Process For The Production Of Formaldehyde
US-2018362453-A1 · Dec 20, 2018 · US
of hydroxy groups
of hydroxy groups · 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 | C07C45/29 |
| Official title | of hydroxy groups |
| Display label | of hydroxy groups |
| Total patents | 155 |
Filing trend
Year-over-year patent counts classified under this CPC code.
Filing activity over the last five years is growing.
| Year | Patents |
|---|---|
| 2015 | 21 |
| 2016 | 19 |
| 2017 | 11 |
| 2018 | 16 |
| 2019 | 15 |
| 2020 | 18 |
| 2021 | 8 |
| 2022 | 6 |
| 2023 | 13 |
| 2024 | 14 |
| 2025 | 12 |
| 2026 | 2 |
Representative patents
Representative publications under this CPC code from precomputed stats, or recent filings when stats are unavailable.
Use of novel cyclic carbaldeydes as an aromatic substance
US-10112882-B2 · Oct 30, 2018 · US
Integrated process for the production of formaldehyde-stabilized urea
US-10077235-B2 · Sep 18, 2018 · US
Bridged phthalocyanine- and napththalocyanine-metal complex catalysts and methods of using and purifying the same
US-10065980-B2 · Sep 4, 2018 · US
Ruthenium complex, method for producing same, and use of same
US-10059729-B2 · Aug 28, 2018 · US
Compositions and methods related to the production of acrylonitrile
US-2018229222-A1 · Aug 16, 2018 · US
Transfer-hydrogenation process
US-9988329-B1 · Jun 5, 2018 · US
Method of preparing 1,3-butadiene and methyl ethyl ketone from 2,3-butanediol using adiabatic reactor
US-9884800-B2 · Feb 6, 2018 · US
Method for producing menthones from isopulegol in the gas phase
US-9856199-B2 · Jan 2, 2018 · US
Method of preparing 1,3-butadiene and methyl ethyl ketone from 2,3-butanediol using adiabatic reactor
US-2017342009-A1 · Nov 30, 2017 · US
Nanoparticle catalysts for conversion of cyclohexanol to cyclohexanone
US-9822052-B2 · Nov 21, 2017 · US
Process of preparing 4-methyl-3-decen-5-one
US-9815758-B2 · Nov 14, 2017 · US
Plate-type reactor with in-situ injection
US-9738582-B2 · Aug 22, 2017 · US
Method for producing aldehyde
US-9688597-B2 · Jun 27, 2017 · US
Synthesis of Tetracyclines and intermediates thereto
US-9688644-B2 · Jun 27, 2017 · US
Process of preparing 4-methyl-3-decen-5-one
US-2017166504-A1 · Jun 15, 2017 · US
Nanoparticle catalysts for conversion of cyclohexanol to cyclohexanone
US-2017096380-A1 · Apr 6, 2017 · US
Method for producing menthones from isopulegol in the gas phase
US-2017066705-A1 · Mar 9, 2017 · US
Ruthenium complex, method for producing same, and use of same
US-2017044196-A1 · Feb 16, 2017 · US
Method for separating mandelic compounds in salified form and use of same for preparing aromatic aldehyde
US-9567283-B2 · Feb 14, 2017 · US
Frequently asked questions
Answers are generated from the same data shown on this page.
- What is CPC C07C45/29?
- CPC C07C45/29 is the Cooperative Patent Classification code for “of hydroxy groups.”
- How many patents are filed under CPC C07C45/29 (of hydroxy groups)?
- Our database includes 155 publications tagged with this CPC code.
- Is patent activity under CPC C07C45/29 growing?
- Publication counts under this code: 14 in 2024 vs 12 in 2025 (latest complete years).