SANKO CO., LTD.
34Patents
21Active
34Granted
47Portfolio score
Filing activity: Dec 10, 1974 → Jul 28, 2021 · 7 expiring within 5 years
Most-cited patents
| Patent | Title | Area | Cited by | Status |
|---|---|---|---|---|
| US6539172B2 | Fluid heating device and cartridge for the same | Electricity | 58 | Expired |
| US6820761B1 | Folding container | Performing Operations; Transporting | 49 | Expired |
| US4029164A | Movable apparatus adhering to the surface of a wall | Emerging Cross-Sectional Technologies | 26 | Expired |
| US7063223B2 | Folding container | Performing Operations; Transporting | 25 | Expired |
| US3958652A | Apparatus movably adhering to a wall and adapted to carry a cleaning apparatus | Emerging Cross-Sectional Technologies | 16 | Expired |
| US7438197B2 | Combined module of folding container | Performing Operations; Transporting | 12 | Expired |
| US8064233B2 | Power supply regulating apparatus, semiconductor manufacturing apparatus, method for controlling power to heater, and method for manufacturing semiconductor device | Electricity | 12 | Active |
| US4744162A | Container and clip assembly | Performing Operations; Transporting | 9 | Expired |
| US5436367A | Intermediates for certain 4-oxoquinoline-3-carboxylic acid derivatives | Emerging Cross-Sectional Technologies | 6 | Expired |
| US7435769B2 | Flame resistant synthetic resin composition | Chemistry; Metallurgy | 6 | Expired |
| US8794464B2 | Assemblable and disassemblable container | Performing Operations; Transporting | 5 | Active |
| US6755481B2 | Cutting blade and method for cutting pavement in a circle | Fixed Constructions | 3 | Expired |
| US9242761B2 | Box pallet side wall | Performing Operations; Transporting | 3 | Active |
| US6579560B2 | Soybean processed food and method of producing the same | Human Necessities | 2 | Expired |
| US11945769B2 | N,N′-diarylurea derivative, manufacturing method thereof, and thermosensitive recording material using same | Performing Operations; Transporting | 1 | Active |
| US8851288B2 | Collapsible container | Performing Operations; Transporting | 1 | Active |
| US7650662B2 | Cleaning brush | Human Necessities | 1 | Active |
| US8997982B2 | Container | Performing Operations; Transporting | 1 | Active |
| US10301069B2 | Container | Performing Operations; Transporting | 1 | Active |
| US9394398B2 | Phosphorus-containing flame retardant epoxy resin | Chemistry; Metallurgy | 0 | Active |
| US9102696B2 | Phosphorus-based (meth)acrylate compound and method of preparing the same | Chemistry; Metallurgy | 0 | Active |
| US10975240B2 | Method for producing antioxidant and method for producing elastic polyurethane fiber | Textiles; Paper | 0 | Active |
| US8201701B2 | Folding container | Fixed Constructions | 0 | Active |
| US10086634B2 | Heat-sensitive recording material | Performing Operations; Transporting | 0 | Active |
| US9371438B2 | High melting point flame retardant crystal and method for manufacturing the same, epoxy resin composition containing the flame retardant, and prepreg and flame retardant laminate using the composition | Chemistry; Metallurgy | 0 | Active |
Source: USPTO / EPO open patent data. Counts and citation impact are objective bibliographic measures.