Piston sealing ring assembly having a gap cover element
US-2021388901-A1 · Dec 16, 2021 · US
with radially or tangentially compressed packing
with radially or tangentially compressed packing · 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 | F16J15/24 |
| Official title | with radially or tangentially compressed packing |
| Display label | with radially or tangentially compressed packing |
| Total patents | 85 |
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 | 11 |
| 2016 | 10 |
| 2017 | 7 |
| 2018 | 10 |
| 2019 | 4 |
| 2020 | 8 |
| 2021 | 11 |
| 2022 | 7 |
| 2023 | 5 |
| 2024 | 6 |
| 2025 | 3 |
| 2026 | 3 |
Representative patents
Representative publications under this CPC code from precomputed stats, or recent filings when stats are unavailable.
Two-piece seat for contacting seal
US-11199263-B2 · Dec 14, 2021 · US
Gland packing and packing structure
US-2021348686-A1 · Nov 11, 2021 · US
Seal ring assembly for a dynamoelectric machine
US-11162591-B2 · Nov 2, 2021 · US
Metallic ring for sealing a downhole rotary steering piston
US-11136829-B2 · Oct 5, 2021 · US
Seal device
US-11085539-B2 · Aug 10, 2021 · US
Hydraulic assembly
US-2021231136-A1 · Jul 29, 2021 · US
Connecting device comprising a bolted clevis and a deformable ring in the clevis
US-2021163115-A1 · Jun 3, 2021 · US
Dynamic packing seal compression system for pumps
US-11002120-B1 · May 11, 2021 · US
Piston sealing ring assembly having a gap cover element
US-10975966-B2 · Apr 13, 2021 · US
Two-piece seat for contacting seal
US-2020300365-A1 · Sep 24, 2020 · US
Internally cooled seal runner and method of cooling seal runner of a gas turbine engine
US-10753219-B2 · Aug 25, 2020 · US
Metallic ring for sealing a downhole rotary steering piston
US-2020263501-A1 · Aug 20, 2020 · US
Seal structure and supercharger provided with the seal structure
US-10690141-B2 · Jun 23, 2020 · US
Clearance-control-type seal structure
US-10619505-B2 · Apr 14, 2020 · US
Pistons
US-10598282-B2 · Mar 24, 2020 · US
Seal device
US-2020063871-A1 · Feb 27, 2020 · US
Sealing material composition and gland packing containing the sealing material composition
US-10533268-B2 · Jan 14, 2020 · US
Seal structure, and device with said seal structure
US-2019376617-A1 · Dec 12, 2019 · US
Sealing device
US-10359114-B2 · Jul 23, 2019 · US
Frequently asked questions
Answers are generated from the same data shown on this page.
- What is CPC F16J15/24?
- CPC F16J15/24 is the Cooperative Patent Classification code for “with radially or tangentially compressed packing.”
- How many patents are filed under CPC F16J15/24 (with radially or tangentially compressed packing)?
- Our database includes 85 publications tagged with this CPC code.
- Is patent activity under CPC F16J15/24 growing?
- Publication counts under this code: 6 in 2024 vs 3 in 2025 (latest complete years).