Lubricating tubes, systems, and methods
US-12297957-B2 · May 13, 2025 · US
This page is not indexed by search engines while we improve data quality.
Lubricating nipples
Lubricating nipples · Cooperative Patent Classification (CPC)
Engines, pumps, lighting, heating, and mechanical systems.
Related technology areas
Mapped technology topics for this CPC code.
| Metric | Value |
|---|---|
| CPC code | F16N21/02 |
| Official title | Lubricating nipples |
| Display label | Lubricating nipples |
| Total patents | 21 |
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 | 2 |
| 2017 | 1 |
| 2019 | 1 |
| 2020 | 2 |
| 2021 | 4 |
| 2022 | 5 |
| 2023 | 2 |
| 2024 | 3 |
| 2025 | 1 |
Representative patents
Representative publications under this CPC code from precomputed stats, or recent filings when stats are unavailable.
Transmission lubricating structure of helicopter
US-12031621-B2 · Jul 9, 2024 · US
Distributor for a lubricant or fluid and a system with a distributor
US-11920731-B2 · Mar 5, 2024 · US
Transmission lubricating structure of helicopter
US-11892074-B2 · Feb 6, 2024 · US
Lubricant fitting unit with integrated lubricant flowmeter
US-11619347-B2 · Apr 4, 2023 · US
Work vehicle
US-11607955-B2 · Mar 21, 2023 · US
Lubricating Tubes, Systems, and Methods
US-2022290807-A1 · Sep 15, 2022 · US
Distributor for a lubricant or fluid and a system with a distributor
US-2022154879-A1 · May 19, 2022 · US
Transmission lubricating structure of helicopter
US-2022034396-A1 · Feb 3, 2022 · US
Transmission lubricating structure of helicopter
US-2022034397-A1 · Feb 3, 2022 · US
Non-uniform spray pattern oil delivery nozzle
US-11230946-B2 · Jan 25, 2022 · US
Additively manufactured lubrication channels
US-11167865-B2 · Nov 9, 2021 · US
Work vehicle
US-2021197663-A1 · Jul 1, 2021 · US
Lubricant fitting unit with integrated lubricant flowmeter
US-2021190265-A1 · Jun 24, 2021 · US
Guide rail oiling tool
US-10907767-B2 · Feb 2, 2021 · US
Additively manufactured lubrication channels
US-2020354085-A1 · Nov 12, 2020 · US
Non-uniform spray pattern oil delivery nozzle
US-2020256211-A1 · Aug 13, 2020 · US
Guide rail oiling tool
US-2019101242-A1 · Apr 4, 2019 · US
Lubrication/bleeder fitting
US-2017009938-A1 · Jan 12, 2017 · US
High pressure grease fitting tool for online replacement
US-9205514-B2 · Dec 8, 2015 · US