Method for preparing (s)-1,2,3,4-tetrahydroisoquinoline-1 carboxylic acid and derivatives thereof
US-12480148-B2 · Nov 25, 2025 · US
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Tongli Biomedical Co Ltd patents
Tongli Biomedical Co Ltd holds 3 patents in our database, with recent filings and technology areas summarized below.
| Metric | Value |
|---|---|
| Total patents | 3 |
| Recent patents | 1 |
| First publication | Jul 21, 2022 |
| Latest publication | Nov 25, 2025 |
Filing trend
Year-over-year patent counts for this assignee.
Recent patents
Latest publications where this party is an assignee.
Notable patents
Representative or frequently cited publications from precomputed assignee stats.
Method for preparing (s)-1,2,3,4-tetrahydroisoquinoline-1 carboxylic acid and derivatives thereof
US-12480148-B2 · Nov 25, 2025 · US
Method For Preparing (S)-1,2,3,4-Tetrahydroisoquinoline-1 Carboxylic Acid and Derivatives Thereof
US-2023107679-A1 · Apr 6, 2023 · US
Preparation method for (r)-1,2,3,4-tetrahydroisoquinoline-1-carboxylic acid, derivatives thereof and levo-praziquantel
US-2022227766-A1 · Jul 21, 2022 · US
Technology areas
Mapped technology topics for this assignee.
| Technology | Patents |
|---|---|
| Chemistry & Metallurgy | 3 |