Durferrit GmbH
🏢 View company profile →5Patents
4Active
5Granted
40Portfolio score
Filing activity: Aug 7, 2001 → Oct 31, 2008 · 4 expiring within 5 years
Most-cited patents
| Patent | Title | Area | Cited by | Status |
|---|---|---|---|---|
| US7909943B2 | Method for hardening stainless steel and molten salt bath for realizing said process | Chemistry; Metallurgy | 3 | Active |
| US6964712B2 | Hardening protection compositions for partial carburization of metallic components | Chemistry; Metallurgy | 1 | Expired |
| US8083866B2 | Method for hardening the surfaces of work pieces made of stainless steel, and a molten salt bath for realizing the method | Chemistry; Metallurgy | 1 | Active |
| US8747573B2 | Method for producing corrosion-resistant surfaces of nitrated or nitrocarburated steel components | Mechanical Engineering; Lighting; Heating | 0 | Active |
| US8092214B2 | Method for continuous mixing and melting inorganic salts and furnace installation for realizing the method | Emerging Cross-Sectional Technologies | 0 | Active |
Source: USPTO / EPO open patent data. Counts and citation impact are objective bibliographic measures.