Adaptive control of btx removal in sulfur recovery units
US-2024140796-A1 · May 2, 2024 · US
Aromatic hydrocarbons
Aromatic hydrocarbons · 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 | B01D2257/7027 |
| Official title | Aromatic hydrocarbons |
| Display label | Aromatic hydrocarbons |
| Total patents | 336 |
Filing trend
Year-over-year patent counts classified under this CPC code.
Filing activity over the last five years is declining.
| Year | Patents |
|---|---|
| 2015 | 21 |
| 2016 | 21 |
| 2017 | 14 |
| 2018 | 31 |
| 2019 | 36 |
| 2020 | 45 |
| 2021 | 40 |
| 2022 | 27 |
| 2023 | 39 |
| 2024 | 32 |
| 2025 | 24 |
| 2026 | 6 |
Representative patents
Representative publications under this CPC code from precomputed stats, or recent filings when stats are unavailable.
Filter arrangement for a mobile device
US-2018250624-A1 · Sep 6, 2018 · US
Method for purifying methane-comprising gas
US-2018118640-A1 · May 3, 2018 · US
Zeolite-based adsorbents based on LSX zeolite of controlled outer surface area, process for preparing them and uses thereof
US-9919289-B2 · Mar 20, 2018 · US
Zeolite-based adsorbents based on lsx zeolite of controlled outer surface area, process for preparing them and uses thereof
US-2017304800-A1 · Oct 26, 2017 · US
Exhaust gas cleaning in a method for continuously producing dinitrotoluene
US-2017291869-A1 · Oct 12, 2017 · US
End of service life indicating systems for layered filter cartridges
US-9751038-B2 · Sep 5, 2017 · US
Air filter for fuel cell vehicle
US-2017239604-A1 · Aug 24, 2017 · US
Method for preparation of ammonia gas and co2 for a urea synthesis process
US-2017210703-A1 · Jul 27, 2017 · US
Method and system for purification of natural gas using membranes
US-2017157557-A1 · Jun 8, 2017 · US
Methods and apparatuses for reforming of hydrocarbons including recovery of products using an absorption zone and a pressure swing adsorption zone
US-9663423-B2 · May 30, 2017 · US
Sulfur recovery process for treating low to medium mole percent hydrogen sulfide gas feeds with btex in a claus unit
US-2017137288-A1 · May 18, 2017 · US
Method and device for cleaning an industrial waste gas comprising CO2
US-9644840-B2 · May 9, 2017 · US
Methods and apparatuses for reforming of hydrocarbons including recovery of products using a recovery zone and a pressure swing adsorption zone
US-9637427-B2 · May 2, 2017 · US
System And Method For Removing Airborne Molecular Contaminants From Gas Streams
US-2017095771-A1 · Apr 6, 2017 · US
Method for treating waste gas containing polycyclic aromatic hydrocarbons
US-2017072363-A1 · Mar 16, 2017 · US
Sulfur recovery process for treating low to medium mole percent hydrogen sulfide gas feeds with BTEX in a Claus unit
US-9593015-B2 · Mar 14, 2017 · US
Gas Processing Apparatus
US-2017007958-A1 · Jan 12, 2017 · US
Method for heat-treating a material flow and for cleaning resulting exhaust gases
US-2016339381-A1 · Nov 24, 2016 · US
Porous crystalline frameworks, process for the preparation therof and their mechanical delamination to covalent organic nanosheets (CONS)
US-9499555-B2 · Nov 22, 2016 · US
Frequently asked questions
Answers are generated from the same data shown on this page.
- What is CPC B01D2257/7027?
- CPC B01D2257/7027 is the Cooperative Patent Classification code for “Aromatic hydrocarbons.”
- How many patents are filed under CPC B01D2257/7027 (Aromatic hydrocarbons)?
- Our database includes 336 publications tagged with this CPC code.
- Is patent activity under CPC B01D2257/7027 growing?
- Publication counts under this code: 32 in 2024 vs 24 in 2025 (latest complete years).