Annular sealing assembly
US-10876634-B2 · Dec 29, 2020 · US
Sealing means, e.g. for shafts or housings (for pistons F04B1/0408 {; Stoffing boxes F04B53/164})
Sealing means, e.g. for shafts or housings (for pistons F04B1/0408 {; Stoffing boxes F04B53/164}) · 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 | F04B1/0448 |
| Official title | Sealing means, e.g. for shafts or housings (for pistons F04B1/0408 {; Stoffing boxes F04B53/164}) |
| Display label | Sealing means, e.g. for shafts or housings (for pistons F04B1/0408 {; Stoffing boxes F04B53/164}) |
| Total patents | 117 |
Filing trend
Year-over-year patent counts classified under this CPC code.
Filing activity over the last five years is rapidly growing.
| Year | Patents |
|---|---|
| 2015 | 6 |
| 2016 | 10 |
| 2017 | 8 |
| 2018 | 10 |
| 2019 | 14 |
| 2020 | 17 |
| 2021 | 3 |
| 2022 | 12 |
| 2023 | 11 |
| 2024 | 10 |
| 2025 | 15 |
| 2026 | 1 |
Representative patents
Representative publications under this CPC code from precomputed stats, or recent filings when stats are unavailable.
Novel Suction Bore Cover and Seal Arrangement
US-2020400130-A1 · Dec 24, 2020 · US
Seal
US-2020393045-A1 · Dec 17, 2020 · US
Pump for supplying high-pressure fuel
US-10851767-B2 · Dec 1, 2020 · US
Pump Fluid End With Positional Indifference For Maintenance
US-2020362971-A1 · Nov 19, 2020 · US
Flexible Manifold for Reciprocating Pump
US-2020362855-A1 · Nov 19, 2020 · US
Annular Sealing Assembly
US-2020332900-A1 · Oct 22, 2020 · US
Fluid pump having a piston and a supporting body bearing the piston for sealing
US-2020263684-A1 · Aug 20, 2020 · US
Hydraulic machine
US-10711780-B2 · Jul 14, 2020 · US
Piston Pump
US-2020191129-A1 · Jun 18, 2020 · US
High-pressure fuel pump
US-10662940-B2 · May 26, 2020 · US
High-pressure fuel supply pump, manufacturing method thereof, and method of bonding two members
US-10590897-B2 · Mar 17, 2020 · US
Seal assembly
US-2019390771-A1 · Dec 26, 2019 · US
Fluid End Plug With Bore Clearance
US-2019360483-A1 · Nov 28, 2019 · US
High pressure pump with pump spring sealing sleeve
US-10473076-B2 · Nov 12, 2019 · US
Fluid pump leakage diversion
US-10465678-B2 · Nov 5, 2019 · US
Piston fuel pump for an internal combustion engine
US-10400727-B2 · Sep 3, 2019 · US
Piston fuel pump for an internal combustion engine
US-10393112-B2 · Aug 27, 2019 · US
Fuel pump apparatus
US-10323615-B2 · Jun 18, 2019 · US
Seal assemblies for reciprocating and rotary applications
US-10302102-B2 · May 28, 2019 · US
Frequently asked questions
Answers are generated from the same data shown on this page.
- What is CPC F04B1/0448?
- CPC F04B1/0448 is the Cooperative Patent Classification code for “Sealing means, e.g. for shafts or housings (for pistons F04B1/0408 {; Stoffing boxes F04B53/164}).”
- How many patents are filed under CPC F04B1/0448 (Sealing means, e.g. for shafts or housings (for pistons F04B1/0408 {; Stoffing boxes F04B53/164}))?
- Our database includes 117 publications tagged with this CPC code.
- Is patent activity under CPC F04B1/0448 growing?
- Publication counts under this code: 10 in 2024 vs 15 in 2025 (latest complete years).