Wilhelm Environmental Technologies
12Patents
0Active
12Granted
30Portfolio score
Filing activity: Mar 15, 1990 → Jun 3, 1997
Most-cited patents
| Patent | Title | Area | Cited by | Status |
|---|---|---|---|---|
| US5032154A | Flue gas conditioning system | Performing Operations; Transporting | 60 | Expired |
| US5288303A | Flue gas conditioning system | Chemistry; Metallurgy | 24 | Expired |
| US5240470A | In-duct flue gas conditioning system | Performing Operations; Transporting | 18 | Expired |
| US5449390A | Flue gas conditioning system using vaporized sulfuric acid | Emerging Cross-Sectional Technologies | 18 | Expired |
| US5356597A | In-duct flue gas conditioning system | Chemistry; Metallurgy | 12 | Expired |
| US5547495A | Flue gas conditioning system | Performing Operations; Transporting | 11 | Expired |
| US5261931A | Flue gas conditioning system | Performing Operations; Transporting | 9 | Expired |
| US5665142A | Flue gas conditioning system and method using native SO.sub.2 feedstock | Performing Operations; Transporting | 8 | Expired |
| US5288309A | Flue gas conditioning agent demand control apparatus | Chemistry; Metallurgy | 6 | Expired |
| US5681375A | Boiler flue gas conditioning system using dilute sulfuric acid injection | Performing Operations; Transporting | 4 | Expired |
| US5350441A | Flue gas conditioning system | Chemistry; Metallurgy | 2 | Expired |
| US6045770A | Sulfur dioxide generation using granulated or emulsoid sulfur feedstock | Performing Operations; Transporting | 1 | Expired |
Source: USPTO / EPO open patent data. Counts and citation impact are objective bibliographic measures.