Production method of asymmetric chain carbonate
US-10774028-B2 · Sep 15, 2020 · US
from phosgene or haloformates
from phosgene or haloformates · 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 | C07C68/02 |
| Official title | from phosgene or haloformates |
| Display label | from phosgene or haloformates |
| Total patents | 91 |
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 | 13 |
| 2016 | 8 |
| 2017 | 14 |
| 2018 | 14 |
| 2019 | 7 |
| 2020 | 9 |
| 2021 | 6 |
| 2022 | 7 |
| 2023 | 5 |
| 2024 | 6 |
| 2025 | 2 |
Representative patents
Representative publications under this CPC code from precomputed stats, or recent filings when stats are unavailable.
Production method of asymmetric chain carbonate
US-2020283370-A1 · Sep 10, 2020 · US
Modulators of ATP-binding cassette transporters
US-10662192-B2 · May 26, 2020 · US
Process for preparing 3-chloro-2-vinylphenylsulfonates
US-10618872-B2 · Apr 14, 2020 · US
Synthetic route to anti-viral agents
US-10442792-B2 · Oct 15, 2019 · US
A Process for Manufacturing Isocyanates and/or Polycarbonates
US-2019241507-A1 · Aug 8, 2019 · US
Method for producing dialkyldicarbonates using tertiary amines as catalysts
US-2019185407-A1 · Jun 20, 2019 · US
Fluorinated carbonates comprising double bond-containing groups, methods for their manufacture and uses thereof
US-2019177264-A1 · Jun 13, 2019 · US
Process for producing chloroformate compound
US-2019177262-A1 · Jun 13, 2019 · US
Modulators of atp-binding cassette transporters
US-2019144450-A1 · May 16, 2019 · US
Synthetic route to anti-viral agents
US-2019084966-A1 · Mar 21, 2019 · US
Bischloroformate composition, bischloroformate composition production method, bischloroformate composition-containing solution, polycarbonate resin, polycarbonate resin production method, coating liquid, electrophotographic photoreceptor, and electrophotographic device
US-2018364598-A1 · Dec 20, 2018 · US
Method for phosgenating compounds containing hydroxyl, thiol, amino and/or formamide groups
US-2018361349-A1 · Dec 20, 2018 · US
Production method of asymmetric chain carbonate
US-2018346404-A1 · Dec 6, 2018 · US
Method for producing diaryl carbonates
US-10131617-B2 · Nov 20, 2018 · US
Method for producing diaryl carbonates
US-10125083-B2 · Nov 13, 2018 · US
Method for the phosgenation of compounds comprising hydroxyl, thiol, amino and/or formamide groups
US-10118145-B2 · Nov 6, 2018 · US
Method for phosgenating compounds containing hydroxyl, thiol, amino and/or formamide groups
US-10105675-B2 · Oct 23, 2018 · US
Fluorinated carbonyl compounds comprising a triple bond, methods for their manufacture and uses thereof
US-10106492-B2 · Oct 23, 2018 · US
Process for the production of high voltage electrolyte solvents for Li-ion batteries
US-10099994-B2 · Oct 16, 2018 · US
Frequently asked questions
Answers are generated from the same data shown on this page.
- What is CPC C07C68/02?
- CPC C07C68/02 is the Cooperative Patent Classification code for “from phosgene or haloformates.”
- How many patents are filed under CPC C07C68/02 (from phosgene or haloformates)?
- Our database includes 91 publications tagged with this CPC code.
- Is patent activity under CPC C07C68/02 growing?
- Publication counts under this code: 6 in 2024 vs 2 in 2025 (latest complete years).