Method for qualitative identification and quantitative determination of caffeine in drug
US-12352693-B2 · Jul 8, 2025 · US
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Shi Chenjun patents
Shi Chenjun is listed as an inventor on 6 patents in our database. Major assignees and classification codes are summarized below.
| Metric | Value |
|---|---|
| Inventor | Shi Chenjun |
| Total patents | 6 |
| First publication | Oct 24, 2019 |
| Latest publication | Jul 8, 2025 |
Notable patents
Publications ranked by popularity score, then publication date.
Method for qualitative and quantitative determination of key substances in mixture based on terahertz spectrum
US-11353396-B2 · Jun 7, 2022 · US
Method for qualitative identification and quantitative determination of caffeine in drug
US-2021381963-A1 · Dec 9, 2021 · US
Method for detecting notoginseng using terahertz technology
US-10837900-B2 · Nov 17, 2020 · US
Method for qualitative and quantitative determination of key substances in mixture based on terahertz spectrum
US-2020217790-A1 · Jul 9, 2020 · US
Method for detecting notoginseng using terahertz technology
US-2019323956-A1 · Oct 24, 2019 · US
Recent patents
Latest publications not already listed above.
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Major assignees
Companies most often associated with this inventor's publications.
| Assignee | Patents |
|---|---|
| Univ Of Shanghai For Science And Technology | 6 |
| Chongqing Inst For Food And Drug Control | 2 |
Top CPC classifications
Most common classification codes across this inventor's patents.
| CPC | Patents |
|---|---|
| G01N21/3586 | 4 |
| G01N21/01 | 2 |
| G01N2021/3572 | 2 |
| G01N21/3563 | 2 |
| G06N20/10 | 2 |