Intermountain Research & Development Corporation
17Patents
0Active
17Granted
33Portfolio score
Filing activity: Jan 11, 1974 → Jul 16, 1985
Most-cited patents
| Patent | Title | Area | Cited by | Status |
|---|---|---|---|---|
| US4498706A | Solution mining of trona or nahcolite ore with aqueous NaOH and HCl solvents | Fixed Constructions | 46 | Expired |
| US4652054A | Solution mining of trona or nahcolite ore with electrodialytically-produced aqueous sodium hydroxide | Fixed Constructions | 41 | Expired |
| US4401635A | Recovery of alkali values from salt-containing trona deposits | Fixed Constructions | 39 | Expired |
| US3933977A | Process for producing sodium carbonate | Chemistry; Metallurgy | 23 | Expired |
| US3981686A | Clarifier process for producing sodium carbonate | Chemistry; Metallurgy | 22 | Expired |
| US4654204A | Production of sodium bicarbonate by reversion of soda-type feed salt | Chemistry; Metallurgy | 20 | Expired |
| US4588569A | Dry injection flue gas desulfurization process using absorptive soda ash sorbent | Performing Operations; Transporting | 19 | Expired |
| US4285915A | Recovery of alkali values from trona ore | Emerging Cross-Sectional Technologies | 18 | Expired |
| US4375454A | Electrostatic enrichment of trona and nahcolite ores | Emerging Cross-Sectional Technologies | 14 | Expired |
| US4555391A | Dry injection flue gas desulfurization process | Performing Operations; Transporting | 13 | Expired |
| US4021527A | Production of sodium carbonate | Chemistry; Metallurgy | 13 | Expired |
| US4519806A | Enhanced recovery of soda ash from aqueous sodium carbonate solutions containing Na.sub.2 SO.sub.4 - and NaCl | Chemistry; Metallurgy | 12 | Expired |
| US4219133A | Storage level monitor | Physics | 11 | Expired |
| US4781899A | Purification of crystallized solids made via continuous crystallization | Performing Operations; Transporting | 11 | Expired |
| US4557910A | Production of soda ash from nahcolite | Chemistry; Metallurgy | 9 | Expired |
| US4019872A | Producing sodium carbonate monohydrate from carbonate solution including addition of aluminum ions | Chemistry; Metallurgy | 7 | Expired |
| US4462794A | Method of operating a rotary calciner retrofitted to coal-firing | Emerging Cross-Sectional Technologies | 7 | Expired |
Source: USPTO / EPO open patent data. Counts and citation impact are objective bibliographic measures.