Cam-follower lubrication systems
US-2022282641-A1 · Sep 8, 2022 · US
of cam surfaces
of cam surfaces · 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 | F01M9/101 |
| Official title | {of cam surfaces} |
| Display label | of cam surfaces |
| Total patents | 62 |
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 | 10 |
| 2016 | 5 |
| 2017 | 7 |
| 2018 | 7 |
| 2019 | 6 |
| 2020 | 14 |
| 2021 | 5 |
| 2022 | 6 |
| 2023 | 1 |
| 2025 | 1 |
Representative patents
Representative publications under this CPC code from precomputed stats, or recent filings when stats are unavailable.
Engine, outboard motor, and watercraft
US-2022252000-A1 · Aug 11, 2022 · US
Continuous variable valve duration apparatus and engine provided with the same
US-11313258-B2 · Apr 26, 2022 · US
Sliding member
US-11300013-B2 · Apr 12, 2022 · US
Method for producing a channel in a shaft tube
US-2022056991-A1 · Feb 24, 2022 · US
Sliding member
US-2022042425-A1 · Feb 10, 2022 · US
Lubricant supply apparatus for internal combustion engine
US-11125126-B2 · Sep 21, 2021 · US
Engine valve actuation system and lifter arm assembly having lifter arm oil spray port for cam-roller lubrication
US-11066962-B1 · Jul 20, 2021 · US
Lubricating oil supply structure
US-11028740-B2 · Jun 8, 2021 · US
Cylinder head
US-10968861-B2 · Apr 6, 2021 · US
Continuous Variable Valve Duration Apparatus and Engine Provided with the Same
US-2021062691-A1 · Mar 4, 2021 · US
Tappet
US-10876441-B2 · Dec 29, 2020 · US
Lubricating structure of variable valve train
US-10858970-B2 · Dec 8, 2020 · US
Internal combustion engine, straddled vehicle, and method for manufacturing internal combustion engine
US-10823108-B1 · Nov 3, 2020 · US
Valve mechanism, engine and vehicle
US-10815837-B2 · Oct 27, 2020 · US
Device for controlling lubrication of rocker arms of engine with cylinder deactivation function
US-2020325805-A1 · Oct 15, 2020 · US
Internal combustion engine, straddled vehicle, and method for manufacturing internal combustion engine
US-2020325845-A1 · Oct 15, 2020 · US
Tappet
US-10794236-B2 · Oct 6, 2020 · US
Device for controlling lubrication of rocker arms of engine with cylinder deactivation function
US-10787940-B1 · Sep 29, 2020 · US
Lubricating oil supply structure
US-2020291834-A1 · Sep 17, 2020 · US
Frequently asked questions
Answers are generated from the same data shown on this page.
- What is CPC F01M9/101?
- CPC F01M9/101 is the Cooperative Patent Classification code for “of cam surfaces.”
- How many patents are filed under CPC F01M9/101 (of cam surfaces)?
- Our database includes 62 publications tagged with this CPC code.
- Is patent activity under CPC F01M9/101 growing?
- Publication counts under this code: 1 in 2023 vs 1 in 2025 (latest complete years).