D. B. Riley, Inc.
7Patents
0Active
7Granted
27Portfolio score
Filing activity: Feb 22, 1994 → Jul 20, 1998
Most-cited patents
| Patent | Title | Area | Cited by | Status |
|---|---|---|---|---|
| US5685240A | Variable orifice plate for coal pipes | Mechanical Engineering; Lighting; Heating | 24 | Expired |
| US6058855A | Low emission U-fired boiler combustion system | Mechanical Engineering; Lighting; Heating | 24 | Expired |
| US5593131A | Variable orifice plate for coal pipes | Mechanical Engineering; Lighting; Heating | 21 | Expired |
| US5460206A | Modular duct liner panel | Mechanical Engineering; Lighting; Heating | 13 | Expired |
| US5623884A | Tilting coal nozzle burner apparatus | Mechanical Engineering; Lighting; Heating | 10 | Expired |
| US5722354A | Heat recovery steam generating apparatus | Mechanical Engineering; Lighting; Heating | 10 | Expired |
| US5730088A | Heat recovery steam generator | Mechanical Engineering; Lighting; Heating | 7 | Expired |
Source: USPTO / EPO open patent data. Counts and citation impact are objective bibliographic measures.