Magnetic disk drive
US-2025298698-A1 · Sep 25, 2025 · US
Recovery from power failure
Recovery from power failure · Cooperative Patent Classification (CPC)
Computing, optics, measurement, and control technologies.
Related technology areas
Mapped technology topics for this CPC code.
| Metric | Value |
|---|---|
| CPC code | G11B19/047 |
| Official title | {Recovery from power failure} |
| Display label | Recovery from power failure |
| Total patents | 46 |
Filing trend
Year-over-year patent counts classified under this CPC code.
Filing activity over the last five years is growing.
| Year | Patents |
|---|---|
| 2015 | 12 |
| 2016 | 3 |
| 2017 | 3 |
| 2018 | 9 |
| 2019 | 3 |
| 2020 | 5 |
| 2023 | 2 |
| 2024 | 4 |
| 2025 | 5 |
Representative patents
Representative publications under this CPC code from precomputed stats, or recent filings when stats are unavailable.
Magnetic disk apparatus and control method
US-12417037-B1 · Sep 16, 2025 · US
Magnetic disk apparatus and control method
US-2025284406-A1 · Sep 11, 2025 · US
Magnetic disk device and write method
US-12300278-B2 · May 13, 2025 · US
Magnetic disk device and write method
US-2025061919-A1 · Feb 20, 2025 · US
Data storage device with accelerated post-emergency-power-off recovery process
US-2024428819-A1 · Dec 26, 2024 · US
Data storage device with accelerated post-emergency-power-off recovery process
US-12176011-B1 · Dec 24, 2024 · US
Method of operating hard disk drives and corresponding control circuit
US-12080327-B2 · Sep 3, 2024 · US
Method of operating hard disk drives and corresponding control circuit
US-2024038263-A1 · Feb 1, 2024 · US
Idle power saving for actuator device
US-2023360676-A1 · Nov 9, 2023 · US
Idle power saving for actuator device
US-11790947-B1 · Oct 17, 2023 · US
Hard disk peak-staggering starting system
US-10824219-B2 · Nov 3, 2020 · US
Method for detecting the tilting of hard disk drive based on first and second control units
US-2020342914-A1 · Oct 29, 2020 · US
Method for detecting the tilting of hard disk drive based on first and second control units
US-10818321-B1 · Oct 27, 2020 · US
Method and apparatus for caching data in an solid state disk (SSD) of a hybrid drive that includes the SSD and a hard disk drive (HDD)
US-10761737-B2 · Sep 1, 2020 · US
Power loss data block marking
US-10643668-B1 · May 5, 2020 · US
Hard disk peak-staggering starting system
US-2019155365-A1 · May 23, 2019 · US
Save critical data upon power loss
US-10275166-B2 · Apr 30, 2019 · US
Data storage device saving partial map when read-modify-write fails during shingled writing
US-10186290-B2 · Jan 22, 2019 · US
Method and apparatus for caching data in an solid state disk (ssd) of a hybrid drive that includes the ssd and a hard disk drive (hdd)
US-2018373442-A1 · Dec 27, 2018 · US
Frequently asked questions
Answers are generated from the same data shown on this page.
- What is CPC G11B19/047?
- CPC G11B19/047 is the Cooperative Patent Classification code for “Recovery from power failure.”
- How many patents are filed under CPC G11B19/047 (Recovery from power failure)?
- Our database includes 46 publications tagged with this CPC code.
- Is patent activity under CPC G11B19/047 growing?
- Publication counts under this code: 4 in 2024 vs 5 in 2025 (latest complete years).