As-rolled type k55 electric resistance welded oil well pipe and hot-rolled steel sheet
US-2018298475-A1 · Oct 18, 2018 · US
Making tubes with welded or soldered seams {(with helically arranged seams B21C37/122)}
Making tubes with welded or soldered seams {(with helically arranged seams B21C37/122)} · Cooperative Patent Classification (CPC)
Separating, mixing, shaping, printing, and transporting materials.
Related technology areas
Mapped technology topics for this CPC code.
| Metric | Value |
|---|---|
| CPC code | B21C37/08 |
| Official title | Making tubes with welded or soldered seams {(with helically arranged seams B21C37/122)} |
| Display label | Making tubes with welded or soldered seams {(with helically arranged seams B21C37/122)} |
| Total patents | 208 |
Filing trend
Year-over-year patent counts classified under this CPC code.
Filing activity over the last five years is declining.
| Year | Patents |
|---|---|
| 2015 | 20 |
| 2016 | 13 |
| 2017 | 17 |
| 2018 | 19 |
| 2019 | 25 |
| 2020 | 23 |
| 2021 | 20 |
| 2022 | 20 |
| 2023 | 17 |
| 2024 | 16 |
| 2025 | 13 |
| 2026 | 5 |
Representative patents
Representative publications under this CPC code from precomputed stats, or recent filings when stats are unavailable.
Operating machine boom
US-2018297825-A1 · Oct 18, 2018 · US
Electric resistance welded steel pipe excellent in weld zone and method of production of same
US-10081042-B2 · Sep 25, 2018 · US
Multiply-wound Tube, Method of Manufacturing Multiply-wound Tube, and Device for Manufacturing Multiply-Wound Tube
US-2018231334-A1 · Aug 16, 2018 · US
Method of monitoring manufacturing status of electric resistance welded pipe, device for monitoring manufacturing status of electric resistance welded pipe, and method of manufacturing electric resistance welded pipe
US-2018104763-A1 · Apr 19, 2018 · US
Electric resistance welded steel pipe having identifiable seam portion and method for manufacturing the same
US-2018036830-A1 · Feb 8, 2018 · US
High-strength electric resistance welded steel pipe and method for producing the same
US-2018030557-A1 · Feb 1, 2018 · US
High-strength welded steel pipe for airbag inflator and method for manufacturing the same (as amended)
US-2018023163-A1 · Jan 25, 2018 · US
Electric resistance welded steel pipe or steel tube having excellent HIC resistance and low-temperature toughness in electric resistance welded part, and method for manufacturing the same
US-9873164-B2 · Jan 23, 2018 · US
Method for electric resistance welded steel tube
US-9862014-B2 · Jan 9, 2018 · US
High strength thick-walled elecric-resistance-welded steel pipe for deep-well conductor casing, method for manufacturing the same, and high strength thick-walled conductor casing for deep wells
US-2017369962-A1 · Dec 28, 2017 · US
High strength thick-walled electric-resistance-welded steel pipe for deep-well conductor casing, method for manufacturing the same, and high-strength thick-walled conductor casing for deep wells
US-2017362678-A1 · Dec 21, 2017 · US
Electric resistance welded steel pipe and manufacturing method therefor
US-2017356071-A1 · Dec 14, 2017 · US
High-strength thick-walled electric resistance welded steel pipe having excellent low-temperature toughness and method of manufacturing the same
US-9841124-B2 · Dec 12, 2017 · US
Method for producing a tube from metal
US-2017312854-A1 · Nov 2, 2017 · US
Steel strip for electric-resistance-welded steel pipe or tube, electric-resistance-welded steel pipe or tube, and process for producing steel strip for electric-resistance-welded steel pipe or tube
US-2017307111-A1 · Oct 26, 2017 · US
Electric resistance welded steel pipe excellent in deformability and fatigue properties after quenching
US-9757780-B2 · Sep 12, 2017 · US
Method of manufacturing press-formed product, and press-formed product
US-2017232492-A1 · Aug 17, 2017 · US
Tube hydroforming of jointless USB stainless steel shell
US-9692199-B2 · Jun 27, 2017 · US
Welded steel pipe joined with high-energy-density beam and method for producing the same
US-9677692-B2 · Jun 13, 2017 · US
Frequently asked questions
Answers are generated from the same data shown on this page.
- What is CPC B21C37/08?
- CPC B21C37/08 is the Cooperative Patent Classification code for “Making tubes with welded or soldered seams {(with helically arranged seams B21C37/122)}.”
- How many patents are filed under CPC B21C37/08 (Making tubes with welded or soldered seams {(with helically arranged seams B21C37/122)})?
- Our database includes 208 publications tagged with this CPC code.
- Is patent activity under CPC B21C37/08 growing?
- Publication counts under this code: 16 in 2024 vs 13 in 2025 (latest complete years).