Ahn; John H.
Patent Applications and Registrations
Patent applications and USPTO patent grants for Ahn; John H..The latest application filed is for "process for catalytic hydrogenation of halonitroaromatics".
- Ahn; John H. - Town and Country MO
- Ahn; John H. - Maryland Heights MO
- Ahn; John H. - Saint Louis MO
- Ahn; John H. - Chesterfield MO
| Patent | Date |
|---|---|
| Process For Catalytic Hydrogenation Of Halonitroaromatics App 20220098141 - Ahn; John H. ; et al. | 2022-03-31 |
| Process for catalytic hydrogenation of halonitroaromatics Grant 11,225,454 - Ahn , et al. January 18, 2 | 2022-01-18 |
| Processes for preparing 2,5-dichlorophenol Grant 11,008,276 - Ahn , et al. May 18, 2 | 2021-05-18 |
| Process For Catalytic Hydrogenation Of Halonitroaromatics App 20200223784 - Ahn; John H. ; et al. | 2020-07-16 |
| Processes For Preparing 2,5-dichlorophenol App 20200216379 - Ahn; John H. ; et al. | 2020-07-09 |
| Process for catalytic hydrogenation of halonitroaromatics Grant 10,562,841 - Ahn , et al. Feb | 2020-02-18 |
| Processes for preparing 2,5-dichlorophenol Grant 10,550,063 - Wan , et al. Fe | 2020-02-04 |
| Separation of dichlorophenols Grant 10,343,965 - Wan , et al. July 9, 2 | 2019-07-09 |
| Process For Catalytic Hydrogenation Of Halonitroaromatics App 20180282258 - Ahn; John H. ; et al. | 2018-10-04 |
| Separation Of Dichlorophenols App 20180179132 - Ahn; John H. ; et al. | 2018-06-28 |
| Processes For Preparing 2,5-dichlorophenol App 20170247310 - Wan; Kam-To ; et al. | 2017-08-31 |
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