Apparatus, systems, and methods for a reinforced seal element for joints on a drilling tool
US-2021404257-A1 · Dec 30, 2021 · US
Non-metallic bellows
Non-metallic bellows · Cooperative Patent Classification (CPC)
Engines, pumps, lighting, heating, and mechanical systems.
Related technology areas
Mapped technology topics for this CPC code.
| Metric | Value |
|---|---|
| CPC code | F16J3/041 |
| Official title | {Non-metallic bellows} |
| Display label | Non-metallic bellows |
| Total patents | 104 |
Filing trend
Year-over-year patent counts classified under this CPC code.
Filing activity over the last five years is declining.
| Year | Patents |
|---|---|
| 2015 | 6 |
| 2016 | 10 |
| 2017 | 9 |
| 2018 | 7 |
| 2019 | 9 |
| 2020 | 12 |
| 2021 | 12 |
| 2022 | 10 |
| 2023 | 11 |
| 2024 | 7 |
| 2025 | 8 |
| 2026 | 3 |
Representative patents
Representative publications under this CPC code from precomputed stats, or recent filings when stats are unavailable.
Bellows
US-11125330-B2 · Sep 21, 2021 · US
Air Spring Gaiters With Floating Ring
US-2021140506-A1 · May 13, 2021 · US
Sealing device
US-2021131567-A1 · May 6, 2021 · US
Sealing device
US-2021126442-A1 · Apr 29, 2021 · US
Drive shaft axle seal for performance testing of transmissions
US-10975968-B2 · Apr 13, 2021 · US
Cushion for irregular cable shapes
US-2021010595-A1 · Jan 14, 2021 · US
Energy absorbing constant velocity joint boot assembly
US-2020400197-A1 · Dec 24, 2020 · US
Bellows
US-10830352-B2 · Nov 10, 2020 · US
Bellows assembly and bellows for vehicles
US-10808785-B2 · Oct 20, 2020 · US
Steering shaft
US-2020307673-A1 · Oct 1, 2020 · US
Energy absorbing constant velocity joint boot assembly
US-10788079-B2 · Sep 29, 2020 · US
Epichlorohydrin rubber composition, crosslinked epichlorohydrin rubber object, and diaphragm and bladder for accumulator
US-2020247990-A1 · Aug 6, 2020 · US
Bellows
US-2020232559-A1 · Jul 23, 2020 · US
Drive shaft axle seal for performance testing of transmissions
US-2020158243-A1 · May 21, 2020 · US
Steering assembly with dual wall boot
US-10578213-B2 · Mar 3, 2020 · US
Dust boot with grease relief
US-10563692-B1 · Feb 18, 2020 · US
Electric actuator
US-2020049241-A1 · Feb 13, 2020 · US
Constant velocity universal joint
US-10550894-B2 · Feb 4, 2020 · US
Dust cover
US-10502257-B2 · Dec 10, 2019 · US
Frequently asked questions
Answers are generated from the same data shown on this page.
- What is CPC F16J3/041?
- CPC F16J3/041 is the Cooperative Patent Classification code for “Non-metallic bellows.”
- How many patents are filed under CPC F16J3/041 (Non-metallic bellows)?
- Our database includes 104 publications tagged with this CPC code.
- Is patent activity under CPC F16J3/041 growing?
- Publication counts under this code: 7 in 2024 vs 8 in 2025 (latest complete years).