Wheel assembly
US-2025065670-A1 · Feb 27, 2025 · US
with inwardly directed flanges, i.e. the tyre-seat being reversed
with inwardly directed flanges, i.e. the tyre-seat being reversed · 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 | B60B21/021 |
| Official title | {with inwardly directed flanges, i.e. the tyre-seat being reversed} |
| Display label | with inwardly directed flanges, i.e. the tyre-seat being reversed |
| Total patents | 25 |
Filing trend
Year-over-year patent counts classified under this CPC code.
Filing activity over the last five years is declining.
| Year | Patents |
|---|---|
| 2015 | 1 |
| 2016 | 2 |
| 2017 | 7 |
| 2018 | 4 |
| 2019 | 4 |
| 2020 | 2 |
| 2021 | 2 |
| 2022 | 1 |
| 2023 | 1 |
| 2025 | 1 |
Representative patents
Representative publications under this CPC code from precomputed stats, or recent filings when stats are unavailable.
Bicycle rim made of composite material with wings having reinforced structure
US-11745538-B2 · Sep 5, 2023 · US
Bicycle wheel rim and relative manufacturing process
US-11267281-B2 · Mar 8, 2022 · US
Bicycle rim made of composite material with wings having reinforced structure
US-2021331518-A1 · Oct 28, 2021 · US
Reinforced bicycle rim
US-11135872-B2 · Oct 5, 2021 · US
Combined wheel
US-10828933-B2 · Nov 10, 2020 · US
Bicycle rim and wheel having inner protrusions
US-10576781-B2 · Mar 3, 2020 · US
Combined wheel
US-2019193460-A1 · Jun 27, 2019 · US
Bicycle wheel rim and relative manufacturing process
US-2019168538-A1 · Jun 6, 2019 · US
Bicycle rim
US-10293635-B2 · May 21, 2019 · US
Reinforced bicycle rim
US-2019077191-A1 · Mar 14, 2019 · US
Reinforced bicycle rim
US-10137729-B2 · Nov 27, 2018 · US
Bicycle rim and wheel having inner protrusions
US-2018201059-A1 · Jul 19, 2018 · US
Reinforced bicycle rim
US-2018111416-A1 · Apr 26, 2018 · US
Bicycle rim and wheel having inner protrusions
US-9950561-B2 · Apr 24, 2018 · US
Reinforced bicycle rim
US-9844978-B2 · Dec 19, 2017 · US
Reinforced bicycle rim
US-9840111-B2 · Dec 12, 2017 · US
Bicycle rim and wheel having inner protrusions
US-2017232790-A1 · Aug 17, 2017 · US
Bicycle rim
US-2017225510-A1 · Aug 10, 2017 · US
Bicycle rim
US-9656516-B2 · May 23, 2017 · US
Frequently asked questions
Answers are generated from the same data shown on this page.
- What is CPC B60B21/021?
- CPC B60B21/021 is the Cooperative Patent Classification code for “with inwardly directed flanges, i.e. the tyre-seat being reversed.”
- How many patents are filed under CPC B60B21/021 (with inwardly directed flanges, i.e. the tyre-seat being reversed)?
- Our database includes 25 publications tagged with this CPC code.
- Is patent activity under CPC B60B21/021 growing?
- Publication counts under this code: 1 in 2023 vs 1 in 2025 (latest complete years).