Environmental Elements Corporation
29Patents
0Active
29Granted
35Portfolio score
Filing activity: Dec 9, 1974 → Aug 7, 2000
Most-cited patents
| Patent | Title | Area | Cited by | Status |
|---|---|---|---|---|
| US4655804A | Hopper gas distribution system | Performing Operations; Transporting | 103 | Expired |
| US5733360A | Corona discharge reactor and method of chemically activating constituents thereby | Emerging Cross-Sectional Technologies | 73 | Expired |
| US5707428A | Laminar flow electrostatic precipitation system | Performing Operations; Transporting | 63 | Expired |
| US4895491A | Fan blade protection system | Emerging Cross-Sectional Technologies | 47 | Expired |
| US5785932A | Catalytic reactor for oxidizing mercury vapor | Emerging Cross-Sectional Technologies | 41 | Expired |
| US5695549A | System for removing fine particulates from a gas stream | Emerging Cross-Sectional Technologies | 40 | Expired |
| US6245132A | Air filter with combined enhanced collection efficiency and surface sterilization | Performing Operations; Transporting | 37 | Expired |
| US4343194A | Flow sensing apparatus | Physics | 22 | Expired |
| US5626652A | Laminar flow electrostatic precipitator having a moving electrode | Emerging Cross-Sectional Technologies | 18 | Expired |
| US4446027A | Buoyant media filter | Performing Operations; Transporting | 17 | Expired |
| US4811197A | Electrostatic dust collector system | Physics | 13 | Expired |
| US4617131A | Method and system of cleansing a filter bed | Performing Operations; Transporting | 13 | Expired |
| US4372170A | Flow measuring apparatus | Physics | 12 | Expired |
| US4764288A | Method and system for cleansing a filter bed | Performing Operations; Transporting | 12 | Expired |
| US4251027A | Variable volume control assembly | Emerging Cross-Sectional Technologies | 11 | Expired |
| US5311420A | Automatic back corona detection and protection system | Emerging Cross-Sectional Technologies | 11 | Expired |
| US4609009A | Stepped plenum system | Emerging Cross-Sectional Technologies | 10 | Expired |
| US4481172A | Process for removal of sulfur oxides from waste gases | Performing Operations; Transporting | 9 | Expired |
| US4026683A | Inlet duct and hopper apparatus for electrostatic precipitators | Performing Operations; Transporting | 9 | Expired |
| US5229077A | Sulfur rate control system | Emerging Cross-Sectional Technologies | 9 | Expired |
| US3972701A | Electrostatic precipitator having electrode stabilizer means | Performing Operations; Transporting | 8 | Expired |
| US4166036A | Floating skimming apparatus | Performing Operations; Transporting | 7 | Expired |
| US5725638A | Modular electrostatic precipitation dust collection plate assembly | Emerging Cross-Sectional Technologies | 6 | Expired |
| US4196849A | Variable volume control assembly | Emerging Cross-Sectional Technologies | 4 | Expired |
| US4048076A | Center column drive arrangement for circular clarifiers | Performing Operations; Transporting | 4 | Expired |
Source: USPTO / EPO open patent data. Counts and citation impact are objective bibliographic measures.