Road network balanced drainage method aimed at reducing urban waterlogging
US-12247359-B2 · Mar 11, 2025 · US
Qingdao Donghuiquan Tech Co Ltd holds 2 patents in our database, with recent filings and technology areas summarized below.
| Metric | Value |
|---|---|
| Total patents | 2 |
| Recent patents | 1 |
| First publication | Jun 9, 2022 |
| Latest publication | Mar 11, 2025 |
Year-over-year patent counts for this assignee.
Latest publications where this party is an assignee.
Representative or frequently cited publications from precomputed assignee stats.
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| Technology | Patents |
|---|---|
| Fixed Constructions | 2 |