Depolymerization of lignin using a supported metal catalyst
US-2025353988-A1 · Nov 20, 2025 · US
by pyrolysis, rearrangement or decomposition
by pyrolysis, rearrangement or decomposition · Cooperative Patent Classification (CPC)
Chemical and metallurgical processes, compounds, and materials.
Related technology areas
Mapped technology topics for this CPC code.
| Metric | Value |
|---|---|
| CPC code | C07C45/51 |
| Official title | by pyrolysis, rearrangement or decomposition |
| Display label | by pyrolysis, rearrangement or decomposition |
| Total patents | 28 |
Filing trend
Year-over-year patent counts classified under this CPC code.
Filing activity over the last five years is rapidly growing.
| Year | Patents |
|---|---|
| 2015 | 3 |
| 2016 | 2 |
| 2017 | 4 |
| 2018 | 3 |
| 2019 | 2 |
| 2020 | 1 |
| 2021 | 3 |
| 2022 | 5 |
| 2024 | 2 |
| 2025 | 3 |
Representative patents
Representative publications under this CPC code from precomputed stats, or recent filings when stats are unavailable.
Bed material for thermolytic fragmentation of sugars
US-2025289776-A1 · Sep 18, 2025 · US
Bed material for thermolytic fragmentation of sugars
US-12344576-B2 · Jul 1, 2025 · US
Process for making biobased products from sugars
US-12122739-B2 · Oct 22, 2024 · US
Crosslinked Polymers with Tunable Coefficients of Thermal Expansion
US-2024327322-A1 · Oct 3, 2024 · US
New bed material for thermolytic fragmentation of sugars
US-2022411357-A1 · Dec 29, 2022 · US
Recycle content oxo glycols
US-2022371980-A1 · Nov 24, 2022 · US
Process for making biobased products from sugars
US-2022363628-A1 · Nov 17, 2022 · US
Method for decomposing phenolic by-products
US-11414364-B2 · Aug 16, 2022 · US
Method for decomposing phenolic by-products
US-2022106241-A1 · Apr 7, 2022 · US
Cyclopentadiene fuels
US-11078139-B1 · Aug 3, 2021 · US
Ripening of 1,4-bis (4-phenoxybenzoyl)benzene
US-2021155570-A1 · May 27, 2021 · US
Ripening of 1,4-bis (4-phenoxybenzoyl)benzene
US-10981852-B2 · Apr 20, 2021 · US
Process for the preparation of ethylene glycol from sugars
US-10759726-B2 · Sep 1, 2020 · US
Ripening of 1,4-bis (4-phenoxybenzoyl)benzene
US-2019152886-A1 · May 23, 2019 · US
Process for the preparation of ethylene glycol from sugars
US-2019010104-A1 · Jan 10, 2019 · US
Method of producing optically-active aldehyde
US-10029969-B2 · Jul 24, 2018 · US
Process of production of 1-(5,5-dimethylcyclohex-1-en-1-yl)ethanone and 1-(5,5-dimethylcyclohex-6-en-1-yl )ethanone
US-10005710-B2 · Jun 26, 2018 · US
Depolymerization of lignin using metal incorporated mesoporous silicate catalysts
US-9994601-B2 · Jun 12, 2018 · US
Compounds and methods for the reduction of halogenated hydrocarbons
US-9744392-B1 · Aug 29, 2017 · US
Frequently asked questions
Answers are generated from the same data shown on this page.
- What is CPC C07C45/51?
- CPC C07C45/51 is the Cooperative Patent Classification code for “by pyrolysis, rearrangement or decomposition.”
- How many patents are filed under CPC C07C45/51 (by pyrolysis, rearrangement or decomposition)?
- Our database includes 28 publications tagged with this CPC code.
- Is patent activity under CPC C07C45/51 growing?
- Publication counts under this code: 2 in 2024 vs 3 in 2025 (latest complete years).