Recycled content triacetin
US-2023174455-A1 · Jun 8, 2023 · US
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from asymmetrical anhydrides
from asymmetrical anhydrides · 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 | C07C67/12 |
| Official title | from asymmetrical anhydrides |
| Display label | from asymmetrical anhydrides |
| Total patents | 20 |
Filing trend
Year-over-year patent counts classified under this CPC code.
Filing activity over the last five years is rapidly declining.
| Year | Patents |
|---|---|
| 2015 | 1 |
| 2016 | 1 |
| 2017 | 3 |
| 2018 | 4 |
| 2019 | 3 |
| 2020 | 4 |
| 2021 | 3 |
| 2023 | 1 |
Representative patents
Representative publications under this CPC code from precomputed stats, or recent filings when stats are unavailable.
Carboxy alkyl-ester anti-agglomerants for the control of natural gas hydrates
US-11174235-B2 · Nov 16, 2021 · US
Automated contactless access device location system and method
US-11015014-B2 · May 25, 2021 · US
Fragrance mixture
US-10988434-B2 · Apr 27, 2021 · US
Tripentyl esters of trimellitic acid
US-10875981-B2 · Dec 29, 2020 · US
Tripentyl esters of trimellitic acid
US-10577479-B2 · Mar 3, 2020 · US
General purpose plasticizers based on naphthalic acid diesters
US-10570084-B2 · Feb 25, 2020 · US
Fragrance mixture
US-2020010402-A1 · Jan 9, 2020 · US
Carboxy alkyl-ester anti-agglomerants for the control of natural gas hydrates
US-2019382360-A1 · Dec 19, 2019 · US
Automated contactless access device location system and method
US-2019218332-A1 · Jul 18, 2019 · US
Automated contactless access device location system and method
US-10269014-B2 · Apr 23, 2019 · US
Tripentyl esters of trimellitic acid
US-2018319954-A1 · Nov 8, 2018 · US
Process for the functionalization of heteroalkanes and arenes
US-10011547-B2 · Jul 3, 2018 · US
Naphthoic acid ester plasticizers and method of making
US-2018118917-A1 · May 3, 2018 · US
General purpose plasticizers based on naphthalic acid diesters
US-2018118660-A1 · May 3, 2018 · US
Process for the functionalization of heteroalkanes and arenes
US-2017275222-A1 · Sep 28, 2017 · US
Tripentyl esters of trimellitic acid
US-2017088691-A1 · Mar 30, 2017 · US
Polymeric materials having phthalate plasticizers covalently bonded to a polymer chain
US-9567417-B1 · Feb 14, 2017 · US
Natural oil polyols derived from post-consumer recycle oils
US-2016102166-A1 · Apr 14, 2016 · US
Automated contactless access device location system and method
US-9129281-B2 · Sep 8, 2015 · US