Carbon seal spring assembly
US-2017362949-A1 · Dec 21, 2017 · US
comprising at least two sealings in succession (F16J15/162, F16J15/40 take precedence)
comprising at least two sealings in succession (F16J15/162, F16J15/40 take precedence) · 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 | F16J15/002 |
| Official title | {comprising at least two sealings in succession (F16J15/162, F16J15/40 take precedence)} |
| Display label | comprising at least two sealings in succession (F16J15/162, F16J15/40 take precedence) |
| Total patents | 333 |
Filing trend
Year-over-year patent counts classified under this CPC code.
Filing activity over the last five years is stable.
| Year | Patents |
|---|---|
| 2015 | 24 |
| 2016 | 29 |
| 2017 | 30 |
| 2018 | 31 |
| 2019 | 36 |
| 2020 | 38 |
| 2021 | 31 |
| 2022 | 34 |
| 2023 | 24 |
| 2024 | 27 |
| 2025 | 26 |
| 2026 | 3 |
Representative patents
Representative publications under this CPC code from precomputed stats, or recent filings when stats are unavailable.
Bidirectionally testable seal configuration
US-9797514-B2 · Oct 24, 2017 · US
Mechanical seal
US-2017198813-A1 · Jul 13, 2017 · US
Muffle gap seal for glass laminate machine
US-9701560-B2 · Jul 11, 2017 · US
A method of feeding a sealing medium into a liquor filter and a liquor filter
US-2017183818-A1 · Jun 29, 2017 · US
Seal structure of crawler-driving apparatus
US-2017166269-A1 · Jun 15, 2017 · US
Gasket Retention Systems and Methods
US-2017067583-A1 · Mar 9, 2017 · US
Shaft seal insert
US-9518473-B2 · Dec 13, 2016 · US
Seal ring
US-9506564-B2 · Nov 29, 2016 · US
Seal assembly for sealing a space between a housing and a component against entry of a liquid medium
US-2016341316-A1 · Nov 24, 2016 · US
Variable torque bearing
US-9488227-B2 · Nov 8, 2016 · US
Bearing roller chain
US-9482314-B2 · Nov 1, 2016 · US
Seal
US-2016312634-A1 · Oct 27, 2016 · US
Sealing device for an oil enclosure in a turbine engine bearing
US-2016305283-A1 · Oct 20, 2016 · US
Vacuum system pipe couplings
US-2016245434-A1 · Aug 25, 2016 · US
Sealing assembly for rolling bearings, in particular for a hub bearing unit of vehicles and associated hub bearing unit
US-2016236509-A1 · Aug 18, 2016 · US
Filter device
US-2016214047-A1 · Jul 28, 2016 · US
Bidirectionally testable seal configuration
US-2016215888-A1 · Jul 28, 2016 · US
Arrangement for sealing a bellows cylinder in a pressure block of a pressure ring assembly
US-2016212803-A1 · Jul 21, 2016 · US
Multi-stage sealing system for use in a motor vehicle control unit
US-2016205796-A1 · Jul 14, 2016 · US
Frequently asked questions
Answers are generated from the same data shown on this page.
- What is CPC F16J15/002?
- CPC F16J15/002 is the Cooperative Patent Classification code for “comprising at least two sealings in succession (F16J15/162, F16J15/40 take precedence).”
- How many patents are filed under CPC F16J15/002 (comprising at least two sealings in succession (F16J15/162, F16J15/40 take precedence))?
- Our database includes 333 publications tagged with this CPC code.
- Is patent activity under CPC F16J15/002 growing?
- Publication counts under this code: 27 in 2024 vs 26 in 2025 (latest complete years).