Inventor
Frederic F. Ahlgren
Inventor
Highland Heights, OH, US
Overview
Patents· 25 as inventor
Public. Assignee & technology derived from the patent record. Each patent links to its LexDana page.
C03Bprimary
C03BManufacture, shaping, or supplementary processes14%
H01JElectric discharge tubes or discharge lamps14%
H01KElectric incandescent lamps14%
Y02BClimate change mitigation technologies related to buildings, e.g. housing, house appliances or related end-user applications10%
C03CChemical composition of glasses, glazes or vitreous enamels4%
C30BSingle-crystal growth4%
H10PGeneric processes or apparatus for the manufacture or treatment of devices covered by class h104%
H10WGeneric packages, interconnections, connectors or other constructional details of devices covered by class h104%
Y02PClimate change mitigation technologies in the production or processing of goods4%
Y10STechnical subjects covered by former uspc cross-reference art collections [xracs] and digests4%
PatentTitleYear
8,766,537'Infrared halogen lamp with improved efficiency'20147,846,405'Method and apparatus for measuring and controlling selective catalytic reduction (SCR) emission control systems'20107,363,776'Method for forming fused quartz using deuterium'20086,875,515'Fused quartz article having controlled devitrification'20056,799,440'Optical fiber deposition tube fused in deuterium atmosphere for attenuation improvement'20046,739,155'Quartz making an elongated fused quartz article using a furnace with metal-lined walls'20046,709,608'Semiconductor processing component'20046,632,086'Quartz fusion crucible'20036,504,233'Semiconductor processing component'20036,502,422'Method for quartz crucible fabrication'20036,422,861'Quartz fusion furnace and method for forming quartz articles'20025,900,381'Opaque silica composition'19995,705,883'Reduced length compact fluorescent lamp and method of forming same'19985,676,579'Patterned optical interference coatings for electric lamps'19975,675,677'Lamp-to-light guide coupling arrangement for an electrodeless high intensity discharge lamp'19975,587,626'Patterned optical interference coatings for only a portion of a high intensity lamp envelope'19965,420,769'High temperature lamp assembly with improved thermal management properties'19955,404,069'Filament support for incandescent lamps'19955,087,218'Incandesent lamps and processes for making same'19925,045,748'Tungsten-halogen incandescent and metal vapor discharge lamps and processes of making such'19914,891,555'Metal vapor discharge lamps'19904,839,559'Radiant energy incandescent lamp'19894,810,932'Tungsten-halogen incandescent and metal vapor discharge lamps and processes of making such'19894,525,651'Capacitively ballasted low voltage incandescent lamp'19854,020,693'Acoustic transducer for nuclear reactor monitoring'1977Career & activity timeline
Assembled from patent assignee/location history and declaration credentials.
1985–2010Patents assigned to GEN ELECTRIC (21)· patent assignee history
1985–1992Based in Shaker Heights, OH, US· patent location history
1995–1998Based in Euclid, OH, US· patent location history
1999–2010Based in Highland Heights, OH, US· patent location history
2003Based in Richmond Heights, OH, US· patent location history
2008Patents assigned to MOMENTIVE PERFORMANCE MAT INC (1)· patent assignee history
2014Patents assigned to ADVANCED LIGHTING TECH INC (1)· patent assignee history
2014Patents assigned to AHLGREN FREDERIC (1)· patent assignee history
2014Patents assigned to LAMOURI ABBAS (1)· patent assignee history
2014Based in Highland Hts., OH, US· patent location history
Inventor activity
Assignee and location history derived from the patent record.
Assignees
| Assignee | Patents | Span |
|---|---|---|
| GEN ELECTRIC | 21 | 1985–2010 |
| ADVANCED LIGHTING TECH INC | 1 | 2014 |
| AHLGREN FREDERICself | 1 | 2014 |
| LAMOURI ABBAS | 1 | 2014 |
| MOMENTIVE PERFORMANCE MAT INC | 1 | 2008 |
Locations
| Location | Patents | Span |
|---|---|---|
| Highland Heights, OH, US | 9 | 1999–2010 |
| Euclid, OH, US | 6 | 1995–1998 |
| Shaker Heights, OH, US | 6 | 1985–1992 |
| Richmond Heights, OH, US | 2 | 2003 |
| Highland Hts., OH, US | 1 | 2014 |