QUESTEK INNOVATIONS LLC
32Patents
24Active
32Granted
49Portfolio score
Filing activity: Aug 15, 1997 → Oct 31, 2022 · 5 expiring within 5 years
Most-cited patents
| Patent | Title | Area | Cited by | Status |
|---|---|---|---|---|
| US8801872B2 | Secondary-hardening gear steel | Chemistry; Metallurgy | 23 | Active |
| US8808471B2 | Martensitic stainless steel strengthened by copper-nucleated nitride precipitates | Chemistry; Metallurgy | 21 | Active |
| US7235212B2 | Nanocarbide precipitation strengthened ultrahigh strength, corrosion resistant, structural steels and method of making said steels | Chemistry; Metallurgy | 19 | Expired |
| US6091578A | Disk drive actuator components made of composite material including fibers | Physics | 19 | Expired |
| US5978178A | Disk drive actuator assembly with arm having high stiffness to mass ratio | Physics | 16 | Expired |
| US5956211A | Chip attached to actuator arm having heat conducting fibers | Physics | 14 | Expired |
| US7160399B2 | Nanocarbide precipitation strengthened ultrahigh-strength, corrosion resistant, structural steels | Chemistry; Metallurgy | 14 | Expired |
| US6278583A | Low impedance head/preamplifier chip position in a disk drive | Physics | 11 | Expired |
| US9631262B2 | Cobalt alloys | Chemistry; Metallurgy | 10 | Active |
| US7316753B2 | Coherent nanodispersion-strengthened shape-memory alloys | Chemistry; Metallurgy | 8 | Expired |
| US7879159B2 | Martensitic stainless steel strengthened by Ni3Ti η-phase precipitation | Chemistry; Metallurgy | 8 | Active |
| US9845520B2 | Beryllium-free high-strength copper alloys | Mechanical Engineering; Lighting; Heating | 6 | Active |
| US9914987B2 | Martensitic stainless steel strengthened by copper-nucleated nitride precipitates | Chemistry; Metallurgy | 6 | Active |
| US10471503B2 | Titanium alloys | Chemistry; Metallurgy | 6 | Active |
| US5930083A | Hot crimp attachment of suspension to actuator arm in a disk drive | Physics | 5 | Expired |
| US7967927B2 | Nanocarbide precipitation strengthened ultrahigh-strength, corrosion resistant, structural steels | Chemistry; Metallurgy | 5 | Active |
| US10351922B2 | Surface hardenable stainless steels | Chemistry; Metallurgy | 4 | Active |
| US10597757B2 | Ductile high-temperature molybdenum-based alloys | Mechanical Engineering; Lighting; Heating | 4 | Active |
| US11118247B2 | Highly processable single crystal nickel alloys | Mechanical Engineering; Lighting; Heating | 4 | Active |
| US10711329B2 | Beryllium-free high-strength copper alloys | Mechanical Engineering; Lighting; Heating | 4 | Active |
| US10941473B2 | Aluminum alloys | Emerging Cross-Sectional Technologies | 4 | Active |
| US10351921B2 | Martensitic stainless steel strengthened by copper-nucleated nitride precipitates | Chemistry; Metallurgy | 4 | Active |
| US10519529B2 | Nickel-based alloys | Mechanical Engineering; Lighting; Heating | 4 | Active |
| US11780003B2 | Titanium alloys | Emerging Cross-Sectional Technologies | 1 | Active |
| US11780014B2 | Auto-tempering steels for additive manufacturing | Emerging Cross-Sectional Technologies | 1 | Active |
Source: USPTO / EPO open patent data. Counts and citation impact are objective bibliographic measures.