ECO-TEC LTD.
16Patents
1Active
16Granted
34Portfolio score
Filing activity: Sep 13, 1977 → Aug 20, 2015
Most-cited patents
| Patent | Title | Area | Cited by | Status |
|---|---|---|---|---|
| US4673507A | Fluid treatment process and apparatus | Chemistry; Metallurgy | 96 | Expired |
| US5162079A | Process and apparatus for control of electroplating bath composition | Chemistry; Metallurgy | 72 | Expired |
| US4666683A | Process for removal of copper from solutions of chelating agent and copper | Emerging Cross-Sectional Technologies | 41 | Expired |
| US4778572A | Process for electroplating metals | Chemistry; Metallurgy | 25 | Expired |
| US5173170A | Process for electroplating metals | Chemistry; Metallurgy | 17 | Expired |
| US5500098A | Process for regeneration of volatile acids | Emerging Cross-Sectional Technologies | 16 | Expired |
| US5792441A | Fixed-resin bed technologies for the treatment of the chlorine dioxide generator effluent and feeds stream | Emerging Cross-Sectional Technologies | 13 | Expired |
| US4832812A | Apparatus for electroplating metals | Chemistry; Metallurgy | 12 | Expired |
| US4906340A | Process for electroplating metals | Chemistry; Metallurgy | 10 | Expired |
| US7045067B2 | Method and apparatus for increasing filter contaminant loading capacity | Performing Operations; Transporting | 10 | Expired |
| US5547579A | Process and apparatus for purification of contaminated acids | Performing Operations; Transporting | 6 | Expired |
| US5922171A | Method and apparatus for removing sodium chloride from pulping chemicals using an amphoteric ion-exchange resin | Emerging Cross-Sectional Technologies | 5 | Expired |
| USRE34191E | Process for electroplating metals | General | 5 | Expired |
| US4186174A | Process and apparatus for obtaining a more concentrated solution of a component using ion exchange beds | Emerging Cross-Sectional Technologies | 3 | Expired |
| US5942084A | Process for the separation of sulphides from pulping liquors using amphoteric resins | Emerging Cross-Sectional Technologies | 2 | Expired |
| US10898891B2 | Process for stripping carbamate from ion exchange resin | Emerging Cross-Sectional Technologies | 0 | Active |
Source: USPTO / EPO open patent data. Counts and citation impact are objective bibliographic measures.