Drainage device
US-2021317647-A1 · Oct 14, 2021 · US
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Zhang Jin patents
Zhang Jin holds 2 patents in our database, with recent filings and technology areas summarized below.
| Metric | Value |
|---|---|
| Total patents | 2 |
| Recent patents | 0 |
| First publication | Apr 12, 2016 |
| Latest publication | Oct 14, 2021 |
Filing trend
Year-over-year patent counts for this assignee.
Recent patents
Latest publications where this party is an assignee.
Charging count method and device
US-9313035-B2 · Apr 12, 2016 · US
Notable patents
Representative or frequently cited publications from precomputed assignee stats.
Drainage device
US-2021317647-A1 · Oct 14, 2021 · US
Charging count method and device
US-9313035-B2 · Apr 12, 2016 · US
Top CPC classifications
Most common classification codes in this portfolio.
| CPC | Patents |
|---|---|
| E03C1/264 | 1 |
| E03C1/22 | 1 |
| H04L12/1407 | 1 |
| H04L12/1403 | 1 |
| H04M15/00 | 1 |
Technology areas
Mapped technology topics for this assignee.
| Technology | Patents |
|---|---|
| Fixed Constructions | 1 |
| Electricity | 1 |