Aligner manufacturing methods
US-12583170-B1 · Mar 24, 2026 · US
Opening, closing or clamping means
Opening, closing or clamping means · 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 | B29C51/38 |
| Official title | Opening, closing or clamping means |
| Display label | Opening, closing or clamping means |
| Total patents | 30 |
Filing trend
Year-over-year patent counts classified under this CPC code.
Filing activity over the last five years is rapidly declining.
| Year | Patents |
|---|---|
| 2017 | 1 |
| 2018 | 5 |
| 2019 | 1 |
| 2020 | 7 |
| 2021 | 4 |
| 2022 | 5 |
| 2023 | 1 |
| 2024 | 3 |
| 2025 | 1 |
| 2026 | 2 |
Representative patents
Representative publications under this CPC code from precomputed stats, or recent filings when stats are unavailable.
Thermoforming process with a reformable mold
US-12564994-B2 · Mar 3, 2026 · US
Molding system, support arm, resin molding device, method for supporting supported member, mold, and method for producing molded body
US-12311592-B2 · May 27, 2025 · US
Thermoforming process with a reformable mold
US-2024424725-A1 · Dec 26, 2024 · US
Method for manufacturing an aircraft seat part
US-12128602-B2 · Oct 29, 2024 · US
Method for manufacturing an aircraft seat part
US-2024262029-A1 · Aug 8, 2024 · US
Apparatus For Manufacturing Pouch Of Secondary Battery And Pouch Of Secondary Battery Manufactured Thereby
US-2023369687-A1 · Nov 16, 2023 · US
Molding system, support arm, resin molding device, method for supporting supported member, mold, and method for producing molded body
US-2022371257-A1 · Nov 24, 2022 · US
Aligner manufacturing system
US-11453156-B2 · Sep 27, 2022 · US
Selective thermoforming of injection molded parts
US-11383422-B2 · Jul 12, 2022 · US
Molding station for molding packaging trays
US-2022144467-A1 · May 12, 2022 · US
Method and device for producing a 3-D substrate coated with a laminate
US-11267185-B2 · Mar 8, 2022 · US
Device for attaching mouthpiece to innerliner of aircraft water tank
US-11155020-B2 · Oct 26, 2021 · US
Thermoforming multiple aligners in parallel
US-2021237333-A1 · Aug 5, 2021 · US
Selective thermoforming of injection molded parts
US-2021122100-A1 · Apr 29, 2021 · US
Method and device for producing a 3-d substrate coated with a laminate
US-2021023766-A1 · Jan 28, 2021 · US
Method for fabricating thermoplastic sandwich structural panel using thermoforming and compression molding
US-10828822-B2 · Nov 10, 2020 · US
Method and device for producing a 3-D substrate coated with a laminate
US-10792853-B2 · Oct 6, 2020 · US
Thermoforming multiple aligners in parallel
US-2020290262-A1 · Sep 17, 2020 · US
System and method for forming parts using moveable heater and recoil alignment mechanism
US-2020269487-A1 · Aug 27, 2020 · US
Frequently asked questions
Answers are generated from the same data shown on this page.
- What is CPC B29C51/38?
- CPC B29C51/38 is the Cooperative Patent Classification code for “Opening, closing or clamping means.”
- How many patents are filed under CPC B29C51/38 (Opening, closing or clamping means)?
- Our database includes 30 publications tagged with this CPC code.
- Is patent activity under CPC B29C51/38 growing?
- Publication counts under this code: 3 in 2024 vs 1 in 2025 (latest complete years).