Feedback control optimization of counter-flow simultaneous heat and mass exchange
US-10688409-B2 · Jun 23, 2020 · US
Fractionating columns in which vapour bubbles through liquid (packing elements B01J19/30, B01J19/32)
Fractionating columns in which vapour bubbles through liquid (packing elements B01J19/30, B01J19/32) · 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 | B01D3/16 |
| Official title | Fractionating columns in which vapour bubbles through liquid (packing elements B01J19/30, B01J19/32) |
| Display label | Fractionating columns in which vapour bubbles through liquid (packing elements B01J19/30, B01J19/32) |
| Total patents | 100 |
Filing trend
Year-over-year patent counts classified under this CPC code.
Filing activity over the last five years is rapidly declining.
| Year | Patents |
|---|---|
| 2015 | 5 |
| 2016 | 13 |
| 2017 | 7 |
| 2018 | 13 |
| 2019 | 21 |
| 2020 | 12 |
| 2021 | 12 |
| 2022 | 6 |
| 2023 | 5 |
| 2024 | 3 |
| 2025 | 3 |
Representative patents
Representative publications under this CPC code from precomputed stats, or recent filings when stats are unavailable.
Base stocks and lubricant compositions containing same
US-2019359898-A1 · Nov 28, 2019 · US
Production of ultra-high-density brines using transiently-operated desalination systems
US-10479701-B2 · Nov 19, 2019 · US
Process for preparing acrylic acid
US-10479751-B2 · Nov 19, 2019 · US
Method for liquid-vapor contacting in a mass transfer column using multiple pass, parallel flow downcomer trays
US-10458703-B2 · Oct 29, 2019 · US
Process to control HI concentration in residuum stream
US-10413840-B2 · Sep 17, 2019 · US
Hydroformylation process
US-10407372-B2 · Sep 10, 2019 · US
Base stocks and lubricant compositions containing same
US-10400185-B2 · Sep 3, 2019 · US
Apparatus and Process for the Hydroconversion of Heavy Oil Products
US-2019241820-A1 · Aug 8, 2019 · US
Block processing configurations for base stock production from deasphalted oil
US-2019218465-A1 · Jul 18, 2019 · US
Carbonate ester purification method, carbonate ester solution production method, and carbonate ester purification apparatus
US-10351507-B2 · Jul 16, 2019 · US
Feedback Control Optimization of Counter-Flow Simultaneous Heat and Mass Exchange
US-2019209947-A1 · Jul 11, 2019 · US
Tray for exchange column comprising gas chimneys surmounted by hats with a streamlined profile
US-2019184331-A1 · Jun 20, 2019 · US
Block processing configurations for base stock production from deasphalted oil
US-10287516-B2 · May 14, 2019 · US
Method for producing isocyanates
US-10239826-B2 · Mar 26, 2019 · US
Feedback control optimization of counter-flow simultaneous heat and mass exchange
US-10239765-B2 · Mar 26, 2019 · US
Compact distributor tray for offshore gas/liquid contact columns
US-10201766-B2 · Feb 12, 2019 · US
Temperature-Matched Influent Injection in Humidifier Systems and Associated Methods
US-2019031531-A1 · Jan 31, 2019 · US
Formation of solid salts using high gas flow velocities in humidifiers, such as multi-stage bubble column humidifiers
US-2019022550-A1 · Jan 24, 2019 · US
Hydroformylation process
US-2019023637-A1 · Jan 24, 2019 · US
Frequently asked questions
Answers are generated from the same data shown on this page.
- What is CPC B01D3/16?
- CPC B01D3/16 is the Cooperative Patent Classification code for “Fractionating columns in which vapour bubbles through liquid (packing elements B01J19/30, B01J19/32).”
- How many patents are filed under CPC B01D3/16 (Fractionating columns in which vapour bubbles through liquid (packing elements B01J19/30, B01J19/32))?
- Our database includes 100 publications tagged with this CPC code.
- Is patent activity under CPC B01D3/16 growing?
- Publication counts under this code: 3 in 2024 vs 3 in 2025 (latest complete years).