High pressure pump
US-11846282-B2 · Dec 19, 2023 · US
with stuffing-boxes for rigid sealing rings
with stuffing-boxes for rigid sealing rings · 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 | F16J15/26 |
| Official title | with stuffing-boxes for rigid sealing rings |
| Display label | with stuffing-boxes for rigid sealing rings |
| Total patents | 98 |
Filing trend
Year-over-year patent counts classified under this CPC code.
Filing activity over the last five years is stable.
| Year | Patents |
|---|---|
| 2015 | 3 |
| 2016 | 5 |
| 2017 | 3 |
| 2018 | 4 |
| 2019 | 3 |
| 2020 | 15 |
| 2021 | 13 |
| 2022 | 10 |
| 2023 | 10 |
| 2024 | 14 |
| 2025 | 14 |
| 2026 | 4 |
Representative patents
Representative publications under this CPC code from precomputed stats, or recent filings when stats are unavailable.
Screw Conveyor Shaft Seal and Related Methods
US-2023174313-A1 · Jun 8, 2023 · US
Seal system
US-11584075-B2 · Feb 21, 2023 · US
Fluid end
US-11560884-B2 · Jan 24, 2023 · US
Radial seal segment joint
US-11525515-B2 · Dec 13, 2022 · US
Ceramic matrix composite-based seal
US-11519282-B2 · Dec 6, 2022 · US
Seal chain
US-11499605-B2 · Nov 15, 2022 · US
Hydraulic fluid pump and stuffing box assembly for same
US-11441683-B2 · Sep 13, 2022 · US
Valve assemblies, valve packing assemblies and related systems and methods
US-11434999-B2 · Sep 6, 2022 · US
Seal system
US-2022193998-A1 · Jun 23, 2022 · US
Seal ring
US-11333250-B2 · May 17, 2022 · US
Seal ring
US-11320051-B2 · May 3, 2022 · US
Circumferential archbound carbon seal on ceramic runner
US-11255436-B2 · Feb 22, 2022 · US
Sealing device
US-11255437-B2 · Feb 22, 2022 · US
Radial seal arrangement
US-2021355836-A1 · Nov 18, 2021 · US
Seal ring assembly for a dynamoelectric machine
US-11162591-B2 · Nov 2, 2021 · US
Zero-flow fire-resistant thread-lock quick disconnect coupling
US-11137100-B2 · Oct 5, 2021 · US
Seal chain
US-2021285516-A1 · Sep 16, 2021 · US
Stuffing box for use with reciprocal moveable piston rods and method of manufacturing
US-2021277997-A1 · Sep 9, 2021 · US
Radial seal segment joint
US-2021246987-A1 · Aug 12, 2021 · US
Frequently asked questions
Answers are generated from the same data shown on this page.
- What is CPC F16J15/26?
- CPC F16J15/26 is the Cooperative Patent Classification code for “with stuffing-boxes for rigid sealing rings.”
- How many patents are filed under CPC F16J15/26 (with stuffing-boxes for rigid sealing rings)?
- Our database includes 98 publications tagged with this CPC code.
- Is patent activity under CPC F16J15/26 growing?
- Publication counts under this code: 14 in 2024 vs 14 in 2025 (latest complete years).