Method of changing culture medium of a culture using spinfilters
US-2024093155-A1 · Mar 21, 2024 · US
Filters; Permeable or porous membranes or plates, e.g. dialysis
Filters; Permeable or porous membranes or plates, e.g. dialysis · Cooperative Patent Classification (CPC)
Chemical and metallurgical processes, compounds, and materials.
Related technology areas
Mapped technology topics for this CPC code.
| Metric | Value |
|---|---|
| CPC code | C12M29/04 |
| Official title | {Filters; Permeable or porous membranes or plates, e.g. dialysis} |
| Display label | Filters; Permeable or porous membranes or plates, e.g. dialysis |
| Total patents | 999 |
Filing trend
Year-over-year patent counts classified under this CPC code.
Filing activity over the last five years is stable.
| Year | Patents |
|---|---|
| 2015 | 39 |
| 2016 | 60 |
| 2017 | 65 |
| 2018 | 62 |
| 2019 | 79 |
| 2020 | 111 |
| 2021 | 115 |
| 2022 | 120 |
| 2023 | 100 |
| 2024 | 116 |
| 2025 | 109 |
| 2026 | 23 |
Representative patents
Representative publications under this CPC code from precomputed stats, or recent filings when stats are unavailable.
Cell culture equipment
US-11898130-B2 · Feb 13, 2024 · US
System and method for cell separation
US-2016348061-A1 · Dec 1, 2016 · US
Flexible Bioreactor and Support Structure System
US-2016289620-A1 · Oct 6, 2016 · US
Method of vitally supporting microalgae in a flexible bioreactor
US-2016289629-A1 · Oct 6, 2016 · US
Regulated vacuum off-gassing of gas filter for fluid processing system and related methods
US-9457306-B2 · Oct 4, 2016 · US
Method For Providing A Circuit For Biological Liquid And Circuit Obtained
US-2016264923-A1 · Sep 15, 2016 · US
Centrifugation chamber with gas permeable membrane layers for cell cultivation
US-2016264919-A1 · Sep 15, 2016 · US
Artificial photosynthesis systems and methods for producing carbon-based chemical compounds
US-2016264920-A1 · Sep 15, 2016 · US
System for recycling water to facilitate the production of ethanol
US-2016251607-A1 · Sep 1, 2016 · US
Bioreactor with feed and harvest flow through filter assembly
US-9428724-B2 · Aug 30, 2016 · US
Acoustic bioreactor processes
US-9422328-B2 · Aug 23, 2016 · US
Incubator
US-2016215252-A1 · Jul 28, 2016 · US
Cell culture apparatus for co-culture of cells
US-2016186113-A1 · Jun 30, 2016 · US
Modular platform for multi-tissue integrated cell culture
US-2016145553-A1 · May 26, 2016 · US
Cell separation and culture device
US-2016122699-A1 · May 5, 2016 · US
Integrated Continuous Isolation of Fluid Streams From Sterile Process Vessels
US-2016115438-A1 · Apr 28, 2016 · US
Cell culture apparatus for co-culture of cells
US-9309491-B2 · Apr 12, 2016 · US
System for recycling water to facilitate the production of ethanol
US-9309539-B2 · Apr 12, 2016 · US
Culture system for pluripotent stem cells and method for subculturing pluripotent stem cells
US-2016060588-A1 · Mar 3, 2016 · US
Frequently asked questions
Answers are generated from the same data shown on this page.
- What is CPC C12M29/04?
- CPC C12M29/04 is the Cooperative Patent Classification code for “Filters; Permeable or porous membranes or plates, e.g. dialysis.”
- How many patents are filed under CPC C12M29/04 (Filters; Permeable or porous membranes or plates, e.g. dialysis)?
- Our database includes 999 publications tagged with this CPC code.
- Is patent activity under CPC C12M29/04 growing?
- Publication counts under this code: 116 in 2024 vs 109 in 2025 (latest complete years).