Sealing arrangement, filter and filter housing, method of monitoring leak tightness, and leak tightness monitoring system
US-2022410049-A1 · Dec 29, 2022 · US
Dust-free rooms or enclosures
Dust-free rooms or enclosures · 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 | B01L1/04 |
| Official title | Dust-free rooms or enclosures |
| Display label | Dust-free rooms or enclosures |
| Total patents | 101 |
Filing trend
Year-over-year patent counts classified under this CPC code.
Filing activity over the last five years is stable.
| Year | Patents |
|---|---|
| 2015 | 3 |
| 2016 | 8 |
| 2017 | 6 |
| 2018 | 4 |
| 2019 | 12 |
| 2020 | 14 |
| 2021 | 9 |
| 2022 | 14 |
| 2023 | 12 |
| 2024 | 10 |
| 2025 | 9 |
Representative patents
Representative publications under this CPC code from precomputed stats, or recent filings when stats are unavailable.
Automatic analysis device
US-11519924-B2 · Dec 6, 2022 · US
Method of maintaining sterile environment of working chamber, and sterile environment maintaining apparatus
US-11478562-B2 · Oct 25, 2022 · US
Purgeable pharmaceutical fill needle
US-11439999-B2 · Sep 13, 2022 · US
Fan filter unit, sterilization apparatus and clean room
US-11112143-B2 · Sep 7, 2021 · US
Fill needle system
US-11103866-B2 · Aug 31, 2021 · US
Safety Cabinet, and Vibration Damping Mechanism for Fan Filter Unit
US-2021146348-A1 · May 20, 2021 · US
Processing system for powders, and method for decontamination of such a processing system
US-2021145748-A1 · May 20, 2021 · US
Bottle Holder and Safety Cabinet Having Bottle Holder
US-2021138475-A1 · May 13, 2021 · US
Configurable Workstations
US-2021106984-A1 · Apr 15, 2021 · US
Method for protecting and unprotecting the fluid path in a controlled environment enclosure
US-2021008540-A1 · Jan 14, 2021 · US
Safety Cabinet
US-2021001341-A1 · Jan 7, 2021 · US
Safety Cabinet
US-2021001324-A1 · Jan 7, 2021 · US
Biosafety cabinet and clean air device
US-10874012-B2 · Dec 22, 2020 · US
Safety Cabinet
US-2020393147-A1 · Dec 17, 2020 · US
System for Port and Tube Holder Assembly Attachment Device and Methods of Use
US-2020391923-A1 · Dec 17, 2020 · US
Purgeable pharmaceutical fill needle
US-2020384455-A1 · Dec 10, 2020 · US
Isolation device with built-in particle counter
US-10843183-B2 · Nov 24, 2020 · US
Method of maintaining sterile environment of working chamber, and sterile environment maintaining apparatus
US-2020360551-A1 · Nov 19, 2020 · US
Clean air device
US-10830462-B2 · Nov 10, 2020 · US
Frequently asked questions
Answers are generated from the same data shown on this page.
- What is CPC B01L1/04?
- CPC B01L1/04 is the Cooperative Patent Classification code for “Dust-free rooms or enclosures.”
- How many patents are filed under CPC B01L1/04 (Dust-free rooms or enclosures)?
- Our database includes 101 publications tagged with this CPC code.
- Is patent activity under CPC B01L1/04 growing?
- Publication counts under this code: 10 in 2024 vs 9 in 2025 (latest complete years).