Chemical bonding and tool therefore
US-12570055-B2 · Mar 10, 2026 · US
Maintenance or cleaning
Maintenance or cleaning · 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 | B29C66/876 |
| Official title | {Maintenance or cleaning} |
| Display label | Maintenance or cleaning |
| Total patents | 49 |
Filing trend
Year-over-year patent counts classified under this CPC code.
Filing activity over the last five years is declining.
| Year | Patents |
|---|---|
| 2015 | 1 |
| 2016 | 4 |
| 2017 | 2 |
| 2018 | 2 |
| 2020 | 5 |
| 2021 | 9 |
| 2022 | 10 |
| 2023 | 4 |
| 2024 | 6 |
| 2025 | 4 |
| 2026 | 2 |
Representative patents
Representative publications under this CPC code from precomputed stats, or recent filings when stats are unavailable.
Bonding panel core to fiber-reinforced thermoplastic skin(s)
US-2026048554-A1 · Feb 19, 2026 · US
Apparatus and a method for bonding webs of non-woven plastic material
US-2025289191-A1 · Sep 18, 2025 · US
Apparatus and a method for bonding webs of non-woven plastic material
US-2025289214-A1 · Sep 18, 2025 · US
Apparatus and a method for bonding webs of non-woven plastic material
US-12415322-B1 · Sep 16, 2025 · US
Heat plate lock assembly for a heat sealing machine
US-12240183-B2 · Mar 4, 2025 · US
Chemical Bonding and Tool Therefore
US-2024424747-A1 · Dec 26, 2024 · US
Sealing device for a packaging machine, packaging machine having a sealing device and method of operating a sealing device
US-2024425216-A1 · Dec 26, 2024 · US
Foam-in-bag systems and components thereof
US-12109731-B2 · Oct 8, 2024 · US
Foam-in-bag systems and components thereof
US-12030221-B2 · Jul 9, 2024 · US
Foam-in-bag systems and components thereof
US-12005609-B2 · Jun 11, 2024 · US
Foam-in-bag systems and components thereof
US-11872724-B2 · Jan 16, 2024 · US
Multi-die heat sealing system and process
US-11691353-B2 · Jul 4, 2023 · US
Elastic nonwoven material
US-11691347-B2 · Jul 4, 2023 · US
Depth control of seal line penetration for rotary ultrasonic horn/anvil welding without mechanical stop
US-11654637-B2 · May 23, 2023 · US
Depth control of seal line penetration for rotary ultrasonic horn/anvil welding without mechanical stop
US-2023053660-A1 · Feb 23, 2023 · US
Multi-die heat sealing system and process
US-2022402216-A1 · Dec 22, 2022 · US
Rotary welding device and related method
US-11510824-B2 · Nov 29, 2022 · US
Foam-in-bag systems and components thereof
US-11511462-B2 · Nov 29, 2022 · US
Elastic nonwoven material
US-2022355551-A1 · Nov 10, 2022 · US
Frequently asked questions
Answers are generated from the same data shown on this page.
- What is CPC B29C66/876?
- CPC B29C66/876 is the Cooperative Patent Classification code for “Maintenance or cleaning.”
- How many patents are filed under CPC B29C66/876 (Maintenance or cleaning)?
- Our database includes 49 publications tagged with this CPC code.
- Is patent activity under CPC B29C66/876 growing?
- Publication counts under this code: 6 in 2024 vs 4 in 2025 (latest complete years).