Franz Kummer
14Patents
10h-index
18Co-inventors
69Inventor score
Filing activity: Mar 20, 1975 → Dec 7, 2005
Most-cited inventions
| Patent | Title | Area | Cited by | Status |
|---|---|---|---|---|
| US6504179B1 | Led-based white-emitting illumination unit | Emerging Cross-Sectional Technologies | 139 | Expired |
| US6669866B1 | Luminous substance for a light source and light source associates therewith | Electricity | 98 | Expired |
| US6657379B2 | Illumination unit having at least one LED as light source | Electricity | 47 | Expired |
| US5985175A | Boron oxide coated phosphor and method of making same | Emerging Cross-Sectional Technologies | 28 | Expired |
| US6998771B2 | Arrangement of luminescent materials, wavelength-converting casting compound and light source | Electricity | 19 | Expired |
| US7132786B1 | Luminescent array, wavelength-converting sealing material and light source | Electricity | 19 | Expired |
| US6391273B1 | Process and apparatus for producing oxidic nanocrystals | Chemistry; Metallurgy | 18 | Expired |
| US4065851A | Method of making metallic support carrier for semiconductor elements | Emerging Cross-Sectional Technologies | 15 | Expired |
| US4027326A | Metallic support carrier for semiconductor elements | Electricity | 14 | Expired |
| US7063807B2 | Phosphor for light sources and associated light source | Electricity | 14 | Expired |
| US7115217B2 | Phosphor for light sources and associated light source | Electricity | 4 | Expired |
| US6702957B2 | Process and apparatus for producing oxidic nanocrystals | Chemistry; Metallurgy | 4 | Expired |
| US7261837B2 | Arrangement of luminescent materials, wavelength-converting casting compound and light source | Electricity | 2 | Expired |
| US7285252B2 | Apparatus for producing oxidic nanocrystals | Chemistry; Metallurgy | 0 | Expired |
Source: USPTO / EPO open patent data. Inventor disambiguation is heuristic; counts are objective bibliographic measures.