Method of treating tunnel collapse using pavilion support
US-11306588-B2 · Apr 19, 2022 · US
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Hebei Feipu Environmental Protection Tech Co Ltd patents
Hebei Feipu Environmental Protection Tech Co Ltd holds 4 patents in our database, with recent filings and technology areas summarized below.
| Metric | Value |
|---|---|
| Total patents | 4 |
| Recent patents | 0 |
| First publication | Nov 18, 2021 |
| Latest publication | Apr 19, 2022 |
Filing trend
Year-over-year patent counts for this assignee.
Recent patents
Latest publications where this party is an assignee.
Method of treating tunnel collapse with roof-contacted shield support
US-11248464-B2 · Feb 15, 2022 · US
Method of treating tunnel collapse using pavilion support
US-2021388724-A1 · Dec 16, 2021 · US
Method of treating tunnel collapse with roof-contacted shield support
US-2021355828-A1 · Nov 18, 2021 · US
Notable patents
Representative or frequently cited publications from precomputed assignee stats.
Method of treating tunnel collapse using pavilion support
US-11306588-B2 · Apr 19, 2022 · US
Method of treating tunnel collapse with roof-contacted shield support
US-11248464-B2 · Feb 15, 2022 · US
Method of treating tunnel collapse using pavilion support
US-2021388724-A1 · Dec 16, 2021 · US
Method of treating tunnel collapse with roof-contacted shield support
US-2021355828-A1 · Nov 18, 2021 · US
Technology areas
Mapped technology topics for this assignee.
| Technology | Patents |
|---|---|
| Fixed Constructions | 4 |