Indugas, Inc.
18Patents
0Active
18Granted
33Portfolio score
Filing activity: Jul 6, 1987 → Sep 11, 1997
Most-cited patents
| Patent | Title | Area | Cited by | Status |
|---|---|---|---|---|
| US5082055A | Gas fired radiant tube heater | Fixed Constructions | 309 | Expired |
| US5020596A | Enhanced oil recovery system with a radiant tube heater | Fixed Constructions | 289 | Expired |
| US4913065A | In situ thermal waste disposal system | Performing Operations; Transporting | 238 | Expired |
| US5997286A | Thermal treating apparatus and process | Mechanical Engineering; Lighting; Heating | 40 | Expired |
| US4959009A | Pulse burner and method of operation | Mechanical Engineering; Lighting; Heating | 39 | Expired |
| US5224542A | Gas fired radiant tube heater | Emerging Cross-Sectional Technologies | 22 | Expired |
| US5249436A | Simplified, low cost absorption heat pump | Emerging Cross-Sectional Technologies | 20 | Expired |
| US5090891A | Hybrid combustion device and system therefor | Mechanical Engineering; Lighting; Heating | 12 | Expired |
| US5297959A | High temperature furnace | Mechanical Engineering; Lighting; Heating | 11 | Expired |
| US4781171A | Gas fired particulate melting apparatus and method | Mechanical Engineering; Lighting; Heating | 9 | Expired |
| US5228513A | Convective heat transfer by cascading jet impingement | Emerging Cross-Sectional Technologies | 7 | Expired |
| US5207972A | High temperature furnace | Mechanical Engineering; Lighting; Heating | 6 | Expired |
| US5078368A | Gas fired melting furnace | Emerging Cross-Sectional Technologies | 5 | Expired |
| US5295822A | Convective heat transfer by cascading jet impingement in a batch coil annealling furnace | Emerging Cross-Sectional Technologies | 5 | Expired |
| US5492168A | High convective heat transfer immersion heater/cooler | Emerging Cross-Sectional Technologies | 2 | Expired |
| US5697778A | Daisywheel convector plate for batch coil annealing furnace | Chemistry; Metallurgy | 1 | Expired |
| US5419699A | Seal arrangement for batch coil annealing furnace | Mechanical Engineering; Lighting; Heating | 1 | Expired |
| US5290017A | Cooling cover for batch coil annealing furnace | Chemistry; Metallurgy | 1 | Expired |
Source: USPTO / EPO open patent data. Counts and citation impact are objective bibliographic measures.