No-hub pipe coupling method and apparatus
US-11193612-B2 · Dec 7, 2021 · US
made of elastic material, e.g. partly or completely surrounded by clamping devices (comprising packing adapted to sealing by fluid pressure F16L17/04)
made of elastic material, e.g. partly or completely surrounded by clamping devices (comprising packing adapted to sealing by fluid pressure F16L17/04) · 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 | F16L21/005 |
| Official title | {made of elastic material, e.g. partly or completely surrounded by clamping devices (comprising packing adapted to sealing by fluid pressure F16L17/04)} |
| Display label | made of elastic material, e.g. partly or completely surrounded by clamping devices (comprising packing adapted to sealing by fluid pressure F16L17/04) |
| Total patents | 110 |
Filing trend
Year-over-year patent counts classified under this CPC code.
Filing activity over the last five years is growing.
| Year | Patents |
|---|---|
| 2015 | 9 |
| 2016 | 10 |
| 2017 | 8 |
| 2018 | 10 |
| 2019 | 4 |
| 2020 | 12 |
| 2021 | 7 |
| 2022 | 14 |
| 2023 | 14 |
| 2024 | 11 |
| 2025 | 10 |
| 2026 | 1 |
Representative patents
Representative publications under this CPC code from precomputed stats, or recent filings when stats are unavailable.
Pipe coupling with pipe connection rings
US-11181213-B2 · Nov 23, 2021 · US
Coupling having seal with retracting center leg
US-11168816-B2 · Nov 9, 2021 · US
Multilayer tube
US-2021252823-A1 · Aug 19, 2021 · US
Combination Sealing Member and Pipe Couplings
US-2021215283-A1 · Jul 15, 2021 · US
Flow Path Member, Flow Path Unit, And Liquid Ejecting Apparatus
US-2021131591-A1 · May 6, 2021 · US
Method of preparing a pre-assembled pipe coupling
US-10962152-B2 · Mar 30, 2021 · US
Electrical Isolator
US-2020318764-A1 · Oct 8, 2020 · US
Electrical isolator
US-2020321147-A1 · Oct 8, 2020 · US
Pipe coupling with pipe connection rings
US-2020224803-A1 · Jul 16, 2020 · US
Sealing sleeve with leakage detection
US-10655764-B2 · May 19, 2020 · US
Pipe coupling with closed ring
US-10641419-B2 · May 5, 2020 · US
Composite tubes for a fluid transport system
US-10633111-B2 · Apr 28, 2020 · US
No-hub pipe coupling method and apparatus
US-2020088328-A1 · Mar 19, 2020 · US
Pre-assembled pipe coupling with manually maniputable segments
US-2020088327-A1 · Mar 19, 2020 · US
Pre-assembled pipe coupling with an insertion boundary for axial receipt of pipe ends
US-2020088330-A1 · Mar 19, 2020 · US
Hose and system for hose clamp registration
US-10578236-B2 · Mar 3, 2020 · US
Three piece pipe coupling
US-10571054-B2 · Feb 25, 2020 · US
Pipe couplings
US-2020032934-A1 · Jan 30, 2020 · US
Systems and methods for subsurface oil recovery optimization
US-10415349-B2 · Sep 17, 2019 · US
Frequently asked questions
Answers are generated from the same data shown on this page.
- What is CPC F16L21/005?
- CPC F16L21/005 is the Cooperative Patent Classification code for “made of elastic material, e.g. partly or completely surrounded by clamping devices (comprising packing adapted to sealing by fluid pressure F16L17/04).”
- How many patents are filed under CPC F16L21/005 (made of elastic material, e.g. partly or completely surrounded by clamping devices (comprising packing adapted to sealing by fluid pressure F16L17/04))?
- Our database includes 110 publications tagged with this CPC code.
- Is patent activity under CPC F16L21/005 growing?
- Publication counts under this code: 11 in 2024 vs 10 in 2025 (latest complete years).