Single arm stepper elevation system
US-12499908-B2 · Dec 16, 2025 · US
Selecting or spacing of record carriers for introducing the heads
Selecting or spacing of record carriers for introducing the heads · Cooperative Patent Classification (CPC)
Computing, optics, measurement, and control technologies.
Related technology areas
Mapped technology topics for this CPC code.
| Metric | Value |
|---|---|
| CPC code | G11B17/021 |
| Official title | {Selecting or spacing of record carriers for introducing the heads} |
| Display label | Selecting or spacing of record carriers for introducing the heads |
| Total patents | 44 |
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 | 1 |
| 2016 | 3 |
| 2019 | 4 |
| 2020 | 7 |
| 2021 | 8 |
| 2022 | 8 |
| 2023 | 6 |
| 2024 | 4 |
| 2025 | 3 |
Representative patents
Representative publications under this CPC code from precomputed stats, or recent filings when stats are unavailable.
Hard disk drive disk media curvature mitigation
US-12387755-B2 · Aug 12, 2025 · US
Hard disk drive disk media curvature mitigation
US-2025201273-A1 · Jun 19, 2025 · US
Glass spacer and hard disk drive device
US-12183365-B2 · Dec 31, 2024 · US
Single arm stepper elevation system
US-2024221780-A1 · Jul 4, 2024 · US
Glass spacer and hard disk drive device
US-2024071419-A1 · Feb 29, 2024 · US
Method for manufacturing glass spacer, glass spacer, and hard disk drive device
US-11869538-B2 · Jan 9, 2024 · US
Jukebox data storage system with inert environment
US-11842753-B2 · Dec 12, 2023 · US
Moveable ramp for data storage device
US-11756579-B2 · Sep 12, 2023 · US
Method for manufacturing ring-shaped glass spacer
US-11705158-B2 · Jul 18, 2023 · US
Method for manufacturing glass spacer, glass spacer, and hard disk drive device
US-2023223047-A1 · Jul 13, 2023 · US
Glass spacer, hard disk drive apparatus, and method for manufacturing glass spacer
US-11682425-B2 · Jun 20, 2023 · US
Jukebox data storage system with inert environment
US-2023054813-A1 · Feb 23, 2023 · US
Moveable ramp for data storage device
US-2022238137-A1 · Jul 28, 2022 · US
Method for manufacturing ring-shaped glass spacer
US-2022157340-A1 · May 19, 2022 · US
Retractable ramp for data storage devices
US-11308984-B2 · Apr 19, 2022 · US
Disk device with magnetic recording media and improved impact resistance
US-11308980-B2 · Apr 19, 2022 · US
Disk device with magnetic recording media and improved impact resistance
US-2022059126-A1 · Feb 24, 2022 · US
Glass spacer and hard disk drive apparatus
US-11244706-B2 · Feb 8, 2022 · US
Spacer and hard disk drive apparatus
US-11238895-B2 · Feb 1, 2022 · US
Frequently asked questions
Answers are generated from the same data shown on this page.
- What is CPC G11B17/021?
- CPC G11B17/021 is the Cooperative Patent Classification code for “Selecting or spacing of record carriers for introducing the heads.”
- How many patents are filed under CPC G11B17/021 (Selecting or spacing of record carriers for introducing the heads)?
- Our database includes 44 publications tagged with this CPC code.
- Is patent activity under CPC G11B17/021 growing?
- Publication counts under this code: 4 in 2024 vs 3 in 2025 (latest complete years).