Douglas A. Hofmann
20Patents
5h-index
8Co-inventors
58Inventor score
Filing activity: Feb 18, 1997 → Jul 14, 2015
Most-cited inventions
| Patent | Title | Area | Cited by | Status |
|---|---|---|---|---|
| US7767606B2 | Low viscosity E-glass composition enabling the use of platinum and rhodium free bushings | Emerging Cross-Sectional Technologies | 59 | Active |
| US5789329A | Boron-free glass fibers | Chemistry; Metallurgy | 58 | Expired |
| US7799713B2 | Composition for high performance glass, high performance glass fibers and articles therefrom | Chemistry; Metallurgy | 21 | Active |
| US8252707B2 | Composition for high performance glass fibers and fibers formed therewith | Chemistry; Metallurgy | 8 | Active |
| US8341978B2 | Method of manufacturing high performance glass fibers in a refractory lined melter and fiber formed thereby | Chemistry; Metallurgy | 5 | Active |
| US9156729B2 | High refractive index glass composition | Chemistry; Metallurgy | 5 | Active |
| US8338319B2 | Composition for high performance glass fibers and fibers formed therewith | Chemistry; Metallurgy | 5 | Active |
| US9029279B2 | Glass composition for producing high strength and high modulus fibers | Chemistry; Metallurgy | 4 | Active |
| US9187361B2 | Method of manufacturing S-glass fibers in a direct melt operation and products formed there from | Emerging Cross-Sectional Technologies | 3 | Active |
| US8987154B2 | Modulus, lithium free glass | Chemistry; Metallurgy | 3 | Active |
| US8563450B2 | Composition for high performance glass high performance glass fibers and articles therefrom | Chemistry; Metallurgy | 3 | Active |
| US8586491B2 | Composition for high performance glass, high performance glass fibers and articles therefrom | Chemistry; Metallurgy | 2 | Active |
| US9206068B2 | Method of manufacturing S-glass fibers in a direct melt operation and products formed therefrom | Emerging Cross-Sectional Technologies | 2 | Active |
| US9546107B2 | Glass composition for the manufacture of fibers and process | Chemistry; Metallurgy | 2 | Active |
| US9656903B2 | Method of manufacturing high strength glass fibers in a direct melt operation and products formed there from | Emerging Cross-Sectional Technologies | 1 | Active |
| US9878941B2 | Glass composition for producing high strength and high modulus fibers | Chemistry; Metallurgy | 1 | Active |
| US9352999B2 | Glass composition for producing high strength and high modulus fibers | Emerging Cross-Sectional Technologies | 0 | Active |
| US9695083B2 | Method of manufacturing S-glass fibers in a direct melt operation and products formed therefrom | Emerging Cross-Sectional Technologies | 0 | Active |
| US9586856B2 | High strength glass fibers with controlled refractive index, composition for making such fibers and composite materials formed therefrom | Chemistry; Metallurgy | 0 | Active |
| US9346944B2 | Glass composition for producing high strength and high modulus fibers | Chemistry; Metallurgy | 0 | Active |
Source: USPTO / EPO open patent data. Inventor disambiguation is heuristic; counts are objective bibliographic measures.