Seal structure, sealing method, and coupling equipped with said seal structure
US-2019293179-A1 · Sep 26, 2019 · US
characterised by the shape or composition of the flanges
characterised by the shape or composition of the flanges · 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 | F16L23/032 |
| Official title | characterised by the shape or composition of the flanges |
| Display label | characterised by the shape or composition of the flanges |
| Total patents | 181 |
Filing trend
Year-over-year patent counts classified under this CPC code.
Filing activity over the last five years is stable.
| Year | Patents |
|---|---|
| 2015 | 11 |
| 2016 | 11 |
| 2017 | 19 |
| 2018 | 12 |
| 2019 | 22 |
| 2020 | 29 |
| 2021 | 12 |
| 2022 | 21 |
| 2023 | 12 |
| 2024 | 15 |
| 2025 | 13 |
| 2026 | 4 |
Representative patents
Representative publications under this CPC code from precomputed stats, or recent filings when stats are unavailable.
Plastic seal fitting
US-10378686-B2 · Aug 13, 2019 · US
Blind flange and method of installing same for isolating hazardous energy within a facility
US-2019219212-A1 · Jul 18, 2019 · US
Metal seal fitting for in-tank transmission oil cooler
US-10344863-B2 · Jul 9, 2019 · US
Joint assembly for fluid carrying pipes
US-2019170286-A1 · Jun 6, 2019 · US
Pipe joint, separation prevention member, and method of connecting pipes
US-2019137017-A1 · May 9, 2019 · US
Flange plate
US-10202885-B2 · Feb 12, 2019 · US
Method for producing a flange blank and for producing a flange
US-2018363816-A1 · Dec 20, 2018 · US
Joint assembly
US-2018328257-A1 · Nov 15, 2018 · US
Sealing material and joint
US-2018292033-A1 · Oct 11, 2018 · US
Tube with coupling
US-10094497-B2 · Oct 9, 2018 · US
Irrigation pipe and method of fabrication
US-10030797-B2 · Jul 24, 2018 · US
Pressing ring, joint, and valve
US-10018290-B2 · Jul 10, 2018 · US
Case with integral heat shielding
US-10012389-B2 · Jul 3, 2018 · US
Coupling member, fluid-device connecting jig, and fluid-device connecting structure
US-2018156362-A1 · Jun 7, 2018 · US
Pair of connectors
US-2018142816-A1 · May 24, 2018 · US
Valve body with integral bypass
US-2018128383-A1 · May 10, 2018 · US
Tubular body
US-2018093421-A1 · Apr 5, 2018 · US
Plastic seal fitting
US-2018010719-A1 · Jan 11, 2018 · US
Load bearing clamp for transmitting loads to a shaft
US-2017356570-A1 · Dec 14, 2017 · US
Frequently asked questions
Answers are generated from the same data shown on this page.
- What is CPC F16L23/032?
- CPC F16L23/032 is the Cooperative Patent Classification code for “characterised by the shape or composition of the flanges.”
- How many patents are filed under CPC F16L23/032 (characterised by the shape or composition of the flanges)?
- Our database includes 181 publications tagged with this CPC code.
- Is patent activity under CPC F16L23/032 growing?
- Publication counts under this code: 15 in 2024 vs 13 in 2025 (latest complete years).