Oil tank access port cover for an aircraft engine oil system
US-2026085785-A1 · Mar 26, 2026 · US
Equipment for transferring lubricant from one container to another · Cooperative Patent Classification (CPC)
Engines, pumps, lighting, heating, and mechanical systems.
Mapped technology topics for this CPC code.
| Metric | Value |
|---|---|
| CPC code | F16N37/00 |
| Official title | Equipment for transferring lubricant from one container to another |
| Display label | Equipment for transferring lubricant from one container to another |
| Total patents | 47 |
Year-over-year patent counts classified under this CPC code.
Filing activity over the last five years is rapidly declining.
| Year | Patents |
|---|---|
| 2016 | 6 |
| 2017 | 4 |
| 2018 | 8 |
| 2019 | 6 |
| 2020 | 11 |
| 2021 | 5 |
| 2022 | 3 |
| 2023 | 1 |
| 2025 | 2 |
| 2026 | 1 |
Representative publications under this CPC code from precomputed stats, or recent filings when stats are unavailable.
US-2026085785-A1 · Mar 26, 2026 · US
US-2025373122-A1 · Dec 4, 2025 · US
US-12246406-B2 · Mar 11, 2025 · US
US-11619347-B2 · Apr 4, 2023 · US
US-2022241921-A1 · Aug 4, 2022 · US
US-11396833-B2 · Jul 26, 2022 · US
US-11230369-B2 · Jan 25, 2022 · US
US-11174755-B2 · Nov 16, 2021 · US
US-2021293164-A1 · Sep 23, 2021 · US
US-2021190265-A1 · Jun 24, 2021 · US
US-2021140352-A1 · May 13, 2021 · US
US-10900394-B2 · Jan 26, 2021 · US
US-10830333-B2 · Nov 10, 2020 · US
US-10781971-B2 · Sep 22, 2020 · US
US-2020291835-A1 · Sep 17, 2020 · US
US-10774988-B2 · Sep 15, 2020 · US
US-10731791-B2 · Aug 4, 2020 · US
US-2020240298-A1 · Jul 30, 2020 · US
US-10697336-B2 · Jun 30, 2020 · US
US-2020173606-A1 · Jun 4, 2020 · US
Answers are generated from the same data shown on this page.