SUN-TECH LIMITED
26Patents
0Active
26Granted
33Portfolio score
Filing activity: Nov 18, 1980 → Apr 11, 1984
Most-cited patents
| Patent | Title | Area | Cited by | Status |
|---|---|---|---|---|
| US4509821A | Filling material for electric cable | Physics | 82 | Expired |
| US4366169A | Use of perfluorocarbons as wound treatment | Emerging Cross-Sectional Technologies | 59 | Expired |
| US4520109A | Fluorocarbon tracers and tracing method | Emerging Cross-Sectional Technologies | 30 | Expired |
| US4342641A | Maximizing jet fuel from shale oil | Chemistry; Metallurgy | 20 | Expired |
| US4405496A | Hydroformylation catalyst and process of using it | Performing Operations; Transporting | 20 | Expired |
| US4461717A | Stable gas-carrying compositions | Human Necessities | 17 | Expired |
| US4485246A | Amine promoted catalytic hydrogenation of carboxylic acid anhydrides to lactones or esters | Chemistry; Metallurgy | 7 | Expired |
| US4402984A | Preparation of 1-hydropentadecafluoroadamantane and perfluoroadamantane | Chemistry; Metallurgy | 7 | Expired |
| US4542119A | Hydroformylation catalyst and process | Performing Operations; Transporting | 7 | Expired |
| US4522757A | Process for oxidizing a phenol to a p-benzoquinone | Chemistry; Metallurgy | 6 | Expired |
| US4485245A | Hydrogenation of carboxylic acid anhydrides to lactones or esters using a ruthenium trichlorostannate catalyst | Chemistry; Metallurgy | 6 | Expired |
| US4469491A | Separation of diisopropylether from hydrocarbon streams | Performing Operations; Transporting | 5 | Expired |
| US4456540A | Process of sulfurizing triglyceride and an olefin | Chemistry; Metallurgy | 5 | Expired |
| US4528278A | Catalyst for hydroformylation of olefins | Performing Operations; Transporting | 4 | Expired |
| US4519948A | Process for oxidizing a phenol to a p-benzoquinone | Performing Operations; Transporting | 4 | Expired |
| US4478752A | Process for oxidizing phenol to p-benzoquinone | Emerging Cross-Sectional Technologies | 3 | Expired |
| US4542120A | Hydroformylation catalyst and process | Performing Operations; Transporting | 3 | Expired |
| US4458047A | Process for making naphthalene hydrodimer mixtures, product mixtures made thereby and their use as a plasticizer | Chemistry; Metallurgy | 3 | Expired |
| US4482756A | Production of hydroquinones | Chemistry; Metallurgy | 2 | Expired |
| US4524142A | Platinum (O) complex-based hydroformylation catalyst | Performing Operations; Transporting | 2 | Expired |
| US4424380A | Hydroformylation catalyst and process of using it | Performing Operations; Transporting | 2 | Expired |
| US4442036A | Process for oxidizing phenol to benzoquinone | Chemistry; Metallurgy | 2 | Expired |
| US4332963A | Selective production of phenylene diacetate | Chemistry; Metallurgy | 2 | Expired |
| US4487973A | Hydroformylation process with platinum (O) catalyst | Chemistry; Metallurgy | 1 | Expired |
| US4444938A | Phenyltetralylbutane as vinyl plasticizer | Chemistry; Metallurgy | 1 | Expired |
Source: USPTO / EPO open patent data. Counts and citation impact are objective bibliographic measures.