Chung-Ji Tschang
18Patents
8h-index
31Co-inventors
72Inventor score
Filing activity: Jul 12, 1979 → May 20, 1999
Most-cited inventions
| Patent | Title | Area | Cited by | Status |
|---|---|---|---|---|
| US6271320A | Method for the production of a polymer dispersion by radical aqueous emulsion polymerization with a continuously produced aqueous monomer emulsion | Chemistry; Metallurgy | 324 | Expired |
| US4266030A | Macroporous polymeric carrier for covalently binding proteins, its preparation and its use for fixing active proteins | Chemistry; Metallurgy | 52 | Expired |
| US5994457A | Preparation of an aqueous polymer dispersion | Chemistry; Metallurgy | 33 | Expired |
| US4551482A | Macroporous, hydrophilic enzyme carrier | Chemistry; Metallurgy | 26 | Expired |
| US4461832A | Preparation of an enzymatically active formulation embedded in silica gel | Emerging Cross-Sectional Technologies | 19 | Expired |
| US4658002A | Preparation of insoluble polymer powders which are only slightly swellable | Chemistry; Metallurgy | 16 | Expired |
| US4235973A | Macroporous polymeric carrier for covalently binding proteins, its preparation and its use for fixing active proteins | Chemistry; Metallurgy | 9 | Expired |
| US5141662A | Heat transfer fluids comprising oxyalkylenated polyols | Chemistry; Metallurgy | 8 | Expired |
| US4647637A | Preparation of insoluble polymer powders which are only slightly swellable | Chemistry; Metallurgy | 5 | Expired |
| US4940609A | Polymeric conditioner for pretreating nonmetallic surfaces for chemical metallization | Electricity | 5 | Expired |
| US4767707A | Immobilization of enzymes with a water-soluble glycidyl ether | Chemistry; Metallurgy | 3 | Expired |
| US4837330A | Preparation of sulfatobetaines | Chemistry; Metallurgy | 2 | Expired |
| US5421990A | Production of shining shaped articles coated with zinc or a zinc alloy | Chemistry; Metallurgy | 2 | Expired |
| US5445727A | Production of nickelized shaped articles | Chemistry; Metallurgy | 2 | Expired |
| US4855423A | Preparation of sulfatobetaines | Chemistry; Metallurgy | 1 | Expired |
| US4997680A | Polymeric conditioner for pretreating nonmetallic surfaces for chemical metallization | Electricity | 1 | Expired |
| US4954369A | Chemical deposition of copper from alkaline aqueous baths | Electricity | 1 | Expired |
| US5853900A | Alkenylnitrile-containing binders for paper coating slips | Emerging Cross-Sectional Technologies | 0 | Expired |
Source: USPTO / EPO open patent data. Inventor disambiguation is heuristic; counts are objective bibliographic measures.