Audio Technology Patents: Who Leads, Where the Gaps Are 2026
- 21.0% concentration at the top. The five leading assignees hold 22,269 of the 105,924 records in scope — a fifth of the entire field sits with five companies.
- Filings cooled after a 2019 peak. Publications peaked at 1,202 in 2019; the last complete year-over-year comparison shows a 27% drop from 1,102 filings in 2021 to 800 in 2024.
- Speech and transducer classes lead, but narrowly. G10L (speech & audio analysis) and H04R (loudspeakers & transducers) each cover only about 5% of records, meaning no single sub-area dominates claim space.
Filing growth compares 2021 (1,102 records) with 2024 (800) — a three-year span. 2024 is the most recent year we treat as complete: publication lags filing by roughly 18 months, so 2025 onwards are still filling in and any growth rate that ends there would understate the field. Top-5 share is the combined record count of the five largest assignees divided by all 105,924 records in scope (CR5), not by the ranked leaders only.
What the audio technology patent record actually shows
Audio technology, in this dataset, spans everything from acoustic signal processing and codec bitstream design through to pose-tracked spatial audio and interface devices that carry a sound signal. The search combines audio-processing terms with encoding, tracking and interface terms, which pulls in both classic DSP work and newer immersive-audio filings that sit alongside video and AR claims. Across 105,924 published records filed or published between 2015 and the 2026 cut-off, the technology composition is spread thin: the largest single IPC subclass, G10L, covers only 5.1% of records, and the next largest, H04R, covers 5.0%.
That spread matters for strategy. A field where the top class covers barely one record in twenty is a field where claim space is fragmented rather than owned outright, even where a handful of assignees hold a visible share of total filings. The filing curve itself has already turned down from its 2019 peak, but because publication lags filing by roughly 18 months, the last two data years understate real activity and should not be read as a definitive slowdown.
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Filing trends and technology composition
The figures below are drawn directly from the dataset in scope: 105,924 published records spanning speech and acoustic processing, transducer design, stereophonic systems and the adjacent digital-transmission and interface classes that audio claims increasingly touch.
A 2019 peak, then a documented pullback
Publications rose from 952 in 2017 to a peak of 1,202 in 2019. The only clean year-over-year comparison available treats 2021 through 2024 as complete: filings fell 27%, from 1,102 to 800, over that span. 2025 and 2026 figures are still filling in as publications catch up to filing dates, so they should not be read as continued decline.
No single class dominates claim space
G10L (speech & audio analysis/synthesis) and H04R (loudspeakers & audio transducers) lead at 5.1% and 5.0% of all records respectively, with H04N (pictorial communication), G06F (digital data processing) and H04S (stereophonic systems) following at 3.8%, 3.6% and 2.4%. Because records can carry multiple IPC classes, these shares add up to more than 100% of the 105,924-record total — they describe overlap, not a single ranked hierarchy.
Shares are the percentage of the 105,924 records in scope. A patent can carry several IPC classes, so the shares add up to more than 100%.
Go deeper on Audio Technology Patent Landscape with Eureka
This page is one run against one query. Ask Eureka your own question about audio technology patent landscape and every answer comes back with the patent numbers behind it.
Try EurekaMost-cited records and a representative filing
Acoustic signal processing apparatus and acoustic signal processing method
This 2009 Panasonic filing addresses a concrete computational problem: converting down-mixed acoustic signals from fewer input channels to more output channels without the matrix arithmetic becoming too costly. Its structure — a matrix arithmetic unit paired with multiple decorrelation units generating time-incoherent signals — is a channel up-mixing approach that predates much of today's spatial-audio filing activity.Filed by Panasonic Corporation, published 2009-09-24.
