Blow-molding machine with detection of a locking state
US-12576577-B2 · Mar 17, 2026 · US
Testing, e.g. for leaks
Testing, e.g. for leaks · 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 | B29C49/80 |
| Official title | Testing, e.g. for leaks |
| Display label | Testing, e.g. for leaks |
| Total patents | 48 |
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 | 3 |
| 2016 | 3 |
| 2017 | 2 |
| 2018 | 1 |
| 2019 | 2 |
| 2020 | 4 |
| 2021 | 3 |
| 2022 | 5 |
| 2023 | 8 |
| 2024 | 8 |
| 2025 | 8 |
| 2026 | 1 |
Representative patents
Representative publications under this CPC code from precomputed stats, or recent filings when stats are unavailable.
Method and apparatus for shaping plastic preforms into plastic containers, with machine regulation
US-2025360669-A1 · Nov 27, 2025 · US
Method for diagnosing a forming fluid leak in a station for forming hollow bodies
US-2025269579-A1 · Aug 28, 2025 · US
Apparatus and method for the production of plastic material preforms with control of the production units depending on inspection results
US-2025229477-A1 · Jul 17, 2025 · US
Plant and method for producing containers
US-2025205958-A1 · Jun 26, 2025 · US
Method and apparatus for heating plastic preforms with absorption measurement
US-12337521-B2 · Jun 24, 2025 · US
Device for optical inspection of parisons
US-2025073979-A1 · Mar 6, 2025 · US
Method of blow molding using a closed-loop oven system
US-2025001670-A1 · Jan 2, 2025 · US
Method of thermal imaging for a blow molding process
US-2025001671-A1 · Jan 2, 2025 · US
Device for optical inspection of parisons
US-12172361-B2 · Dec 24, 2024 · US
Device for optical inspection of preforms
US-12158433-B2 · Dec 3, 2024 · US
Method for sterilizing blow molding machine, and blow molding machine
US-12076906-B2 · Sep 3, 2024 · US
Blow molding machine and method for determining product defect
US-2024269914-A1 · Aug 15, 2024 · US
Apparatus and method for forming plastic preforms into plastic containers with clean room
US-2024269912-A1 · Aug 15, 2024 · US
Blow-molding machine with detection of a locking state
US-2024165867-A1 · May 23, 2024 · US
Method for inspecting a container made of plastics material and machine for manufacturing such a container
US-2024149518-A1 · May 9, 2024 · US
Method and apparatus for treating containers with identification of rejected containers
US-2024085871-A1 · Mar 14, 2024 · US
Method and apparatus for analyzing plastic preforms
US-11796461-B2 · Oct 24, 2023 · US
Method and apparatus for heating plastic preforms with absorption measurement
US-2023191688-A1 · Jun 22, 2023 · US
Method and a device for inspecting a process of forming plastic preforms into plastic containers and in particular plastic bottles
US-11648726-B2 · May 16, 2023 · US
Frequently asked questions
Answers are generated from the same data shown on this page.
- What is CPC B29C49/80?
- CPC B29C49/80 is the Cooperative Patent Classification code for “Testing, e.g. for leaks.”
- How many patents are filed under CPC B29C49/80 (Testing, e.g. for leaks)?
- Our database includes 48 publications tagged with this CPC code.
- Is patent activity under CPC B29C49/80 growing?
- Publication counts under this code: 8 in 2024 vs 8 in 2025 (latest complete years).