Brush seal comprising at least two groups of bristles
US-2020165977-A1 · May 28, 2020 · US
Shaft sealings
Shaft sealings · 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 | F04D29/10 |
| Official title | Shaft sealings |
| Display label | Shaft sealings |
| Total patents | 90 |
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 | 8 |
| 2016 | 11 |
| 2017 | 16 |
| 2018 | 9 |
| 2019 | 14 |
| 2020 | 9 |
| 2021 | 12 |
| 2022 | 6 |
| 2023 | 3 |
| 2024 | 1 |
| 2025 | 1 |
Representative patents
Representative publications under this CPC code from precomputed stats, or recent filings when stats are unavailable.
Deflection spring seal
US-10533567-B2 · Jan 14, 2020 · US
Slide component
US-10487944-B2 · Nov 26, 2019 · US
Centrifugal pump
US-2019316595-A1 · Oct 17, 2019 · US
Passive shutdown sealing device for a system of shaft seals of a reactor coolant pump set
US-10385974-B2 · Aug 20, 2019 · US
Mechanical seal
US-2019242481-A1 · Aug 8, 2019 · US
Fluid energy machine having a tandem dry gas seal
US-10337520-B2 · Jul 2, 2019 · US
Seal structure and turbocharger
US-2019178292-A1 · Jun 13, 2019 · US
Seal segment and rotary machine
US-2019162120-A1 · May 30, 2019 · US
Seal segment and rotary machine
US-2019136766-A1 · May 9, 2019 · US
Labyrinth seal
US-2019136863-A1 · May 9, 2019 · US
Turbocharger purge seal including axisymmetric supply cavity
US-10240610-B2 · Mar 26, 2019 · US
Pump seal leakage detection system
US-2019086286-A1 · Mar 21, 2019 · US
Aligning unit for industrial robot arm
US-D841713-S · Feb 26, 2019 · US
Centrifugal pump
US-2019048885-A1 · Feb 14, 2019 · US
Shaft sealing mechanism
US-10196987-B2 · Feb 5, 2019 · US
Deflection spring seal
US-2018347576-A1 · Dec 6, 2018 · US
Lip seal for water pump
US-10139003-B2 · Nov 27, 2018 · US
Mechanical seal assistance device and systems and methods for use thereof
US-10119616-B2 · Nov 6, 2018 · US
Flow diverter to redirect secondary flow
US-10094389-B2 · Oct 9, 2018 · US
Frequently asked questions
Answers are generated from the same data shown on this page.
- What is CPC F04D29/10?
- CPC F04D29/10 is the Cooperative Patent Classification code for “Shaft sealings.”
- How many patents are filed under CPC F04D29/10 (Shaft sealings)?
- Our database includes 90 publications tagged with this CPC code.
- Is patent activity under CPC F04D29/10 growing?
- Publication counts under this code: 1 in 2024 vs 1 in 2025 (latest complete years).