| # | Publication no. | Patent title | Citations |
|---|---|---|---|
| 1 | US6611537B1 | Synchronous network for digital media streams | 2,481 |
| 2 | US6690268B2 | Video mirror systems incorporating an accessory module | 2,386 |
| 3 | US20130278631A1 | 3D positioning of augmented reality information | 2,103 |
| 4 | US20130127980A1 | Video display modification based on sensor input for a see-through near-to-eye display | 1,897 |
| 5 | US20110213664A1 | Local advertising content on an interactive head-mounted eyepiece | 1,602 |
| 6 | US5495576A | Panoramic image based virtual reality/telepresence audio-visual system and method | 1,446 |
| 7 | US20120127062A1 | Automatic focus improvement for augmented reality displays | 1,286 |
| 8 | US20120075168A1 | Eyepiece with uniformly illuminated reflective display | 1,186 |
| 9 | US20090093687A1 | Systems and methods for determining a physiological condition using an acoustic monitor | 1,146 |
| 10 | US20110161076A1 | Intuitive Computing Methods and Systems | 1,137 |
Citation counts reflect influence within this searched corpus and skew toward older records, which have had more time to accumulate citations — treat them as a signal of past influence, not current relevance.
Each row carries its publication number; clicking a row searches Eureka by that number.
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Three patterns stand out once the ranking, the trend and the class composition are read together: concentration without dominance, a cooling curve that needs a careful read, and citation leaders that point backward rather than forward.
Top tier is real but not a wall
The five leading assignees combined hold 22,269 records (21.0% of all records in scope); the ten leading assignees hold 35,069 (33.1%). That leaves roughly two-thirds of the field outside the leading ten filers — a long tail with room for a well-targeted filing strategy rather than a market already sealed shut by a handful of dominant portfolios.
A real pullback, not yet a verdict on the field
Filings dropped from 1,102 in 2021 to 800 in 2024, a documented 27% decline across the only span treated as complete in this dataset. Recent-year momentum by individual assignee also shows sharp year-over-year drops, but 2025-2026 figures are still filling in under an 18-month publication lag, so the honest read is a cooling curve, not a dead one.
Fragmented claim space, not a single owned core
No IPC subclass exceeds roughly one in twenty records, with speech/audio analysis (G10L) and transducers (H04R) leading only narrowly ahead of video communication, digital data processing and stereophonic systems. That spread signals overlapping claim territory across audio, video and interface disciplines rather than one technology core that a filer must simply out-file.
The most-cited work predates the current wave
The highest-citation records in this corpus concern synchronous media-stream networking, video mirror accessory systems and early augmented-reality positioning and head-mounted display work — all foundational, all comparatively old. High citation counts here mark historical influence on later filers, not which technical routes are commercially live today.
Eureka can read the same corpus for gaps instead of for coverage: under-claimed branches adjacent to audio technology patent landscape, with the prior art for and against each one.
Who is filing, and where the gate sits
The ranked leaders span consumer electronics, licensing specialists and platform software companies, with the top ten together accounting for a third of all records in scope. Momentum data for individual assignees shows broad pullbacks in the latest year, consistent with the field-wide 2021-2024 decline rather than any single company's retreat.
Dolby's two-entity structure files jointly at scale
The strongest co-assignee pairing in this dataset links two Dolby entities on 227 shared records, far ahead of any other pairing tracked. That pattern reflects a licensing business built on codec and bitstream IP filed jointly across corporate structures, rather than loose collaboration.
Chipset and platform filers are pulling back from recent highs
Momentum figures for major platform and chipset assignees show double-digit year-over-year declines in the latest tracked year, mirroring the field-wide 27% drop over 2021-2024. This is consistent with a maturing claim landscape rather than an exit signal, given the 18-month publication lag on the newest filings.
Most of the field sits outside the ranked leaders
With the ten leading assignees holding 33.1% of all 105,924 records, the remaining two-thirds is spread across the rest of the ranked 100 companies and beyond. That long tail is where narrower, defensible filings in under-claimed sub-areas are more likely to clear prior art cleanly.
| Assignee | Recent year | YoY |
|---|---|---|
| NVIDIA Corporation | 9 | -31% |
| Dolby International AB | 5 | -82% |
| Dolby Laboratories Licensing Corporation | 3 | -86% |
| LG Electronics | 3 | -80% |
| Oticon A/S | 2 | -88% |
| Apple Inc. | 2 | -67% |
| Sony Group Corporation | 0 | -100% |
| Qualcomm Incorporated | 0 | -100% |
Where to take this analysis
The dataset points to specific next steps depending on whether the goal is freedom-to-operate, portfolio benchmarking or identifying where to file next.
