Waltraud Werdecker
25Patents
10h-index
39Co-inventors
75Inventor score
Filing activity: May 15, 1980 → Mar 7, 2013
Most-cited inventions
| Patent | Title | Area | Cited by | Status |
|---|---|---|---|---|
| US4591537A | Combination of AlN-Y.sub.2 O.sub.3 heat conductive ceramic substrate and electronic component | Emerging Cross-Sectional Technologies | 71 | Expired |
| US4519966A | Low-contamination AlN crucible for monocrystal pulling and method | Emerging Cross-Sectional Technologies | 49 | Expired |
| US6360563B1 | Process for the manufacture of quartz glass granulate | Chemistry; Metallurgy | 32 | Expired |
| US6380110B1 | Process for making opaque quartz, for carrying out the process suitable SiO2 granulate, and component of opaque quartz glass | Chemistry; Metallurgy | 23 | Expired |
| US6660671B2 | Method of producing a composite material having a high SiO2 content, composite material obtained according to the method, and permanent mold made thereof | Emerging Cross-Sectional Technologies | 16 | Expired |
| US4818626A | Method for producing sintered metalized aluminum nitride ceramic bodies | Emerging Cross-Sectional Technologies | 16 | Expired |
| US4627815A | Ceramic temperature stabilization body, and method of making same | Chemistry; Metallurgy | 15 | Expired |
| US6672107B2 | Quartz glass crucible and process for the production thereof | Emerging Cross-Sectional Technologies | 13 | Expired |
| US7637126B2 | Method for the production of laser-active quartz glass and use thereof | Chemistry; Metallurgy | 12 | Active |
| US5643347A | Process for manufacture of silica granules | Chemistry; Metallurgy | 12 | Expired |
| US4454977A | Process of producing corrosion-resistant tubular connection pieces | Performing Operations; Transporting | 10 | Expired |
| US6684664B2 | Process for manufacture of a component made of opaque synthetic quartz glass | Emerging Cross-Sectional Technologies | 10 | Expired |
| US5610116A | Catalyst carrier and method for producing same | Chemistry; Metallurgy | 10 | Expired |
| US4303635A | Zinc sulfide body for optical purposes | Physics | 5 | Expired |
| US4414014A | Method of producing a bubble-free vitreous material | Chemistry; Metallurgy | 5 | Expired |
| US4564433A | Bipolar electrode | Chemistry; Metallurgy | 5 | Expired |
| US8158542B2 | SiO2 slurry for the production of quartz glass as well as the application of the slurry | Chemistry; Metallurgy | 4 | Active |
| US8920878B2 | Method for producing a coated quartz glass component | Chemistry; Metallurgy | 4 | Active |
| US6381987B1 | Process for making opaque quartz glass and opaque component made according to the process | Chemistry; Metallurgy | 4 | Expired |
| US8209998B2 | SiO2 slurry for the production of quartz glass as well as the application of the slurry | Chemistry; Metallurgy | 4 | Active |
| US7947335B2 | Quartz glass component with reflector layer and method for producing the same | Emerging Cross-Sectional Technologies | 2 | Active |
| US7749930B2 | Holder made from quartz glass for the processing of semiconductor wafers and method for production of the holder | Emerging Cross-Sectional Technologies | 2 | Active |
| US7937968B2 | Method for bonding components made of material with a high silicic acid content | Chemistry; Metallurgy | 1 | Active |
| US9533890B2 | Process for producing and processing a paste-like SiO2 composition, and the use thereof | Chemistry; Metallurgy | 1 | Active |
| US8408027B2 | Method for the production of a composite body from a basic body of opaque quartz glass and a tight sealing layer | Chemistry; Metallurgy | 0 | Active |
Source: USPTO / EPO open patent data. Inventor disambiguation is heuristic; counts are objective bibliographic measures.