Silica composite, method for producing the same, and method for producing propylene using the silica composite
US-9527064-B2 · Dec 27, 2016 · US
Phosphorising
Phosphorising · 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 | B01J37/28 |
| Official title | Phosphorising |
| Display label | Phosphorising |
| Total patents | 368 |
Filing trend
Year-over-year patent counts classified under this CPC code.
Filing activity over the last five years is declining.
| Year | Patents |
|---|---|
| 2015 | 47 |
| 2016 | 34 |
| 2017 | 37 |
| 2018 | 45 |
| 2019 | 39 |
| 2020 | 29 |
| 2021 | 35 |
| 2022 | 20 |
| 2023 | 27 |
| 2024 | 28 |
| 2025 | 23 |
| 2026 | 4 |
Representative patents
Representative publications under this CPC code from precomputed stats, or recent filings when stats are unavailable.
Stable conversion of alkyl halide to olefins
US-2016362349-A1 · Dec 15, 2016 · US
Fischer-Tropsch catalyst based on a metal of group VIIIB and an oxides support comprising alumina, silica, a spinel and phosphorus
US-9486789-B2 · Nov 8, 2016 · US
Catalyst and process for the conversion of oxygenates to olefins
US-2016310934-A1 · Oct 27, 2016 · US
Process for the preparation of a catalyst, catalyst and its use in a hydroconversion and/or hydrotreatment process
US-2016303546-A1 · Oct 20, 2016 · US
Hydrocracking catalyst and use of the same
US-9469817-B2 · Oct 18, 2016 · US
Process for preparing a hydrotreating catalyst
US-2016271594-A1 · Sep 22, 2016 · US
Process for preparing a hydrotreating catalyst
US-2016264879-A1 · Sep 15, 2016 · US
Hydroprocessing catalyst for heavy hydrocarbon oil, method for manufacturing hydroprocessing catalyst for heavy hydrocarbon oil, and hydroprocessing method for heavy hydrocarbon oil
US-2016230102-A1 · Aug 11, 2016 · US
Mixed oxide compositions and process for preparing isoolefins
US-9371255-B2 · Jun 21, 2016 · US
Selective Hydrogenation Catalyst and Methods of Making and Using Same
US-2016136630-A1 · May 19, 2016 · US
Self-activating hydroprocessing catalyst having enhanced activity and self-activation characteristics and its use for treating resid feedstocks
US-2016129428-A1 · May 12, 2016 · US
Process for obtaining a catalyst composite
US-9227175-B2 · Jan 5, 2016 · US
Selective hydrogenation catalyst and methods of making and using same
US-9221727-B2 · Dec 29, 2015 · US
Process for production of methacrylic acid esters
US-9199910-B2 · Dec 1, 2015 · US
Propylene production process
US-9192922-B2 · Nov 24, 2015 · US
Exhaust gas purification catalyst suppressing influence of iron compound
US-9186657-B2 · Nov 17, 2015 · US
Process for obtaining modified molecular sieves
US-9180439-B2 · Nov 10, 2015 · US
Catalyst for glycerin dehydration, preparation method thereof, and preparation method of acrolein
US-2015298105-A1 · Oct 22, 2015 · US
Co shift catalyst, co shift reactor, and method for purifying gasification gas
US-2015291899-A1 · Oct 15, 2015 · US
Frequently asked questions
Answers are generated from the same data shown on this page.
- What is CPC B01J37/28?
- CPC B01J37/28 is the Cooperative Patent Classification code for “Phosphorising.”
- How many patents are filed under CPC B01J37/28 (Phosphorising)?
- Our database includes 368 publications tagged with this CPC code.
- Is patent activity under CPC B01J37/28 growing?
- Publication counts under this code: 28 in 2024 vs 23 in 2025 (latest complete years).