Check freedom-to-operate against the top-cited records
Before committing engineering resources to spatial-audio or channel up-mixing work, run the highest-citation records in this corpus against your own claim drafts — several of them, though older, remain foundational reference points for examiners.
Run a freedom-to-operate check in Eureka →Track the leading assignees' quarter-by-quarter filing
The 2021-2024 pullback is documented, but the latest years are still filling in under publication lag. Set up ongoing monitoring on the leading filers rather than relying on a single snapshot.
Set up assignee monitoring in Eureka →Draft around the under-claimed sub-areas
Gain/level control, pose-tracked binaural interfaces and codec bitstream synchronisation show thinner density than the G10L/H04R core. Use Eureka to search these narrowly before assuming the space is open.
Explore white space in Eureka →Common questions about audio technology patents
Across the 105,924 records in this dataset, filings concentrate at the top but not overwhelmingly: the five leading assignees together hold 22,269 records, or 21.0% of the field, and the ten leading assignees hold 35,069, or 33.1%. The leader alone holds 5,472 records. That leaves roughly two-thirds of all filings spread across the remaining ranked companies and a long tail beyond them, so no single company controls the field outright.
Publications rose to a peak of 1,202 in 2019, then the only complete year-over-year comparison in this dataset shows a 27% decline from 1,102 filings in 2021 to 800 in 2024. However, publication typically lags actual filing by around 18 months, so 2025 and 2026 figures in any dataset are still incomplete and should not be read as continued decline. The honest read is a cooling curve through the last complete data year, not a confirmed downward trend into the present.
Speech and audio analysis/synthesis (IPC class G10L) leads at 5.1% of all 105,924 records, closely followed by loudspeakers and audio transducers (H04R) at 5.0%. Pictorial communication, digital data processing and stereophonic systems classes follow at 3.8%, 3.6% and 2.4% respectively. Because individual records often carry more than one IPC class, these shares overlap rather than sum to a single hierarchy, and no one class dominates the field.
The clearest signal is the technology composition itself: even the largest IPC class covers only about 5% of records, meaning claim density across sub-areas is thinner than the headline concentration figures suggest. Specific under-claimed areas in this dataset include gain and level control tied to multi-channel decorrelation, pose-tracked binaural rendering interfaces, and codec bitstream synchronisation across mixed receiving offices. These sit adjacent to the dense speech-processing and transducer core rather than inside it.
Citation counts in this corpus are useful but backward-looking: the most-cited records include a 2000s-era synchronous media-streaming patent and early augmented-reality and head-mounted display filings, all of which have simply had more years to accumulate citations. A high citation count marks historical influence on later filers within this searched set, not necessarily which technical route is commercially active today. Pair citation data with recent-year filing momentum before drawing conclusions about current relevance.
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Disclaimer. This page is generated from Patsnap Eureka data drawn from a limited snapshot of global patent and scientific-literature records, and is provided for general information and reference only.
Patent data carries inherent limitations: recent filings (typically the most recent 18–24 months) are under-counted due to standard publication lag; counts may be reported at either a patent-family or a patent-record basis and are not always directly comparable; classification, applicant-name, and citation data may contain errors, duplicates, or omissions; and the underlying search query defines and constrains the scope shown. As a result, the analysis may be incomplete or inaccurate and may not reflect the full technology landscape.
Nothing on this page constitutes an exhaustive prior-art, novelty, freedom-to-operate, or validity search, nor does it constitute legal, financial, investment, or professional advice, and it should not be relied upon as such. Any patent, commercial, or strategic decision should be verified independently and reviewed with qualified patent, legal, and domain professionals. Patsnap makes no warranties, express or implied, as to the accuracy, completeness, or fitness for any particular purpose of the information presented.
Machine translation. Assignee and organisation names originally recorded in Chinese, Japanese or Korean have been rendered into English by an AI translation step so that the tables stay readable. These renderings are best-effort and may not match a company’s registered English name; the original name is what the underlying patent record carries, and it is what any Eureka query launched from this page uses.