Expandable Secondary Package for a Container
US-2019185241-A1 · Jun 20, 2019 · US
filled with fluid, e.g. inflatable elements
filled with fluid, e.g. inflatable elements · 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 | B65D81/052 |
| Official title | {filled with fluid, e.g. inflatable elements} |
| Display label | filled with fluid, e.g. inflatable elements |
| Total patents | 215 |
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 | 16 |
| 2016 | 12 |
| 2017 | 6 |
| 2018 | 22 |
| 2019 | 25 |
| 2020 | 33 |
| 2021 | 30 |
| 2022 | 29 |
| 2023 | 22 |
| 2024 | 11 |
| 2025 | 6 |
| 2026 | 3 |
Representative patents
Representative publications under this CPC code from precomputed stats, or recent filings when stats are unavailable.
Packing material including cushion
US-2019161264-A1 · May 30, 2019 · US
Shaped inflatable shoe insert
US-2019055076-A1 · Feb 21, 2019 · US
Thermal insulation dunnage product
US-2019016518-A1 · Jan 17, 2019 · US
Valve
US-10161537-B2 · Dec 25, 2018 · US
Inflatable structure for packaging and associated apparatus and methods
US-10160585-B2 · Dec 25, 2018 · US
Airlift package protection airbag container
US-10137986-B1 · Nov 27, 2018 · US
Inflatable packaging for use with UAV
US-10131428-B1 · Nov 20, 2018 · US
Dunnage bag suspender
US-2018320818-A1 · Nov 8, 2018 · US
Packing member and cushion
US-10118752-B2 · Nov 6, 2018 · US
Inflatable packaging with adhesive seals
US-10112741-B2 · Oct 30, 2018 · US
Brassiere insert
US-2018305106-A1 · Oct 25, 2018 · US
Apparatus and Method for Making Inflated Articles
US-2018297767-A1 · Oct 18, 2018 · US
Thermal insulation dunnage and method
US-10099836-B2 · Oct 16, 2018 · US
Inflatable packaging with apertures
US-10081457-B2 · Sep 25, 2018 · US
Surveillance camera packing member
US-2018249071-A1 · Aug 30, 2018 · US
Air cushioning material
US-2018237201-A1 · Aug 23, 2018 · US
Combined shipping protection and impingement detection wrap
US-2018186545-A1 · Jul 5, 2018 · US
Apparatus and method for making inflated articles
US-10011416-B2 · Jul 3, 2018 · US
Automated inflation device
US-2018162085-A1 · Jun 14, 2018 · US
Frequently asked questions
Answers are generated from the same data shown on this page.
- What is CPC B65D81/052?
- CPC B65D81/052 is the Cooperative Patent Classification code for “filled with fluid, e.g. inflatable elements.”
- How many patents are filed under CPC B65D81/052 (filled with fluid, e.g. inflatable elements)?
- Our database includes 215 publications tagged with this CPC code.
- Is patent activity under CPC B65D81/052 growing?
- Publication counts under this code: 11 in 2024 vs 6 in 2025 (latest complete years).