Closure device and soft packaging container
US-12397983-B2 · Aug 26, 2025 · US
of special shape
of special shape · 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 | B65D31/16 |
| Official title | {of special shape} |
| Display label | of special shape |
| Total patents | 55 |
Filing trend
Year-over-year patent counts classified under this CPC code.
Filing activity over the last five years is declining.
| Year | Patents |
|---|---|
| 2015 | 7 |
| 2016 | 6 |
| 2017 | 4 |
| 2018 | 6 |
| 2019 | 10 |
| 2020 | 4 |
| 2021 | 5 |
| 2022 | 4 |
| 2023 | 4 |
| 2024 | 2 |
| 2025 | 3 |
Representative patents
Representative publications under this CPC code from precomputed stats, or recent filings when stats are unavailable.
Medical container
US-12377418-B2 · Aug 5, 2025 · US
Method for producing self-standing packaging bag, sealing member used to produce the self-standing packaging bag, and self-standing packaging bag produced by the method for producing self-standing packaging bag
US-2025178303-A1 · Jun 5, 2025 · US
Rectangular-bottomed packaging bag, and method for manufacturing rectangular-bottomed packaging bag
US-12103737-B2 · Oct 1, 2024 · US
Method of performing a task in registration with a seal in materials and flexible containers made by method
US-12037154-B2 · Jul 16, 2024 · US
Flexible container
US-11807423-B2 · Nov 7, 2023 · US
Bulk flux bag hybrid liner bag
US-11767158-B2 · Sep 26, 2023 · US
Rectangular-bottomed packaging bag, and method for manufacturing rectangular-bottomed packaging bag
US-2023145096-A1 · May 11, 2023 · US
Closure device and soft packaging container
US-2023086124-A1 · Mar 23, 2023 · US
Polymeric films and bags
US-11440704-B2 · Sep 13, 2022 · US
Flexible Container
US-2022250799-A1 · Aug 11, 2022 · US
Medical container
US-2022234047-A1 · Jul 28, 2022 · US
Container blanks for flexible packages and methods of making flexible packages
US-11338975-B2 · May 24, 2022 · US
Flexible container
US-11155394-B2 · Oct 26, 2021 · US
Method of Performing a Task in Registration With a Seal In Materials and Flexible Containers Made By Method
US-2021309403-A1 · Oct 7, 2021 · US
Polymeric films and bags
US-2021245927-A1 · Aug 12, 2021 · US
Polymeric films and bags
US-11014712-B2 · May 25, 2021 · US
Bulk flux bag hybrid liner bag
US-2021047108-A1 · Feb 18, 2021 · US
Pouch hanger for a bucket
US-2020385174-A1 · Dec 10, 2020 · US
Conveyable sortation bag
US-10723533-B2 · Jul 28, 2020 · US
Frequently asked questions
Answers are generated from the same data shown on this page.
- What is CPC B65D31/16?
- CPC B65D31/16 is the Cooperative Patent Classification code for “of special shape.”
- How many patents are filed under CPC B65D31/16 (of special shape)?
- Our database includes 55 publications tagged with this CPC code.
- Is patent activity under CPC B65D31/16 growing?
- Publication counts under this code: 2 in 2024 vs 3 in 2025 (latest complete years).