Method for preparing collagen aggregate and collagen from chromium-containing tanned leather wastes by combined acid-enzyme controlled degradation technology
US-10919952-B2 · Feb 16, 2021 · US
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Han Qingxin patents
Han Qingxin holds 2 patents in our database, with recent filings and technology areas summarized below.
| Metric | Value |
|---|---|
| Total patents | 2 |
| Recent patents | 0 |
| First publication | Oct 10, 2019 |
| Latest publication | Feb 16, 2021 |
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 collagen aggregate and collagen from chromium-containing tanned leather wastes by combined acid-enzyme controlled degradation technology
US-10919952-B2 · Feb 16, 2021 · US
Method for preparing collagen aggregate and collagen from chromium-containing tanned leather wastes by combined acid-enzyme controlled degradation technology
US-2019309051-A1 · Oct 10, 2019 · US
Technology areas
Mapped technology topics for this assignee.
| Technology | Patents |
|---|---|
| Chemistry & Metallurgy | 2 |
| Cross-Sectional Technologies | 2 |