Production system, production method and application of general-purpose high-purity chemicals
US-12539471-B2 · Feb 3, 2026 · US
Plates with valves
Plates with valves · 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 | B01D3/163 |
| Official title | {Plates with valves} |
| Display label | Plates with valves |
| Total patents | 29 |
Filing trend
Year-over-year patent counts classified under this CPC code.
Filing activity over the last five years is declining.
| Year | Patents |
|---|---|
| 2015 | 2 |
| 2016 | 7 |
| 2018 | 4 |
| 2019 | 3 |
| 2020 | 2 |
| 2021 | 5 |
| 2023 | 1 |
| 2024 | 3 |
| 2025 | 1 |
| 2026 | 1 |
Representative patents
Representative publications under this CPC code from precomputed stats, or recent filings when stats are unavailable.
Mass transfer tray, use thereof, column having the same, and thermal separation process
US-2025186902-A1 · Jun 12, 2025 · US
Method and system for orifice control of valve pressure drop
US-12059640-B2 · Aug 13, 2024 · US
Method and system for orifice control of valve pressure drop
US-11958001-B2 · Apr 16, 2024 · US
Production system, production method and application of general-purpose high-purity chemicals
US-2024042343-A1 · Feb 8, 2024 · US
Bubble promoter
US-11554328-B2 · Jan 17, 2023 · US
Multiple downcomer trays
US-11148069-B2 · Oct 19, 2021 · US
Method and system for orifice control of valve pressure drop
US-2021299589-A1 · Sep 30, 2021 · US
Bubble promoter
US-2021275938-A1 · Sep 9, 2021 · US
Multiple downcomer trays
US-2021170300-A1 · Jun 10, 2021 · US
Process for conversion of plastics into fuel
US-10968394-B2 · Apr 6, 2021 · US
Aperture layout for vapor-liquid contact tray
US-10737196-B2 · Aug 11, 2020 · US
Aperture layout for vapor-liquid contact tray
US-10596483-B2 · Mar 24, 2020 · US
Process for preparing acrylic acid
US-10479751-B2 · Nov 19, 2019 · US
Aperture Layout for Vapor-Liquid Contact Tray
US-2019255457-A1 · Aug 22, 2019 · US
Process for conversion of plastics into fuel
US-2019177620-A1 · Jun 13, 2019 · US
Process for the purification of a cracking gas stream in an oil scrub column
US-10160702-B2 · Dec 25, 2018 · US
Valve for carrying out a mass transfer process
US-2018214791-A1 · Aug 2, 2018 · US
Oil scrubbing column
US-10005004-B2 · Jun 26, 2018 · US
Aperture Layout for Vapor-Liquid Contact Tray
US-2018008904-A1 · Jan 11, 2018 · US
Frequently asked questions
Answers are generated from the same data shown on this page.
- What is CPC B01D3/163?
- CPC B01D3/163 is the Cooperative Patent Classification code for “Plates with valves.”
- How many patents are filed under CPC B01D3/163 (Plates with valves)?
- Our database includes 29 publications tagged with this CPC code.
- Is patent activity under CPC B01D3/163 growing?
- Publication counts under this code: 3 in 2024 vs 1 in 2025 (latest complete years).