Inventor · disambiguated record
Frederic F. Ahlgren
Also filed as: AHLGREN FREDERIC · AHLGREN FREDERIC F · AHLGREN FREDERIC FRANCIS
26 granted patents·3 pending applications·564 citations·filing 1976–2021
97Inventor score
Files withGEN ELECTRIC22GIDDINGS ROBERT A1LAMOURI ABBAS1MOMENTIVE PERFORMANCE MAT INC1MOMENTIVE PERFORMANCE MAT QUARTZ INC1
Top patents by PatentIndex Score
29 records- 0195US6739155B1Quartz making an elongated fused quartz article using a furnace with metal-lined wallsGEN ELECTRIC·Filed 2000·Granted May 25, 2004·38 cites·9 claims
- 0293US6422861B1Quartz fusion furnace and method for forming quartz articlesGEN ELECTRIC·Filed 2000·Granted Jul 23, 2002·42 cites·18 claims
- 0388US5587626APatterned optical interference coatings for only a portion of a high intensity lamp envelopeGEN ELECTRIC·Filed 1995·Granted Dec 24, 1996·52 cites·24 claims
- 0487US6632086B1Quartz fusion crucibleFiled 2000·Granted Oct 14, 2003·37 cites·14 claims
- 0584US6799440B2Optical fiber deposition tube fused in deuterium atmosphere for attenuation improvementGEN ELECTRIC·Filed 2002·Granted Oct 5, 2004·12 cites·17 claims
- 0684US6502422B1Method for quartz crucible fabricationGEN ELECTRIC·Filed 2000·Granted Jan 7, 2003·13 cites·19 claims
- 0779US5676579APatterned optical interference coatings for electric lampsGEN ELECTRIC·Filed 1996·Granted Oct 14, 1997·29 cites·5 claims
- 0878US4810932ATungsten-halogen incandescent and metal vapor discharge lamps and processes of making suchGEN ELECTRIC·Filed 1985·Granted Mar 7, 1989·37 cites·32 claims
- 0977US5420769AHigh temperature lamp assembly with improved thermal management propertiesGEN ELECTRIC·Filed 1993·Granted May 30, 1995·46 cites·15 claims
- 1076US5675677ALamp-to-light guide coupling arrangement for an electrodeless high intensity discharge lampGEN ELECTRIC·Filed 1995·Granted Oct 7, 1997·54 cites·16 claims
- 1172US7363776B2Method for forming fused quartz using deuteriumMOMENTIVE PERFORMANCE MAT INC·Filed 2004·Granted Apr 29, 2008·5 cites·23 claims
- 1271US4891555AMetal vapor discharge lampsGEN ELECTRIC·Filed 1988·Granted Jan 2, 1990·27 cites·6 claims
- 1370US4020693AAcoustic transducer for nuclear reactor monitoringUS ENERGY·Filed 1976·Granted May 3, 1977·23 cites·8 claims
- 1466US5705883AReduced length compact fluorescent lamp and method of forming sameGEN ELECTRIC·Filed 1995·Granted Jan 6, 1998·39 cites·19 claims
- 1564US12384712B2Systems and method for producing hollow quartz cylindersMOMENTIVE PERFORMANCE MAT QUARTZ INC·Filed 2021·Granted Aug 12, 2025·0 cites·19 claims
- 1663US5045748ATungsten-halogen incandescent and metal vapor discharge lamps and processes of making suchGEN ELECTRIC·Filed 1989·Granted Sep 3, 1991·20 cites·3 claims
- 1761US4525651ACapacitively ballasted low voltage incandescent lampGEN ELECTRIC·Filed 1984·Granted Jun 25, 1985·18 cites·7 claims
- 1859US6875515B2Fused quartz article having controlled devitrificationGEN ELECTRIC·Filed 2002·Granted Apr 5, 2005·4 cites·25 claims
- 1956US6504233B1Semiconductor processing componentGEN ELECTRIC·Filed 1999·Granted Jan 7, 2003·18 cites·20 claims
- 2052US7846405B2Method and apparatus for measuring and controlling selective catalytic reduction (SCR) emission control systemsGEN ELECTRIC·Filed 2004·Granted Dec 7, 2010·7 cites·23 claims
- 2151US6709608B2Semiconductor processing componentGEN ELECTRIC·Filed 2002·Granted Mar 23, 2004·3 cites·8 claims
- 2250US5404069AFilament support for incandescent lampsGEN ELECTRIC·Filed 1994·Granted Apr 4, 1995·15 cites·25 claims
- 2350US5087218AIncandesent lamps and processes for making sameGEN ELECTRIC·Filed 1991·Granted Feb 11, 1992·14 cites·9 claims
- 2448US2005199012A9Quartz fusion furnace and method for forming quartz articlesGIDDINGS ROBERT A·Filed 2004·Application pending·0 cites
- 2546US2005081564A1Fused quartz article having controlled devitrificationFiled 2004·Application pending·0 cites
- 2638US8766537B2Infrared halogen lamp with improved efficiencyLAMOURI ABBAS·Filed 2010·Granted Jul 1, 2014·0 cites·11 claims
- 2738US2003226376A1Fabrication of heavy walled silica tubingGEN ELECTRIC·Filed 2002·Application pending·0 cites
- 2837US5900381AOpaque silica compositionGEN ELECTRIC·Filed 1997·Granted May 4, 1999·5 cites·1 claims
- 2936US4839559ARadiant energy incandescent lampGEN ELECTRIC·Filed 1988·Granted Jun 13, 1989·6 cites·2 claims
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →