KURARAY CO., LTD.
1,898Patents
852Active
1,898Granted
55Portfolio score
Filing activity: Jan 12, 1967 → Jul 25, 2023 · 195 expiring within 5 years
Most-cited patents
| Patent | Title | Area | Cited by | Status |
|---|---|---|---|---|
| US4402319A | Releasable balloon catheter | Human Necessities | 248 | Expired |
| US4737153A | Reinforced therapeutic tube | Human Necessities | 218 | Expired |
| US4736748A | Blood component monitoring system | Physics | 206 | Expired |
| US4346712A | Releasable balloon catheter | Human Necessities | 205 | Expired |
| US4568444A | Chemical substance measuring apparatus | Physics | 149 | Expired |
| US4539382A | Adhesive composition | Chemistry; Metallurgy | 142 | Expired |
| US4301803A | Balloon catheter | Human Necessities | 137 | Expired |
| US4499251A | Adhesive compositions | Chemistry; Metallurgy | 136 | Expired |
| US6462231B1 | Method of producing carboxylic acid and alcohol | Chemistry; Metallurgy | 130 | Expired |
| US4664669A | Composite hollow fiber-type separation membranes, processes for the preparation thereof and their use | Emerging Cross-Sectional Technologies | 129 | Expired |
| US6486285B2 | Water-swellable polymer gel and process for preparing the same | Chemistry; Metallurgy | 126 | Expired |
| US4352884A | Carrier having acrylate copolymer coating for immobilization of bioactive materials | Emerging Cross-Sectional Technologies | 116 | Expired |
| US5486418A | Water-soluble heat-press-bonding polyvinyl alcohol binder fiber of a sea-islands structure | Emerging Cross-Sectional Technologies | 115 | Expired |
| US4537940A | Adhesive compositions | Chemistry; Metallurgy | 113 | Expired |
| US4259075A | Method of filling a tooth cavity | Emerging Cross-Sectional Technologies | 113 | Expired |
| US5770229A | Medical polymer gel | Human Necessities | 108 | Expired |
| US5814681A | Restorative composition for hard tissue and dispensing apparatus therefor | Human Necessities | 102 | Expired |
| US4259117A | Dental filling material | Emerging Cross-Sectional Technologies | 102 | Expired |
| US6259854A | Lightguide | Emerging Cross-Sectional Technologies | 102 | Expired |
| US6310116A | Molded polymer article having a hydrophilic surface and process for producing the same | Chemistry; Metallurgy | 100 | Expired |
| US4931344A | Fastener component | Emerging Cross-Sectional Technologies | 94 | Expired |
| US6458868B1 | Organophosphorus compounds for dental polymerizable compositions | Chemistry; Metallurgy | 90 | Expired |
| US6552123B1 | Thermoplastic polyvinyl alcohol fibers and method for producing them | Emerging Cross-Sectional Technologies | 89 | Expired |
| US4938778A | Composite hollow fiber type separation membranes processes for the preparation thereof and their use | Emerging Cross-Sectional Technologies | 85 | Expired |
| US6007712A | Waste water treatment apparatus | Emerging Cross-Sectional Technologies | 84 | Expired |
Source: USPTO / EPO open patent data. Counts and citation impact are objective bibliographic measures.