Material for locating gas leak, method for locating gas leak, material for repairing gas leak, method for repairing gas leak, and device for repairing gas leak
US-12492268-B2 · Dec 9, 2025 · US
Materials for stopping leaks, e.g. in radiators, in tanks (filling pastes C09D5/34)
Materials for stopping leaks, e.g. in radiators, in tanks (filling pastes C09D5/34) · Cooperative Patent Classification (CPC)
Chemical and metallurgical processes, compounds, and materials.
Related technology areas
Mapped technology topics for this CPC code.
| Metric | Value |
|---|---|
| CPC code | C09K3/12 |
| Official title | Materials for stopping leaks, e.g. in radiators, in tanks (filling pastes C09D5/34) |
| Display label | Materials for stopping leaks, e.g. in radiators, in tanks (filling pastes C09D5/34) |
| Total patents | 48 |
Filing trend
Year-over-year patent counts classified under this CPC code.
Filing activity over the last five years is declining.
| Year | Patents |
|---|---|
| 2015 | 3 |
| 2016 | 4 |
| 2017 | 9 |
| 2018 | 4 |
| 2019 | 5 |
| 2020 | 5 |
| 2021 | 6 |
| 2022 | 2 |
| 2023 | 1 |
| 2024 | 6 |
| 2025 | 3 |
Representative patents
Representative publications under this CPC code from precomputed stats, or recent filings when stats are unavailable.
Curative free joint sealant
US-12448537-B2 · Oct 21, 2025 · US
Aqueous polymer emulsion and use thereof
US-2025066599-A1 · Feb 27, 2025 · US
Repairing material for liquid leakage, repairing method for liquid leakage, and pipeline
US-12180406-B2 · Dec 31, 2024 · US
Self-healing water-swellable hydraulic seal
US-2024318059-A1 · Sep 26, 2024 · US
Polyamide-based composition for pipes containing oil or gas
US-12060516-B2 · Aug 13, 2024 · US
Functional graphenic materials for use as adhesives and sealants
US-12018202-B2 · Jun 25, 2024 · US
Oil leakage repairing material, oil leakage repairing method, and pipe
US-11976769-B2 · May 7, 2024 · US
Self-healing water-swellable hydraulic seal
US-11939514-B2 · Mar 26, 2024 · US
Material for locating gas leak, method for locating gas leak, material for repairing gas leak, method for repairing gas leak, and device for repairing gas leak
US-2023113758-A1 · Apr 13, 2023 · US
Refrigeration cycle apparatus, refrigerating machine oil and refrigerant leakage prevention agent
US-2022333032-A1 · Oct 20, 2022 · US
Curative Free Joint Sealant
US-2022073784-A1 · Mar 10, 2022 · US
Repairing material for liquid leakage, repairing method for liquid leakage, and pipeline
US-2021388248-A1 · Dec 16, 2021 · US
Sealing material, assembly and use of a sealing material
US-2021348641-A1 · Nov 11, 2021 · US
Clearance narrowing material, clearance narrowing material composite, and article using same
US-11168170-B2 · Nov 9, 2021 · US
Sealant material
US-11066587-B2 · Jul 20, 2021 · US
Pipeline repair
US-10941895-B2 · Mar 9, 2021 · US
Sealant material
US-10889739-B2 · Jan 12, 2021 · US
Polyamide-based composition for pipes containing oil or gas
US-2020377773-A1 · Dec 3, 2020 · US
Functional Graphenic Materials for Use as Adhesives and Sealants
US-2020299557-A1 · Sep 24, 2020 · US
Frequently asked questions
Answers are generated from the same data shown on this page.
- What is CPC C09K3/12?
- CPC C09K3/12 is the Cooperative Patent Classification code for “Materials for stopping leaks, e.g. in radiators, in tanks (filling pastes C09D5/34).”
- How many patents are filed under CPC C09K3/12 (Materials for stopping leaks, e.g. in radiators, in tanks (filling pastes C09D5/34))?
- Our database includes 48 publications tagged with this CPC code.
- Is patent activity under CPC C09K3/12 growing?
- Publication counts under this code: 6 in 2024 vs 3 in 2025 (latest complete years).