·27 cites·5 claims
- 0562US6321573B1Process and apparatus for manufacturing a porous SiO2 preformHERAEUS QUARZGLAS·Filed 1999·Granted Nov 27, 2001·19 cites·20 claims
- 0661US5643347AProcess for manufacture of silica granulesHERAEUS QUARZGLAS·Filed 1995·Granted Jul 1, 1997·24 cites·8 claims
- 0739US5429653AMethod of partially introverting a multiple layer tube to form an optical fiber preformHERAEUS QUARZGLAS·Filed 1993·Granted Jul 4, 1995·6 cites·8 claims
- 0825US4422006AElectrochemical luminescent cellPHILIPS CORP·Filed 1981·Granted Dec 20, 1983·1 cites·6 claims
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →