Pressurizing gasket
US-2025327544-A1 · Oct 23, 2025 · US
from outside the pipe (specially adapted for bends, branch units, branching pipes, or the like F16L55/179)
from outside the pipe (specially adapted for bends, branch units, branching pipes, or the like F16L55/179) · 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 | F16L55/168 |
| Official title | from outside the pipe (specially adapted for bends, branch units, branching pipes, or the like F16L55/179) |
| Display label | from outside the pipe (specially adapted for bends, branch units, branching pipes, or the like F16L55/179) |
| Total patents | 37 |
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 | 2 |
| 2016 | 5 |
| 2017 | 1 |
| 2018 | 3 |
| 2019 | 4 |
| 2020 | 5 |
| 2021 | 7 |
| 2022 | 3 |
| 2023 | 4 |
| 2024 | 1 |
| 2025 | 2 |
Representative patents
Representative publications under this CPC code from precomputed stats, or recent filings when stats are unavailable.
Protective system for a structure and associated method
US-2025283568-A1 · Sep 11, 2025 · US
Gas line seal clamp and method of sealing a gas line
US-11994248-B2 · May 28, 2024 · US
Device and method for capturing leaks from a pipeline, valve or flange
US-2023313932-A1 · Oct 5, 2023 · US
Emergency leak clamp
US-11774027-B2 · Oct 3, 2023 · US
Plugging pinhole leaks in flowlines
US-11739879-B2 · Aug 29, 2023 · US
Plugging pinhole leaks in flowlines
US-2023175629-A1 · Jun 8, 2023 · US
Repair of active leaks in industrial systems using cold spray
US-11506326-B2 · Nov 22, 2022 · US
Emergency leak clamp
US-2022154868-A1 · May 19, 2022 · US
Gas line seal clamp and method of sealing a gas line
US-2022099232-A1 · Mar 31, 2022 · US
Non-welded type branch piping reinforcement apparatus
US-11199277-B2 · Dec 14, 2021 · US
Weld repair systems and methods for use in a nuclear reactor jet pump
US-11112052-B2 · Sep 7, 2021 · US
Sealing plug system
US-2021247012-A1 · Aug 12, 2021 · US
Sealing plug system
US-11085571-B1 · Aug 10, 2021 · US
Repair system and method
US-11079059-B1 · Aug 3, 2021 · US
Repair of Active Leaks in Industrial Systems using Cold Spray
US-2021199231-A1 · Jul 1, 2021 · US
Containment design to handle low temperature systems
US-10910122-B2 · Feb 2, 2021 · US
Repair system and method
US-10844990-B1 · Nov 24, 2020 · US
Sealing plug system
US-10844989-B1 · Nov 24, 2020 · US
Non-welded type branch piping reinforcement apparatus
US-2020132226-A1 · Apr 30, 2020 · US
Frequently asked questions
Answers are generated from the same data shown on this page.
- What is CPC F16L55/168?
- CPC F16L55/168 is the Cooperative Patent Classification code for “from outside the pipe (specially adapted for bends, branch units, branching pipes, or the like F16L55/179).”
- How many patents are filed under CPC F16L55/168 (from outside the pipe (specially adapted for bends, branch units, branching pipes, or the like F16L55/179))?
- Our database includes 37 publications tagged with this CPC code.
- Is patent activity under CPC F16L55/168 growing?
- Publication counts under this code: 1 in 2024 vs 2 in 2025 (latest complete years).