SUMITOMO BAKELITE CO., LTD.
632Patents
343Active
632Granted
55Portfolio score
Filing activity: Feb 19, 1974 → May 20, 2022 · 171 expiring within 5 years
Most-cited patents
| Patent | Title | Area | Cited by | Status |
|---|---|---|---|---|
| US5188102A | Surgical ultrasonic horn | Human Necessities | 1,454 | Expired |
| US5205817A | Surgical instrument | Human Necessities | 264 | Expired |
| US5058570A | Ultrasonic surgical apparatus | Human Necessities | 258 | Expired |
| US5180363A | Operation device | Performing Operations; Transporting | 246 | Expired |
| US8705925B2 | Optical waveguide film, laminated type optical waveguide film, optical waveguide, optical waveguide assembly, optical wiring line, optical/electrical combination substrate and electronic device | Chemistry; Metallurgy | 223 | Active |
| US7357805B2 | Clip device for endoscope and clip for endoscope for use therein | Human Necessities | 189 | Expired |
| US5107175A | Moisture trapping film for EL lamps of the organic dispersion type | Emerging Cross-Sectional Technologies | 187 | Expired |
| US5042461A | Horn used in an ultrasonic surgical operating instrument | Human Necessities | 184 | Expired |
| US4587958A | Ultrasonic surgical device | Human Necessities | 151 | Expired |
| US4076846A | Protein-starch binary molding composition and shaped articles obtained therefor | Performing Operations; Transporting | 147 | Expired |
| US5092846A | Introducer for medical tube | Human Necessities | 147 | Expired |
| US5507797A | Slidable kit for endoscopic ligation | Human Necessities | 130 | Expired |
| US5234403A | Blood collecting apparatus | Human Necessities | 122 | Expired |
| US7297106B2 | Medical treating instrument | Human Necessities | 120 | Expired |
| US4982735A | Artificial ventilator | Human Necessities | 99 | Expired |
| US6290677A | Medicinal liquid injection port | Human Necessities | 87 | Expired |
| US6039896A | Anisotropic conductive adhesive and method for preparation thereof and an electronic apparatus using said adhesive | Electricity | 69 | Expired |
| US4091138A | Insulating film, sheet, or plate material with metallic coating and method for manufacturing same | Emerging Cross-Sectional Technologies | 67 | Expired |
| US4686124A | Thermoplastic resin-silicone rubber composite shaped article | Emerging Cross-Sectional Technologies | 64 | Expired |
| US4834721A | Thermoplastic resin silicone composite shaped article | Emerging Cross-Sectional Technologies | 62 | Expired |
| US6790579B1 | Photoresist compositions comprising polycyclic polymers with acid labile pendant groups | Emerging Cross-Sectional Technologies | 62 | Expired |
| US7625361B2 | Catheter kit for burrow | Human Necessities | 60 | Expired |
| US5352043A | Self-supporting bag, a method of production thereof and an apparatus for production thereof | Performing Operations; Transporting | 60 | Expired |
| US4008351A | Film or sheet material having antibacterial and antifungal activities | Emerging Cross-Sectional Technologies | 57 | Expired |
| US5078817A | Process for producing printed container for food packaging | Performing Operations; Transporting | 56 | Expired |
Source: USPTO / EPO open patent data. Counts and citation impact are objective bibliographic measures.