Duos Engineering (USA), Inc.
5Patents
0Active
5Granted
25Portfolio score
Filing activity: Jul 26, 1996 → Feb 7, 2000
Most-cited patents
| Patent | Title | Area | Cited by | Status |
|---|---|---|---|---|
| US5890663A | Process for recovering perrous values from municipal solid waste | Emerging Cross-Sectional Technologies | 12 | Expired |
| US5992776A | Process for processing ash | Performing Operations; Transporting | 9 | Expired |
| US6589654B1 | Construction material and method | Emerging Cross-Sectional Technologies | 8 | Expired |
| US5906321A | Non-ferrous metals cleaning system | Performing Operations; Transporting | 3 | Expired |
| US6308435A | Process and facility for processing municipal waste combustion ash | Mechanical Engineering; Lighting; Heating | 0 | Expired |
Source: USPTO / EPO open patent data. Counts and citation impact are objective bibliographic measures.