Hardening annulus seal test head systems and methods
US-11169044-B1 · Nov 9, 2021 · US
Test plugs for closing off the end of a pipe
Test plugs for closing off the end of a pipe · Cooperative Patent Classification (CPC)
Computing, optics, measurement, and control technologies.
Related technology areas
Mapped technology topics for this CPC code.
| Metric | Value |
|---|---|
| CPC code | G01M3/022 |
| Official title | {Test plugs for closing off the end of a pipe} |
| Display label | Test plugs for closing off the end of a pipe |
| Total patents | 120 |
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 | 4 |
| 2018 | 9 |
| 2019 | 16 |
| 2020 | 12 |
| 2021 | 21 |
| 2022 | 12 |
| 2023 | 18 |
| 2024 | 12 |
| 2025 | 8 |
| 2026 | 1 |
Representative patents
Representative publications under this CPC code from precomputed stats, or recent filings when stats are unavailable.
Test valve assembly with extraction mechanism
US-11156318-B2 · Oct 26, 2021 · US
Systems and methods for tagging and linking acoustic images
US-2021311187-A1 · Oct 7, 2021 · US
Systems and methods for analyzing and displaying acoustic data
US-2021311188-A1 · Oct 7, 2021 · US
Systems and methods for projecting and displaying acoustic data
US-2021310856-A1 · Oct 7, 2021 · US
Gas-tight plug
US-11118995-B2 · Sep 14, 2021 · US
Reusable pipe integrity test head systems and methods
US-2021270689-A1 · Sep 2, 2021 · US
Reusable pipe integrity test head systems and methods
US-2021223136-A1 · Jul 22, 2021 · US
Reusable pipe integrity test head systems and methods
US-11067469-B1 · Jul 20, 2021 · US
Poly welded annulus test head systems and methods
US-11060943-B1 · Jul 13, 2021 · US
Tool for use in providing a seal on a tube end to allow a pressure test
US-11022516-B2 · Jun 1, 2021 · US
Method for checking a sealing of a plug connection, and plug connection
US-10965057-B2 · Mar 30, 2021 · US
Method and device for leak check of air data system
US-10876858-B2 · Dec 29, 2020 · US
System and Method For Non-Destructive, In-Situ, Positive Material Identification Of A Pipe
US-2020393298-A1 · Dec 17, 2020 · US
Plug for pressure testing and method of pressure testing
US-2020300723-A1 · Sep 24, 2020 · US
Pipe Pressure Testing Method and Apparatus
US-2020256754-A1 · Aug 13, 2020 · US
Reusable pipe integrity test head systems and methods
US-10739225-B1 · Aug 11, 2020 · US
System and method for non-destructive, in-situ, positive material identification of a pipe
US-10690546-B2 · Jun 23, 2020 · US
Pipe pressure testing method and apparatus
US-10656042-B2 · May 19, 2020 · US
Test valve assembly with extraction mechanism
US-2020116289-A1 · Apr 16, 2020 · US
Frequently asked questions
Answers are generated from the same data shown on this page.
- What is CPC G01M3/022?
- CPC G01M3/022 is the Cooperative Patent Classification code for “Test plugs for closing off the end of a pipe.”
- How many patents are filed under CPC G01M3/022 (Test plugs for closing off the end of a pipe)?
- Our database includes 120 publications tagged with this CPC code.
- Is patent activity under CPC G01M3/022 growing?
- Publication counts under this code: 12 in 2024 vs 8 in 2025 (latest complete years).