Moltech Invent S.A.
98Patents
1Active
98Granted
35Portfolio score
Filing activity: Sep 2, 1987 → Mar 18, 2005 · 1 expiring within 5 years
Most-cited patents
| Patent | Title | Area | Cited by | Status |
|---|---|---|---|---|
| US5368702A | Electrode assemblies and mutimonopolar cells for aluminium electrowinning | Chemistry; Metallurgy | 45 | Expired |
| US5364513A | Electrochemical cell component or other material having oxidation preventive coating | Chemistry; Metallurgy | 34 | Expired |
| US5310476A | Application of refractory protective coatings, particularly on the surface of electrolytic cell components | Emerging Cross-Sectional Technologies | 32 | Expired |
| US4948676A | Cermet material, cermet body and method of manufacture | Chemistry; Metallurgy | 31 | Expired |
| US6692620B2 | Aluminium electrowinning cell with sidewalls resistant to molten electrolyte | Chemistry; Metallurgy | 30 | Expired |
| US5340448A | Aluminum electrolytic cell method with application of refractory protective coatings on cello components | Emerging Cross-Sectional Technologies | 28 | Expired |
| US5019225A | Molten salt electrowinning electrode, method and cell | Chemistry; Metallurgy | 26 | Expired |
| US4960494A | Ceramic/metal composite material | Chemistry; Metallurgy | 25 | Expired |
| US5362366A | Anode-cathode arrangement for aluminum production cells | Chemistry; Metallurgy | 25 | Expired |
| US5527442A | Refractory protective coated electroylytic cell components | Emerging Cross-Sectional Technologies | 24 | Expired |
| US5534130A | Application of phosphates of aluminum to carbonaceous components of aluminum production cells | Chemistry; Metallurgy | 23 | Expired |
| US6113758A | Porous non-carbon metal-based anodes for aluminium production cells | Chemistry; Metallurgy | 23 | Expired |
| US5397450A | Carbon-based bodies in particular for use in aluminium production cells | Chemistry; Metallurgy | 22 | Expired |
| US5378327A | Treated carbon cathodes for aluminum production, the process of making thereof and the process of using thereof | Chemistry; Metallurgy | 21 | Expired |
| US4956068A | Non-consumable anode for molten salt electrolysis | Chemistry; Metallurgy | 21 | Expired |
| US5413689A | Carbon containing body or mass useful as cell component | Chemistry; Metallurgy | 20 | Expired |
| US5725744A | Cell for the electrolysis of alumina at low temperatures | Chemistry; Metallurgy | 19 | Expired |
| US5316718A | Composite electrode for electrochemical processing having improved high temperature properties and method for preparation by combustion synthesis | Chemistry; Metallurgy | 19 | Expired |
| US5069771A | Molten salt electrolysis with non-consumable anode | Chemistry; Metallurgy | 19 | Expired |
| US5071533A | Cathode current collector for aluminum cells | Chemistry; Metallurgy | 19 | Expired |
| US5364442A | Composite electrode for electrochemical processing having improved high temperature properties and method for preparation by combustion synthesis | Chemistry; Metallurgy | 16 | Expired |
| US6077415A | Multi-layer non-carbon metal-based anodes for aluminum production cells and method | Chemistry; Metallurgy | 15 | Expired |
| US5320717A | Bonding of bodies of refractory hard materials to carbonaceous supports | Chemistry; Metallurgy | 14 | Expired |
| US6248227A | Slow consumable non-carbon metal-based anodes for aluminium production cells | Chemistry; Metallurgy | 13 | Expired |
| US6001236A | Application of refractory borides to protect carbon-containing components of aluminium production cells | Chemistry; Metallurgy | 11 | Expired |
Source: USPTO / EPO open patent data. Counts and citation impact are objective bibliographic measures.