Formation of N-Protected bis-3,6-(4-aminoalkyl)-2,5,diketopiperazine
US-2016347721-A1 · Dec 1, 2016 · US
containing oxygen {, i.e. acids, anhydrides and their derivates with N, S, B or halogens without carriers or on carriers based on C, Si, Al or Zr; also salts of Si, Al and Zr}
containing oxygen {, i.e. acids, anhydrides and their derivates with N, S, B or halogens without carriers or on carriers based on C, Si, Al or Zr; also salts of Si, Al and Zr} · 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 | B01J27/16 |
| Official title | containing oxygen {, i.e. acids, anhydrides and their derivates with N, S, B or halogens without carriers or on carriers based on C, Si, Al or Zr; also salts of Si, Al and Zr} |
| Display label | containing oxygen {, i.e. acids, anhydrides and their derivates with N, S, B or halogens without carriers or on carriers based on C, Si, Al or Zr; also salts of Si, Al and Zr} |
| Total patents | 273 |
Filing trend
Year-over-year patent counts classified under this CPC code.
Filing activity over the last five years is declining.
| Year | Patents |
|---|---|
| 2015 | 36 |
| 2016 | 24 |
| 2017 | 34 |
| 2018 | 30 |
| 2019 | 26 |
| 2020 | 25 |
| 2021 | 28 |
| 2022 | 20 |
| 2023 | 19 |
| 2024 | 15 |
| 2025 | 12 |
| 2026 | 4 |
Representative patents
Representative publications under this CPC code from precomputed stats, or recent filings when stats are unavailable.
Method for the production of acrylic acid or its derivatives
US-9505697-B2 · Nov 29, 2016 · US
Catalysts for petrochemical catalysis
US-2016340272-A1 · Nov 24, 2016 · US
Removing unstable sulfur compounds from crude oil
US-9499749-B2 · Nov 22, 2016 · US
Catalyst for exhaust gas purification, and method for producing same
US-9498771-B2 · Nov 22, 2016 · US
Method for producing 2-furaldehyde
US-2016304482-A1 · Oct 20, 2016 · US
Process for the preparation of phosphorous containing mesoporous alumina catalyst for selective dehydration of methanol to dimethyl ether
US-9468914-B2 · Oct 18, 2016 · US
Catalysts for petrochemical catalysis
US-9446387-B2 · Sep 20, 2016 · US
Process for production of acrylic acid or its derivatives from hydroxypropionic acid or its derivatives
US-9422222-B2 · Aug 23, 2016 · US
Formation of N-protected bis-3,6-(4-aminoalkyl)-2,5,diketopiperazine
US-9416113-B2 · Aug 16, 2016 · US
Catalysis of Diketopiperazine Synthesis
US-2016221967-A1 · Aug 4, 2016 · US
Silica-Coated Alumina Activator-Supports For Metallocene Catalyst Compositions
US-2016222141-A1 · Aug 4, 2016 · US
Method for producing 2-furaldehyde
US-9403787-B2 · Aug 2, 2016 · US
Mixed oxide compositions and process for preparing isoolefins
US-9371255-B2 · Jun 21, 2016 · US
Silica-coated alumina activator-supports for metallocene catalyst compositions
US-9346896-B2 · May 24, 2016 · US
Catalysis of diketopiperazine synthesis
US-9346766-B2 · May 24, 2016 · US
Process for Obtaining a Catalyst Composite
US-2016130195-A1 · May 12, 2016 · US
Hydrocarbon conversion process including catalyst regeneration
US-9328036-B2 · May 3, 2016 · US
Process for producing light olefins by using a ZSM-5-based catalyst
US-9314780-B2 · Apr 19, 2016 · US
Method for producing catalyst for cyclic carbonate synthesis
US-2016067695-A1 · Mar 10, 2016 · US
Frequently asked questions
Answers are generated from the same data shown on this page.
- What is CPC B01J27/16?
- CPC B01J27/16 is the Cooperative Patent Classification code for “containing oxygen {, i.e. acids, anhydrides and their derivates with N, S, B or halogens without carriers or on carriers based on C, Si, Al or Zr; also salts of Si, Al and Zr}.”
- How many patents are filed under CPC B01J27/16 (containing oxygen {, i.e. acids, anhydrides and their derivates with N, S, B or halogens without carriers or on carriers based on C, Si, Al or Zr; also salts of Si, Al and Zr})?
- Our database includes 273 publications tagged with this CPC code.
- Is patent activity under CPC B01J27/16 growing?
- Publication counts under this code: 15 in 2024 vs 12 in 2025 (latest complete years).