Lube base oil manufacturing process utilizing refined oil fraction of waste lubricant, and lube base oil manufactured thereby
US-12421462-B2 · Sep 23, 2025 · US
Recovery of petroleum waxes from hydrocarbon oils; Dewaxing of hydrocarbon oils · Cooperative Patent Classification (CPC)
Chemical and metallurgical processes, compounds, and materials.
Mapped technology topics for this CPC code.
| Metric | Value |
|---|---|
| CPC code | C10G73/02 |
| Official title | Recovery of petroleum waxes from hydrocarbon oils; Dewaxing of hydrocarbon oils |
| Display label | Recovery of petroleum waxes from hydrocarbon oils; Dewaxing of hydrocarbon oils |
| Total patents | 40 |
Year-over-year patent counts classified under this CPC code.
Filing activity over the last five years is declining.
| Year | Patents |
|---|---|
| 2015 | 2 |
| 2016 | 3 |
| 2017 | 4 |
| 2018 | 3 |
| 2019 | 3 |
| 2020 | 6 |
| 2021 | 7 |
| 2022 | 2 |
| 2023 | 3 |
| 2024 | 3 |
| 2025 | 4 |
Representative publications under this CPC code from precomputed stats, or recent filings when stats are unavailable.
US-12421462-B2 · Sep 23, 2025 · US
US-2025026992-A1 · Jan 23, 2025 · US
US-2025026996-A1 · Jan 23, 2025 · US
US-2025026997-A1 · Jan 23, 2025 · US
US-2024158705-A1 · May 16, 2024 · US
US-11939527-B1 · Mar 26, 2024 · US
US-2024076555-A1 · Mar 7, 2024 · US
US-11732197-B2 · Aug 22, 2023 · US
US-2023094207-A1 · Mar 30, 2023 · US
US-11566182-B2 · Jan 31, 2023 · US
US-11518943-B2 · Dec 6, 2022 · US
US-11225616-B2 · Jan 18, 2022 · US
US-11198114-B2 · Dec 14, 2021 · US
US-11186788-B2 · Nov 30, 2021 · US
US-2021301210-A1 · Sep 30, 2021 · US
US-2021189250-A1 · Jun 24, 2021 · US
US-2021087477-A1 · Mar 25, 2021 · US
US-10913909-B2 · Feb 9, 2021 · US
US-2021032550-A1 · Feb 4, 2021 · US
US-10836968-B2 · Nov 17, 2020 · US
Answers are generated from the same data shown on this page.