Environmental Dynamics, Inc.
22Patents
7Active
22Granted
35Portfolio score
Filing activity: Apr 9, 1979 → Apr 30, 2009 · 7 expiring within 5 years
Most-cited patents
| Patent | Title | Area | Cited by | Status |
|---|---|---|---|---|
| US4563277A | Apparatus for aerating and mixing waste water | Emerging Cross-Sectional Technologies | 49 | Expired |
| US5846412A | Diffuser construction and mounting arrangement | Performing Operations; Transporting | 34 | Expired |
| US5133876A | Method and apparatus for aerating wastewater using sequential aeration of different zones | Emerging Cross-Sectional Technologies | 34 | Expired |
| US6543753B1 | Air diffuser membrane treated with biocide | Emerging Cross-Sectional Technologies | 33 | Expired |
| US5587114A | Aeration system employing retrievable aeration modules | Emerging Cross-Sectional Technologies | 30 | Expired |
| US5013493A | Staggered diffuser arrangement for waste water treatment systems | Performing Operations; Transporting | 25 | Expired |
| US5032325A | Plastic coarse bubble diffuser for waste water aeration systems | Performing Operations; Transporting | 17 | Expired |
| US5059358A | Tubular diffuser with adjustable plug | Performing Operations; Transporting | 16 | Expired |
| US6863810B2 | Wastewater aeration system with lift out lateral pipes and diffusers | Emerging Cross-Sectional Technologies | 16 | Expired |
| US7044453B2 | Membrane diffuser with uniform gas distribution | Emerging Cross-Sectional Technologies | 13 | Expired |
| US6497402B2 | Diffuser mounting system for aeration of liquids | Performing Operations; Transporting | 11 | Expired |
| US5788847A | Diffuser construction and mounting arrangement | Performing Operations; Transporting | 10 | Expired |
| US4243521A | Method and apparatus for aerobically treating wastewater | Emerging Cross-Sectional Technologies | 7 | Expired |
| US7934704B2 | Retrievable diffuser module with internal ballast/buoyancy chamber | Performing Operations; Transporting | 5 | Active |
| US7041219B2 | Method and apparatus for enhancing wastewater treatment in lagoons | Emerging Cross-Sectional Technologies | 4 | Expired |
| US8061689B2 | Disk diffuser with improved seal | Emerging Cross-Sectional Technologies | 4 | Active |
| US7544286B2 | Method and apparatus for enhancing aquatic environments | Emerging Cross-Sectional Technologies | 4 | Active |
| US6770200B2 | Method and apparatus for enhancing wastewater treatment in lagoons | Emerging Cross-Sectional Technologies | 4 | Expired |
| US8016272B2 | Retrievable diffuser module with truss construction | Performing Operations; Transporting | 3 | Active |
| US7815974B2 | Gas diffuser membrane with coated substrate | Emerging Cross-Sectional Technologies | 2 | Active |
| US7713415B2 | Method and apparatus for enhancing aquatic environments | Emerging Cross-Sectional Technologies | 2 | Active |
| US8011643B2 | Diffuser assembly with buoyancy vessel | Emerging Cross-Sectional Technologies | 2 | Active |
Source: USPTO / EPO open patent data. Counts and citation impact are objective bibliographic measures.