Spindle seal and powertrain system
US-12533909-B2 · Jan 27, 2026 · US
the wheels being rigidly attached to solid axles
the wheels being rigidly attached to solid axles · 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 | B60B37/04 |
| Official title | the wheels being rigidly attached to solid axles |
| Display label | the wheels being rigidly attached to solid axles |
| Total patents | 27 |
Filing trend
Year-over-year patent counts classified under this CPC code.
Filing activity over the last five years is growing.
| Year | Patents |
|---|---|
| 2015 | 4 |
| 2016 | 3 |
| 2017 | 2 |
| 2018 | 3 |
| 2020 | 1 |
| 2023 | 4 |
| 2024 | 4 |
| 2025 | 5 |
| 2026 | 1 |
Representative patents
Representative publications under this CPC code from precomputed stats, or recent filings when stats are unavailable.
Spindle seal and powertrain system
US-2025332866-A1 · Oct 30, 2025 · US
Removable wheel assembly and method
US-2025262893-A1 · Aug 21, 2025 · US
Systems and methods for disengaging wheels
US-12350965-B2 · Jul 8, 2025 · US
Railway wheel, and wheelset for railway vehicles
US-2025187368-A1 · Jun 12, 2025 · US
Axle shaft disconnect system
US-12215744-B2 · Feb 4, 2025 · US
Axle shaft disconnect system
US-2024426350-A1 · Dec 26, 2024 · US
Systems and methods for disengaging wheels
US-2024166043-A1 · May 23, 2024 · US
Driving force transmission device and rotary mechanism
US-2024077134-A1 · Mar 7, 2024 · US
Autonomous floor cleaner with drive wheel assembly
US-11903541-B2 · Feb 20, 2024 · US
Garden tool with toollessly interchangeable wheel
US-2023301234-A1 · Sep 28, 2023 · US
Composite power wheel pair, train, wheel rail system, and train control method
US-2023202234-A1 · Jun 29, 2023 · US
Autonomous floor cleaner with drive wheel assembly
US-2023121949-A1 · Apr 20, 2023 · US
Autonomous floor cleaner with drive wheel assembly
US-11559182-B2 · Jan 24, 2023 · US
Autonomous floor cleaner with drive wheel assembly
US-2020337513-A1 · Oct 29, 2020 · US
Roller device and roller shell for track-type work vehicle
US-10086889-B2 · Oct 2, 2018 · US
Wheel axle comprising at least two protection devices
US-10081375-B2 · Sep 25, 2018 · US
Spherical wheel intended for moving a vehicle and vehicle using the wheel
US-9895928-B2 · Feb 20, 2018 · US
Two-piece axle shaft
US-2017166007-A1 · Jun 15, 2017 · US
Mobile x-ray apparatus
US-2017000429-A1 · Jan 5, 2017 · US
Frequently asked questions
Answers are generated from the same data shown on this page.
- What is CPC B60B37/04?
- CPC B60B37/04 is the Cooperative Patent Classification code for “the wheels being rigidly attached to solid axles.”
- How many patents are filed under CPC B60B37/04 (the wheels being rigidly attached to solid axles)?
- Our database includes 27 publications tagged with this CPC code.
- Is patent activity under CPC B60B37/04 growing?
- Publication counts under this code: 4 in 2024 vs 5 in 2025 (latest complete years).