CRUCIBLE, LLC
38Patents
4Active
38Granted
38Portfolio score
Filing activity: Sep 14, 1971 → Jun 12, 2018 · 1 expiring within 5 years
Most-cited patents
| Patent | Title | Area | Cited by | Status |
|---|---|---|---|---|
| US3940268A | Method for producing rotor discs | Emerging Cross-Sectional Technologies | 52 | Expired |
| US3992202A | Method for producing aperture-containing powder-metallurgy article | Performing Operations; Transporting | 35 | Expired |
| US4374075A | Method for the plasma-arc production of metal powder | Performing Operations; Transporting | 35 | Expired |
| US3992200A | Method of hot pressing using a getter | Performing Operations; Transporting | 33 | Expired |
| US4032337A | Method and apparatus for pressurizing hot-isostatic pressure vessels | Emerging Cross-Sectional Technologies | 28 | Expired |
| US4249945A | Powder-metallurgy steel article with high vanadium-carbide content | Chemistry; Metallurgy | 25 | Expired |
| US4119765A | Welded ferritic stainless steel articles | Emerging Cross-Sectional Technologies | 24 | Expired |
| US4827215A | Method of and apparatus for magnetic saturation testing a wire rope for defects | Physics | 22 | Expired |
| US3939241A | Method for powder metallurgy compacting | Emerging Cross-Sectional Technologies | 17 | Expired |
| US4520255A | High frequency self-oscillating welding apparatus | Electricity | 17 | Expired |
| US5036277A | Method of and apparatus for detecting cross sectional area variations in an elongate object by the non-inductive measurement of radial flux variations | Physics | 17 | Expired |
| US4453073A | High frequency welding apparatus | Electricity | 17 | Expired |
| US3957544A | Ferritic stainless steels | Emerging Cross-Sectional Technologies | 15 | Expired |
| US4469514A | Sintered high speed tool steel alloy composition | Performing Operations; Transporting | 14 | Expired |
| US4929897A | Method and apparatus for detecting cross sectional area variations in a elongate object by measuring radial magnetic flux variations using spaced-apart coils | Physics | 13 | Expired |
| US4219357A | Method for producing powder metallurgy articles | Chemistry; Metallurgy | 12 | Expired |
| US4094672A | Method and container for hot isostatic compacting | Emerging Cross-Sectional Technologies | 10 | Expired |
| US8302348B2 | Automatic pet door | Fixed Constructions | 9 | Active |
| US4359210A | Temperature control apparatus | Electricity | 9 | Expired |
| US3937269A | Mold powder composition and method for continuously casting employing the same | Performing Operations; Transporting | 8 | Expired |
| US4722485A | Grinding mill control | Performing Operations; Transporting | 8 | Expired |
| US4139393A | Ceramic core for use in making molds and dies | Performing Operations; Transporting | 8 | Expired |
| US4140528A | Nickel-base superalloy compacted articles | Emerging Cross-Sectional Technologies | 8 | Expired |
| US4009233A | Method for producing alloy particles | Performing Operations; Transporting | 4 | Expired |
| US4309159A | Refractory nozzle | Performing Operations; Transporting | 4 | Expired |
Source: USPTO / EPO open patent data. Counts and citation impact are objective bibliographic measures.