Pretreatment process of resin catalyst for synthesizing bisphenol A
US-12397287-B1 · Aug 26, 2025 · US
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Dong He patents
Dong He is listed as an inventor on 13 patents in our database. Major assignees and classification codes are summarized below.
| Metric | Value |
|---|---|
| Inventor | Dong He |
| Total patents | 13 |
| First publication | Oct 5, 2023 |
| Latest publication | Aug 26, 2025 |
Notable patents
Publications ranked by popularity score, then publication date.
Bisphenol a preparation process and device thereof
US-12371395-B2 · Jul 29, 2025 · US
Process for reducing by-products in bisphenol A reaction system
US-12344575-B1 · Jul 1, 2025 · US
Bisphenol a preparation process and device thereof
US-2025197330-A1 · Jun 19, 2025 · US
Production process and device for synthesizing bisphenol a by resin method
US-2025122138-A1 · Apr 17, 2025 · US
Thermal coupling method for preparing ethylene by ethanol dehydration and device thereof
US-12071387-B2 · Aug 27, 2024 · US
Preparation method of vinyl acetate by ethylene process and device thereof
US-12049442-B2 · Jul 30, 2024 · US
Preparation method of vinyl acetate by ethylene process and device thereof
US-2024158333-A1 · May 16, 2024 · US
Method for producing vinyl acetate
US-11939286-B2 · Mar 26, 2024 · US
Thermal coupling method for preparing ethylene by ethanol dehydration and device thereof
US-2024067583-A1 · Feb 29, 2024 · US
Recent patents
Latest publications not already listed above.
Preparation system of ethylene by ethanol dehydration and device thereof
US-2023405543-A1 · Dec 21, 2023 · US
Method for producing vinyl acetate
US-2023312452-A1 · Oct 5, 2023 · US
Vinyl acetate production process and device
US-2023312456-A1 · Oct 5, 2023 · US
Major assignees
Companies most often associated with this inventor's publications.
| Assignee | Patents |
|---|---|
| Univ Tianjin | 13 |
Top CPC classifications
Most common classification codes across this inventor's patents.
| CPC | Patents |
|---|---|
| C07C67/05 | 5 |
| C07C37/20 | 5 |
| C07C7/12 | 4 |
| B01J19/0013 | 4 |
| Y02P20/10 | 4 |