Friction weed
US-10151351-B2 · Dec 11, 2018 · US
Operations & Transport
Operations & Transport · 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 | B23K33/006 |
| Official title | — |
| Display label | Operations & Transport (mapped technology topic) |
| Total patents | 171 |
Filing trend
Year-over-year patent counts classified under this CPC code.
Filing activity over the last five years is rapidly declining.
| Year | Patents |
|---|---|
| 2015 | 16 |
| 2016 | 22 |
| 2017 | 16 |
| 2018 | 16 |
| 2019 | 21 |
| 2020 | 19 |
| 2021 | 18 |
| 2022 | 13 |
| 2023 | 12 |
| 2024 | 12 |
| 2025 | 5 |
| 2026 | 1 |
Representative patents
Representative publications under this CPC code from precomputed stats, or recent filings when stats are unavailable.
Manufacturing method for fluid coupling and fluid coupling
US-10077826-B2 · Sep 18, 2018 · US
Rotary friction welding
US-10052715-B2 · Aug 21, 2018 · US
Shaft element, method for producing a shaft element composed of two different materials, and corresponding turbomachine
US-2018073550-A1 · Mar 15, 2018 · US
Method of joining by electron beam or laser welding a turbocharger turbine wheel to a shaft; corresponding turbocharger turbine wheel
US-2018036831-A1 · Feb 8, 2018 · US
Rotary friction welding
US-2018029158-A1 · Feb 1, 2018 · US
Structure for controlling tension on a threaded header
US-2017363485-A1 · Dec 21, 2017 · US
Metal composite and metal joining method
US-2017334017-A1 · Nov 23, 2017 · US
Rotary friction welding
US-9791075-B2 · Oct 17, 2017 · US
Structure for controlling tension on a threaded header
US-9791329-B1 · Oct 17, 2017 · US
Structure for controlling tension on a threaded header
US-2017276554-A1 · Sep 28, 2017 · US
Submerged arc welding method for steel plate
US-9764410-B2 · Sep 19, 2017 · US
Heat stop for brazing or soldering
US-2017203392-A1 · Jul 20, 2017 · US
Advanced braze joint for tube-to-tube connection
US-2017198838-A1 · Jul 13, 2017 · US
Rotary friction welding
US-2017129048-A1 · May 11, 2017 · US
Repairable fuel injector
US-2017130652-A1 · May 11, 2017 · US
Method for butt welding, butt welded joint, and outside joint member for constant velocity universal joint
US-2017120369-A1 · May 4, 2017 · US
Refrigerant pipe, method of manufacturing the refrigerant pipe, and heat exchanger including the refrigerant pipe
US-2017114932-A1 · Apr 27, 2017 · US
Flash trap
US-2017095890-A1 · Apr 6, 2017 · US
Measuring tube for a flow measuring device and flow measuring device
US-9574926-B2 · Feb 21, 2017 · US
Next steps
Free tools are coming soon. Tell us what you want to track and we'll notify you.
Frequently asked questions
Answers are generated from the same data shown on this page.
- What is CPC B23K33/006?
- CPC B23K33/006 is the Cooperative Patent Classification code for “Operations & Transport.”
- How many patents are filed under CPC B23K33/006 (Operations & Transport)?
- Our database includes 171 publications tagged with this CPC code.
- Is patent activity under CPC B23K33/006 growing?
- Publication counts under this code: 12 in 2024 vs 5 in 2025 (latest complete years).