Chang; Biau-Hung
Patent Applications and Registrations
Patent applications and USPTO patent grants for Chang; Biau-Hung.The latest application filed is for "copolyester polyols, prepolymers, and polyurethane elastomers formed therefrom and processes for making same".
- Chang; Biau-Hung - Basking Ridge NJ US
- Chang; Biau-Hung - West Chester OH
- Chang; Biau-Hung - Worthington OH
| Patent | Date |
|---|---|
| Copolyester polyols, prepolymers, and polyurethane elastomers formed therefrom and processes for making same Grant 8,592,530 - Chang November 26, 2 | 2013-11-26 |
| Copolyester polyols, prepolymers, and polyurethane elastomers formed therefrom and processes for making same App 20110046338 - Chang; Biau-Hung | 2011-02-24 |
| Sizing composition Grant 6,465,559 - Bechara , et al. October 15, 2 | 2002-10-15 |
| Process for converting polyketones to poly(keto-esters) Grant 5,140,080 - Chang August 18, 1 | 1992-08-18 |
| Process for converting polyketones to polyesters Grant 4,929,711 - Chang , et al. May 29, 1 | 1990-05-29 |
| Method of reactivating Group VIII anionic hydroformylation catalysts Grant 4,547,595 - Chang October 15, 1 | 1985-10-15 |
| Use of mixed metal catalysts in the hydroformylation of olefins to produce linear aldehydes and alcohols Grant 4,539,306 - Chang September 3, 1 | 1985-09-03 |
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