Amax Inc.
206Patents
4Active
206Granted
42Portfolio score
Filing activity: Feb 8, 1974 → Jan 3, 2021
Most-cited patents
| Patent | Title | Area | Cited by | Status |
|---|---|---|---|---|
| US3941589A | Abrasion-resistant refrigeration-hardenable white cast iron | Chemistry; Metallurgy | 107 | Expired |
| US4753690A | Method for producing composite material having an aluminum alloy matrix with a silicon carbide reinforcement | Emerging Cross-Sectional Technologies | 73 | Expired |
| US4662429A | Composite material having matrix of aluminum or aluminum alloy with dispersed fibrous or particulate reinforcement | Emerging Cross-Sectional Technologies | 73 | Expired |
| US4657065A | Composite materials having a matrix of magnesium or magnesium alloy reinforced with discontinuous silicon carbide particles | Performing Operations; Transporting | 67 | Expired |
| US4713111A | Production of aluminum-SiC composite using sodium tetrasborate as an addition agent | Emerging Cross-Sectional Technologies | 65 | Expired |
| US4240886A | Electrowinning using fluidized bed apparatus | Chemistry; Metallurgy | 50 | Expired |
| US4443415A | Recovery of V.sub.2 O.sub.5 and nickel values from petroleum coke | Emerging Cross-Sectional Technologies | 45 | Expired |
| US4689156A | Removal of ammonia from wastewater | Emerging Cross-Sectional Technologies | 42 | Expired |
| US4149969A | Process and composition for inhibiting corrosion of metal parts in water systems | Chemistry; Metallurgy | 38 | Expired |
| US3991159A | High temperature neutralization of laterite leach slurry | Chemistry; Metallurgy | 33 | Expired |
| US4666474A | Electrostatic precipitators | Performing Operations; Transporting | 33 | Expired |
| US4900522A | Separation of nickel and cobalt from sulfate solutions by solvent extraction | Emerging Cross-Sectional Technologies | 32 | Expired |
| US4572085A | Coal combustion to produce clean low-sulfur exhaust gas | Mechanical Engineering; Lighting; Heating | 29 | Expired |
| US4026797A | Precipitation of selenium from copper electrowinning solutions | Emerging Cross-Sectional Technologies | 27 | Expired |
| US4313837A | Using molybdates to inhibit corrosion in water-based metalworking fluids | Chemistry; Metallurgy | 27 | Expired |
| US4072543A | Dual-phase hot-rolled steel strip | Chemistry; Metallurgy | 26 | Expired |
| US4598652A | Coal combustion to produce clean low-sulfur exhaust gas | Mechanical Engineering; Lighting; Heating | 25 | Expired |
| US4044096A | Sulfuric acid leaching of nickeliferous laterite | Chemistry; Metallurgy | 24 | Expired |
| US4926021A | Reactive gas sample introduction system for an inductively coupled plasma mass spectrometer | Electricity | 24 | Expired |
| US4610722A | Process for metal recovery from steel plant dust | Emerging Cross-Sectional Technologies | 24 | Expired |
| US4732888A | Durable zinc ferrite sorbent pellets for hot coal gas desulfurization | Emerging Cross-Sectional Technologies | 24 | Expired |
| US4698163A | Treatment of phosphate-containing wastewater | Emerging Cross-Sectional Technologies | 22 | Expired |
| US4204595A | Adjustable conveyor belt skirtboard | Performing Operations; Transporting | 22 | Expired |
| US3957946A | Molybdenum oxide purification process | Emerging Cross-Sectional Technologies | 21 | Expired |
| US4046852A | Purification process for technical grade molybdenum oxide | Chemistry; Metallurgy | 20 | Expired |
Source: USPTO / EPO open patent data. Counts and citation impact are objective bibliographic measures.