Liu; Chengkou
Patent Applications and Registrations
Patent applications and USPTO patent grants for Liu; Chengkou.The latest application filed is for "preparation method of flexible polyurethane foam".
- Liu; Chengkou - Nanjing CN
| Patent | Date |
|---|---|
| Polyols for preparing flexible polyurethane foam, and preparation method and application thereof Grant 11,214,584 - Guo , et al. January 4, 2 | 2022-01-04 |
| Preparation Method Of Polyurethane Foam App 20210230390 - GUO; Kai ; et al. | 2021-07-29 |
| Preparation Method Of Flexible Polyurethane Foam App 20210230350 - GUO; Kai ; et al. | 2021-07-29 |
| Polyols for preparing flexible polyurethane foam, and Preparation Method and Application Thereof App 20210087211 - GUO; Kai ; et al. | 2021-03-25 |
| Vegetable Oil Polyol for Flexible Polyurethane Foam and Preparation Method and Application Thereof App 20190119493 - GUO; Kai ; et al. | 2019-04-25 |
| Totally bio-based vegetable oil polyol and preparation method and use thereof App 20190119496 - GUO; Kai ; et al. | 2019-04-25 |
| Polyurethane Polyol, and Preparation Method and Application Thereof App 20190112475 - GUO; Kai ; et al. | 2019-04-18 |
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