Water Refining, Inc.
17Patents
0Active
17Granted
32Portfolio score
Filing activity: May 19, 1976 → May 19, 1998
Most-cited patents
| Patent | Title | Area | Cited by | Status |
|---|---|---|---|---|
| US5725758A | Filtration system and assembly | Performing Operations; Transporting | 32 | Expired |
| US4347132A | Reverse osmosis expansible pressurized permeate storage having permeate and concentrate controls | Emerging Cross-Sectional Technologies | 25 | Expired |
| US4385357A | Water treatment system and control therefor | Chemistry; Metallurgy | 23 | Expired |
| US4207397A | Method for recovering and treating brine from water softener regeneration | Performing Operations; Transporting | 23 | Expired |
| US4235715A | Process for removing alkalinity and hardness from waters | Chemistry; Metallurgy | 22 | Expired |
| US4568465A | Water treatment system and control therefor | Chemistry; Metallurgy | 21 | Expired |
| US4426285A | Water softening and treatment system | Performing Operations; Transporting | 19 | Expired |
| US4104158A | Volume and time of day control for water softener regeneration | Emerging Cross-Sectional Technologies | 18 | Expired |
| US4289617A | Water softening and reverse osmosis system | Performing Operations; Transporting | 16 | Expired |
| US4329225A | Mixed bed deionizer | Performing Operations; Transporting | 12 | Expired |
| US6149824A | Continuous filtration system using single pump, venturi, and flow control valve | Performing Operations; Transporting | 11 | Expired |
| USD274929S | Combined water treatment and storage unit | General | 10 | Expired |
| US4009102A | Containerized water refiner exchange system | Performing Operations; Transporting | 9 | Expired |
| US4217011A | Water softener cabinet | Performing Operations; Transporting | 4 | Expired |
| US4416773A | Valve mechanism for multiple distributor fluid treatment system | Performing Operations; Transporting | 2 | Expired |
| US4387021A | System for handling exhausted vermiculite cation exchange materials | Emerging Cross-Sectional Technologies | 2 | Expired |
| US4343699A | Convertible dual container storage system | Performing Operations; Transporting | 1 | Expired |
Source: USPTO / EPO open patent data. Counts and citation impact are objective bibliographic measures.