Handling write commands during a refresh operation in a shingled magnetic recording drive
US-2026018186-A1 · Jan 15, 2026 · US
Rewritable discs
Rewritable discs · Cooperative Patent Classification (CPC)
Computing, optics, measurement, and control technologies.
Related technology areas
Mapped technology topics for this CPC code.
| Metric | Value |
|---|---|
| CPC code | G11B2220/216 |
| Official title | Rewritable discs |
| Display label | Rewritable discs |
| Total patents | 36 |
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 | 18 |
| 2016 | 7 |
| 2017 | 8 |
| 2018 | 1 |
| 2021 | 1 |
| 2026 | 1 |
Representative patents
Representative publications under this CPC code from precomputed stats, or recent filings when stats are unavailable.
Imaging device and recording control system
US-10965901-B2 · Mar 30, 2021 · US
Multimedia stream processing system
US-10021446-B2 · Jul 10, 2018 · US
Multiple outlet digital video recording system
US-9854199-B2 · Dec 26, 2017 · US
Digital security surveillance system
US-9800823-B2 · Oct 24, 2017 · US
Multimedia signal processing system
US-9788049-B2 · Oct 10, 2017 · US
Multiple outlet digital video recording system
US-2017270973-A9 · Sep 21, 2017 · US
Method of storing a real time stream of information signals on a disc like record carrier
US-9711184-B2 · Jul 18, 2017 · US
Digital security surveillance system
US-2017094218-A1 · Mar 30, 2017 · US
Imaging device and recording control system
US-2017085830-A1 · Mar 23, 2017 · US
Imaging device and recording control system
US-9549146-B2 · Jan 17, 2017 · US
Digital security surveillance system
US-9521356-B2 · Dec 13, 2016 · US
Digital security surveillance system
US-2016360147-A9 · Dec 8, 2016 · US
Information recording and/or reproducing apparatus
US-9495998-B2 · Nov 15, 2016 · US
Record carrier and apparatus for scanning the record carrier
US-9449642-B2 · Sep 20, 2016 · US
Method and apparatus for editing a video and/or audio program
US-9424883-B2 · Aug 23, 2016 · US
Method and apparatus for editing a program
US-2016042764-A1 · Feb 11, 2016 · US
Imaging device and recording control system
US-2016028989-A1 · Jan 28, 2016 · US
Recording medium for storing information for still picture, recording and/or reproducing method and apparatus therefor
US-9225954-B2 · Dec 29, 2015 · US
Recording medium, playback device, recording device, playback method and recording method for editing recorded content while maintaining compatibility with old format
US-9218109-B2 · Dec 22, 2015 · US
Frequently asked questions
Answers are generated from the same data shown on this page.
- What is CPC G11B2220/216?
- CPC G11B2220/216 is the Cooperative Patent Classification code for “Rewritable discs.”
- How many patents are filed under CPC G11B2220/216 (Rewritable discs)?
- Our database includes 36 publications tagged with this CPC code.
- Is patent activity under CPC G11B2220/216 growing?
- Publication counts under this code: 1 in 2018 vs 1 in 2021 (latest complete years).