Battery Case Sealing Device and Battery Case Sealing Method Using the Same
US-2025357586-A1 · Nov 20, 2025 · US
Making tension-free or wrinkle-free joints
Making tension-free or wrinkle-free joints · Cooperative Patent Classification (CPC)
Separating, mixing, shaping, printing, and transporting materials.
Related technology areas
Mapped technology topics for this CPC code.
| Metric | Value |
|---|---|
| CPC code | B29C66/343 |
| Official title | {Making tension-free or wrinkle-free joints} |
| Display label | Making tension-free or wrinkle-free joints |
| Total patents | 50 |
Filing trend
Year-over-year patent counts classified under this CPC code.
Filing activity over the last five years is rapidly growing.
| Year | Patents |
|---|---|
| 2015 | 2 |
| 2016 | 6 |
| 2017 | 5 |
| 2018 | 5 |
| 2019 | 4 |
| 2020 | 6 |
| 2021 | 2 |
| 2022 | 6 |
| 2023 | 3 |
| 2024 | 4 |
| 2025 | 7 |
Representative patents
Representative publications under this CPC code from precomputed stats, or recent filings when stats are unavailable.
Aseptic fluid couplings
US-2025290588-A1 · Sep 18, 2025 · US
Welding station and method for producing a package comprising a heat-sealed wrapping
US-2025229931-A1 · Jul 17, 2025 · US
Method of manufacturing current collector foil with resin film
US-2025222660-A1 · Jul 10, 2025 · US
Sheet storage apparatus and sheet processing apparatus
US-12344413-B2 · Jul 1, 2025 · US
Aseptic fluid couplings
US-12338931-B2 · Jun 24, 2025 · US
Filler
US-2025001719-A1 · Jan 2, 2025 · US
Method for manufacturing an acoustic panel by welding
US-12115734-B2 · Oct 15, 2024 · US
Laser welded pneumatic deicer boots for aircraft
US-12110118-B2 · Oct 8, 2024 · US
Method for manufacturing an acoustic panel by welding
US-2024262042-A1 · Aug 8, 2024 · US
Sealing device for secondary battery
US-11897207-B2 · Feb 13, 2024 · US
Laser welded pneumatic deicer boots for aircraft
US-2023312112-A1 · Oct 5, 2023 · US
Air cushion inflation machine
US-11731372-B2 · Aug 22, 2023 · US
Sheet storage apparatus and sheet processing apparatus
US-2023082666-A1 · Mar 16, 2023 · US
Device for extending a film and for welding the film to a connection part having an axial direction, and method, production method, system, and bag
US-2022355961-A1 · Nov 10, 2022 · US
Aseptic fluid couplings
US-2022341526-A1 · Oct 27, 2022 · US
Aseptic fluid couplings
US-11415255-B1 · Aug 16, 2022 · US
Laser welded body
US-11390037-B2 · Jul 19, 2022 · US
Device for filling a bag, bag contour sealing tool, sealing tool, method for filling a bag, method for producing a bag, system and bag
US-2022089307-A1 · Mar 24, 2022 · US
Manufacturing process for producing hermetic single-use food containers using a sealing head having a specific profile with a rib
US-2022063848-A1 · Mar 3, 2022 · US
Frequently asked questions
Answers are generated from the same data shown on this page.
- What is CPC B29C66/343?
- CPC B29C66/343 is the Cooperative Patent Classification code for “Making tension-free or wrinkle-free joints.”
- How many patents are filed under CPC B29C66/343 (Making tension-free or wrinkle-free joints)?
- Our database includes 50 publications tagged with this CPC code.
- Is patent activity under CPC B29C66/343 growing?
- Publication counts under this code: 4 in 2024 vs 7 in 2025 (latest complete years).