Apparatus for collection and subsequent reaction of liquid and solid effluent into gaseous effluent
US-10861681-B2 · Dec 8, 2020 · US
Compounds of silicon, phosphorus, germanium or arsenic
Compounds of silicon, phosphorus, germanium or arsenic · 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 | B01D2257/55 |
| Official title | Compounds of silicon, phosphorus, germanium or arsenic |
| Display label | Compounds of silicon, phosphorus, germanium or arsenic |
| Total patents | 120 |
Filing trend
Year-over-year patent counts classified under this CPC code.
Filing activity over the last five years is declining.
| Year | Patents |
|---|---|
| 2015 | 4 |
| 2016 | 5 |
| 2017 | 8 |
| 2018 | 16 |
| 2019 | 18 |
| 2020 | 15 |
| 2021 | 15 |
| 2022 | 8 |
| 2023 | 13 |
| 2024 | 9 |
| 2025 | 8 |
| 2026 | 1 |
Representative patents
Representative publications under this CPC code from precomputed stats, or recent filings when stats are unavailable.
Method for preparing simultaneous nitrogen and phosphorus removal lightweight material and the use thereof
US-2020338485-A1 · Oct 29, 2020 · US
SiOx filtration unit and method for operating the SiOx filtration unit
US-10814264-B2 · Oct 27, 2020 · US
Materials, methods, and devices for siloxane contaminant removal
US-2020324243-A1 · Oct 15, 2020 · US
Process of manufacturing adsorbent for removing siloxane compound
US-10780414-B2 · Sep 22, 2020 · US
Materials, methods, and devices for siloxane contaminant removal
US-10688433-B2 · Jun 23, 2020 · US
Production of biomethane using multiple types of membrane
US-2020179868-A1 · Jun 11, 2020 · US
Method for the removal of oxygen from an industrial gas feed
US-2020147547-A1 · May 14, 2020 · US
Production of biomethane using multiple types of membrane
US-10589215-B2 · Mar 17, 2020 · US
Chemical Warfare Agents And Related Compounds As Fuel For Internal Combustion Engines
US-2019359904-A1 · Nov 28, 2019 · US
Metal capture in a flue gas using sorbent injection
US-10478775-B2 · Nov 19, 2019 · US
Process for separation of propylene from a liquefied petroleum gas stream
US-10472306-B1 · Nov 12, 2019 · US
System and method for reducing halogen levels necessary for mercury control, increasing the service life and/or catalytic activity of an SCR catalyst and/or control of multiple emissions
US-10471384-B2 · Nov 12, 2019 · US
Water quality analysis device
US-10458968-B2 · Oct 29, 2019 · US
Process for purifying hydrocarbon streams using low reactivity adsorbents
US-10450245-B2 · Oct 22, 2019 · US
Plasma abatement of compounds containing heavy atoms
US-10449486-B2 · Oct 22, 2019 · US
Autonomous Localized Permeability Material Systems and Methods for Using and Making Same
US-2019308141-A1 · Oct 10, 2019 · US
A process for the removal of siloxanes from landfill gases
US-2019201842-A1 · Jul 4, 2019 · US
Enhancement of reduction resistance for manganese oxide adsorbents
US-2019184369-A1 · Jun 20, 2019 · US
Process of Manufacturing Adsorbent for Removing Siloxane Compound
US-2019160449-A1 · May 30, 2019 · US
Frequently asked questions
Answers are generated from the same data shown on this page.
- What is CPC B01D2257/55?
- CPC B01D2257/55 is the Cooperative Patent Classification code for “Compounds of silicon, phosphorus, germanium or arsenic.”
- How many patents are filed under CPC B01D2257/55 (Compounds of silicon, phosphorus, germanium or arsenic)?
- Our database includes 120 publications tagged with this CPC code.
- Is patent activity under CPC B01D2257/55 growing?
- Publication counts under this code: 9 in 2024 vs 8 in 2025 (latest complete years).