Ionics, Incorporated
126Patents
0Active
126Granted
42Portfolio score
Filing activity: Oct 29, 1974 → Aug 12, 2004
Most-cited patents
| Patent | Title | Area | Cited by | Status |
|---|---|---|---|---|
| US4731049A | Cell for electrically controlled transdermal drug delivery | Human Necessities | 191 | Expired |
| US5066375A | Introducing and removing ion-exchange and other particulates from an assembled electrodeionization stack | Chemistry; Metallurgy | 155 | Expired |
| US6733636B1 | Water treatment method for heavy oil production | Emerging Cross-Sectional Technologies | 150 | Expired |
| US5147553A | Selectively permeable barriers | Performing Operations; Transporting | 119 | Expired |
| US5026465A | Electrodeionization polarity reversal apparatus and process | Chemistry; Metallurgy | 105 | Expired |
| US5693227A | Catalyst mediated method of interfacial polymerization on a microporous support, and polymers, fibers, films and membranes made by such method | Performing Operations; Transporting | 90 | Expired |
| US5120416A | Introducing and removing ion-exchange and other particulates from an assembled electrodeionization stack | Chemistry; Metallurgy | 80 | Expired |
| US4871431A | Apparatus for the removal of dissolved solids from liquids using bipolar membranes | Chemistry; Metallurgy | 78 | Expired |
| US5203976A | Introducing and removing ion-exchange and other particulates rom an assembled electrodeionization stack | Chemistry; Metallurgy | 75 | Expired |
| US4298442A | Electrodialysis process for silica removal | Performing Operations; Transporting | 75 | Expired |
| US5503729A | Electrodialysis including filled cell electrodialysis (electrodeionization) | Chemistry; Metallurgy | 72 | Expired |
| US4969983A | Apparatus and process for the removal of acidic and basic gases from fluid mixtures using bipolar membranes | Chemistry; Metallurgy | 71 | Expired |
| US4505797A | Ion-exchange membranes reinforced with non-woven carbon fibers | Performing Operations; Transporting | 69 | Expired |
| US5891328A | Membrane-frame for processes including electrodialysis | Chemistry; Metallurgy | 67 | Expired |
| US4594135A | Process and apparatus for electrically desorbing components selectively sorbed on granules | Performing Operations; Transporting | 66 | Expired |
| US4584075A | Process and apparatus for electrically desorbing components selectively sorbed on an electrolytically conducting barrier | Emerging Cross-Sectional Technologies | 65 | Expired |
| US4216073A | Ion exchange resin containing activated carbon | Performing Operations; Transporting | 64 | Expired |
| US5814197A | Electrodialysis including filled cell electrodialysis (electrodeionization) | Chemistry; Metallurgy | 62 | Expired |
| US5679229A | Electrodialysis including filled cell electrodialysis (electrodeionization) | Chemistry; Metallurgy | 61 | Expired |
| US4191811A | Ion exchange membranes based upon polyphenylene sulfide and fluorocarbon polymeric binder | Chemistry; Metallurgy | 60 | Expired |
| US5679228A | Electrodialysis including filled cell electrodialysis (electrodeionization) | Chemistry; Metallurgy | 59 | Expired |
| US4608140A | Electrodialysis apparatus and process | Performing Operations; Transporting | 58 | Expired |
| US4242185A | Process and apparatus for controlling impurities and pollution from membrane chlor-alkali cells | Emerging Cross-Sectional Technologies | 58 | Expired |
| US6582605B2 | Method of treating industrial waste waters | Emerging Cross-Sectional Technologies | 57 | Expired |
| US4217186A | Process for chloro-alkali electrolysis cell | Chemistry; Metallurgy | 55 | Expired |
Source: USPTO / EPO open patent data. Counts and citation impact are objective bibliographic measures.