Compound, material for organic electroluminescent elements, organic electroluminescent element, and electronic device
US-2023120404-A1 · Apr 20, 2023 · US
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by rearrangement reactions
by rearrangement reactions · 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 | C07C209/54 |
| Official title | by rearrangement reactions |
| Display label | by rearrangement reactions |
| Total patents | 19 |
Filing trend
Year-over-year patent counts classified under this CPC code.
Filing activity over the last five years is stable.
| Year | Patents |
|---|---|
| 2015 | 1 |
| 2017 | 1 |
| 2018 | 1 |
| 2019 | 2 |
| 2020 | 11 |
| 2021 | 2 |
| 2023 | 1 |
Representative patents
Representative publications under this CPC code from precomputed stats, or recent filings when stats are unavailable.
Process for producing substituted 2-allylanilines and substituted 4-aminoindanes
US-2021363106-A1 · Nov 25, 2021 · US
Method for preparing substituted 4-aminoindane derivatives
US-11180441-B2 · Nov 23, 2021 · US
Method for preparing substituted 4-aminoindane derivatives
US-2020172468-A1 · Jun 4, 2020 · US
Method of producing diamines and polyamines of the diphenylmethane series
US-10640453-B2 · May 5, 2020 · US
Method of producing diamines and polyamines of the diphenylmethane series
US-10640455-B1 · May 5, 2020 · US
Method of producing diamines and polyamines of the diphenylmethane series at different production capacities
US-10633327-B1 · Apr 28, 2020 · US
Method of producing diamines and polyamines of the diphenylmethane series at different production capacities
US-10626078-B2 · Apr 21, 2020 · US
Method of producing diamines and polyamines of the diphenylmethane series
US-2020115318-A1 · Apr 16, 2020 · US
Method of producing diamines and polyamines of the diphenylmethane series at different production capacities
US-2020115319-A1 · Apr 16, 2020 · US
Process for producing isocyanate and at least one further chemical product in an integrated production
US-10618871-B2 · Apr 14, 2020 · US
Method of producing diamines and polyamines of the diphenylmethane series at different production capacities
US-2020087244-A1 · Mar 19, 2020 · US
Method of producing diamines and polyamines of the diphenylmethane series
US-2020087243-A1 · Mar 19, 2020 · US
Process for the production of di- and polyamines of the diphenylmethane series
US-10538480-B2 · Jan 21, 2020 · US
Process for producing isocyanate and at least one further chemical product in an integrated production
US-2019185419-A1 · Jun 20, 2019 · US
Process for the production of di- and polyamines of the diphenylmethane series
US-10239984-B2 · Mar 26, 2019 · US
Process for the production of di- and polyamines of the diphenylmethane series
US-2018002271-A1 · Jan 4, 2018 · US
Process for the production of di- and polyamines of the diphenylmethane series
US-2017158798-A1 · Jun 8, 2017 · US
Transamination of nitrogen-containing compounds to high molecular weight polyalkyleneamines
US-9000217-B2 · Apr 7, 2015 · US