Pipe transport device and pipe joining method inside pipeline construction shaft
US-12281727-B2 · Apr 22, 2025 · US
for bringing two tubular members closer to each other · Cooperative Patent Classification (CPC)
Engines, pumps, lighting, heating, and mechanical systems.
Mapped technology topics for this CPC code.
| Metric | Value |
|---|---|
| CPC code | F16L1/09 |
| Official title | for bringing two tubular members closer to each other |
| Display label | for bringing two tubular members closer to each other |
| Total patents | 22 |
Year-over-year patent counts classified under this CPC code.
Filing activity over the last five years is stable.
| Year | Patents |
|---|---|
| 2016 | 3 |
| 2017 | 1 |
| 2019 | 1 |
| 2020 | 1 |
| 2021 | 3 |
| 2022 | 6 |
| 2023 | 1 |
| 2024 | 3 |
| 2025 | 3 |
Representative publications under this CPC code from precomputed stats, or recent filings when stats are unavailable.
US-12281727-B2 · Apr 22, 2025 · US
US-12259075-B2 · Mar 25, 2025 · US
US-12215806-B2 · Feb 4, 2025 · US
US-2024418296-A1 · Dec 19, 2024 · US
US-2024255088-A1 · Aug 1, 2024 · US
US-2024255079-A1 · Aug 1, 2024 · US
US-11578475-B2 · Feb 14, 2023 · US
US-11448340-B1 · Sep 20, 2022 · US
US-11402035-B2 · Aug 2, 2022 · US
US-2022178471-A1 · Jun 9, 2022 · US
US-11242944-B1 · Feb 8, 2022 · US
US-2022025991-A1 · Jan 27, 2022 · US
US-11230907-B2 · Jan 25, 2022 · US
US-2021324612-A1 · Oct 21, 2021 · US
US-2021190236-A1 · Jun 24, 2021 · US
US-2021025264-A1 · Jan 28, 2021 · US
US-10627018-B2 · Apr 21, 2020 · US
US-10443772-B2 · Oct 15, 2019 · US
US-2017268703-A1 · Sep 21, 2017 · US
US-9476411-B2 · Oct 25, 2016 · US