GE Plastics Japan Ltd.
35Patents
0Active
35Granted
35Portfolio score
Filing activity: Feb 27, 1989 → May 19, 1995
Most-cited patents
| Patent | Title | Area | Cited by | Status |
|---|---|---|---|---|
| US5151491A | Catalytic melt condensation preparation of polycarbonate | Chemistry; Metallurgy | 62 | Expired |
| US5097002A | Melt, catalytic process for preparing polycarbonates from carbonic acid diester | Chemistry; Metallurgy | 56 | Expired |
| US5026817A | Catalytic process for preparing polycarbonates from carbonic acid | Chemistry; Metallurgy | 48 | Expired |
| US5142018A | Process for preparing polycarbonates | Chemistry; Metallurgy | 37 | Expired |
| US5276129A | Polycarbonate containing terminal hydroxy groups, low sodium and chlorine content | Chemistry; Metallurgy | 32 | Expired |
| US5496921A | Melt process for polycarbonate with improved heat stability | Chemistry; Metallurgy | 25 | Expired |
| US5502153A | Method for preparing optical-grade polycarbonate compositions | Chemistry; Metallurgy | 25 | Expired |
| US5470938A | Copolymeric polycarbonate compositions containing a sulfonic acid compound | Chemistry; Metallurgy | 24 | Expired |
| US5310821A | Polyphenylene ether resin compositions | Emerging Cross-Sectional Technologies | 17 | Expired |
| US5371134A | Electrically conductive resin compositions | Chemistry; Metallurgy | 17 | Expired |
| US5352747A | Light-diffusing polycarbonate resin compositions containing polymethyl silsesquioxane | Chemistry; Metallurgy | 16 | Expired |
| US5418269A | Optical-grade polycarbonate resin compositions | Chemistry; Metallurgy | 13 | Expired |
| US5292789A | Polyphenylene sulfide resin composition | Chemistry; Metallurgy | 13 | Expired |
| US5104937A | Resin composition with an excellent low-temperature impact resistance which contains polyphenylene ether and polyamide | Emerging Cross-Sectional Technologies | 12 | Expired |
| US5306801A | Catalytic melt preparation of polycarbonate with subsequent addition of sulfonic acid compound | Chemistry; Metallurgy | 11 | Expired |
| US5455302A | Thermoplastic resin compositions | Chemistry; Metallurgy | 10 | Expired |
| US5109065A | Thermoplastic resin characterized by an improved heat resistance | Emerging Cross-Sectional Technologies | 9 | Expired |
| US5371170A | Polycarbonate production method | Chemistry; Metallurgy | 9 | Expired |
| US5324809A | Melt catalytic preparation of copolymeric polycarbonate from hydroquinone | Chemistry; Metallurgy | 8 | Expired |
| US5286834A | Melt preparation of copolycarbonate with alkaline compound catalyst and boric acid compound catalyst | Chemistry; Metallurgy | 8 | Expired |
| US5484875A | Copolymeric polycarbonate production method | Chemistry; Metallurgy | 8 | Expired |
| US5418315A | Copolymeric polycarbonate production method | Chemistry; Metallurgy | 7 | Expired |
| US5068286A | Copolymers from nucleophilic olefin polymers and epoxytriazine-capped polyphenylene ethers | Emerging Cross-Sectional Technologies | 7 | Expired |
| US5484874A | Polycarbonate resin compositions | Chemistry; Metallurgy | 7 | Expired |
| US5395889A | Low-gloss thermoplastic resin compositions | Chemistry; Metallurgy | 7 | Expired |
Source: USPTO / EPO open patent data. Counts and citation impact are objective bibliographic measures.