Robert Bruce Wagstaff
58Patents
9h-index
65Co-inventors
81Inventor score
Filing activity: Aug 14, 1991 → Aug 31, 2023
Most-cited inventions
| Patent | Title | Area | Cited by | Status |
|---|---|---|---|---|
| US7472740B2 | Method for casting composite ingot | Emerging Cross-Sectional Technologies | 29 | Expired |
| US6260602A | Casting of molten metal in an open ended mold cavity | Performing Operations; Transporting | 19 | Expired |
| US7748434B2 | Sequential casting of metals having high co-efficients of contraction | Performing Operations; Transporting | 15 | Active |
| US5318098A | Metal casting unit | Performing Operations; Transporting | 14 | Expired |
| US8927113B2 | Composite metal ingot | Emerging Cross-Sectional Technologies | 13 | Active |
| US5582230A | Direct cooled metal casting process and apparatus | Performing Operations; Transporting | 11 | Expired |
| US5119883A | Apparatus and process for direct cooling an emerging ingot with gas-laden coolant | Performing Operations; Transporting | 11 | Expired |
| US5518063A | Direct cooled metal casting apparatus | Performing Operations; Transporting | 11 | Expired |
| US7819170B2 | Method for casting composite ingot | Emerging Cross-Sectional Technologies | 10 | Active |
| US8336603B2 | Oxide restraint during co-casting of metals | Performing Operations; Transporting | 8 | Active |
| US7762310B2 | Cladding superplastic alloys | Emerging Cross-Sectional Technologies | 8 | Active |
| US6546995B1 | Casting of molten metal in an open ended mold cavity | Performing Operations; Transporting | 8 | Expired |
| US7516775B2 | Homogenization and heat-treatment of cast metals | Emerging Cross-Sectional Technologies | 8 | Active |
| US5685359A | Direct cooled annular mold | Performing Operations; Transporting | 7 | Expired |
| US6158498A | Casting of molten metal in an open ended mold cavity | Performing Operations; Transporting | 7 | Expired |
| US8347949B2 | Elimination of shrinkage cavity in cast ingots | Performing Operations; Transporting | 7 | Active |
| US7882887B2 | Sequential casting of metals having the same or similar co-efficients of contraction | Performing Operations; Transporting | 7 | Active |
| US8657164B2 | Molten metal leakage confinement and thermal optimization in vessels used for containing molten metal | Mechanical Engineering; Lighting; Heating | 6 | Active |
| US8415025B2 | Composite metal as cast ingot | Emerging Cross-Sectional Technologies | 5 | Active |
| US8096344B2 | Sequential casting of metals having similar freezing ranges | Performing Operations; Transporting | 5 | Active |
| US7871478B2 | Homogenization and heat-treatment of cast metals | Emerging Cross-Sectional Technologies | 4 | Active |
| US8312915B2 | Method for casting composite ingot | Emerging Cross-Sectional Technologies | 4 | Active |
| US5323841A | Annular metal casting unit | Performing Operations; Transporting | 4 | Expired |
| US7975752B2 | Co-casting of metals by direct chill casting | Performing Operations; Transporting | 3 | Active |
| US8945465B2 | Compressive rod assembly for molten metal containment structure | Emerging Cross-Sectional Technologies | 2 | Active |
Source: USPTO / EPO open patent data. Inventor disambiguation is heuristic; counts are objective bibliographic measures.