Perceptual Quality Assessment Patents: Leaders & Trends 2026
Perceptual Quality Assessment Patents: Who Holds the QoE Claims
Filing is concentrated at the top: the top 5 assignees hold 27.6% of all 2,731 records in scope, and the top 10 hold 40.1% — a long tail of single- and few-filing entrants fills the rest. Filings rose from 162 in 2017 to a peak of 248 in 2020, then declined; measured on complete years, 2021's 211 filings fell to 112 by 2024, a -47% change. 2025 and 2026 counts are shown for completeness but understate true filing activity, since publication typically lags filing by around 18 months.
- 1TELEFONAKTIEBOLAGET LM ERICSSON (PUBL)9.6%
- 2HUAWEI TECH CO LTD7.8%
- 3CISCO TECHNOLOGY INC3.9%
- 4LENOVO (SINGAPORE) PTE LTD3.2%
- 5NIPPON TELEGRAPH & TELEPHONE CORP3.1%
See the full perceptual quality assessment analysis in Eureka
- The complete ranking, not just the top five
- Every IPC branch with its share of the corpus
- The most-cited records, and where claim space is still thin
Common questions about this landscape
Who holds the most patents in perceptual quality assessment?
The dataset’s assignee ranking shows a single leader with 262 records, well ahead of the rest of the ranked field, where fifth place holds 86 and tenth place 59. This is a steep drop rather than a gradual one, meaning the leader’s portfolio breadth is not closely matched by any other single filer. Most of the remaining activity is spread across a long tail of the 100 ranked companies, many with only a handful of records each, so a competitor watch focused only on the largest names will miss most of the field.
Is patent filing in perceptual quality assessment growing or slowing?
Filing peaked in 2020 at 248 records and has declined since on complete-year data: 211 filings in 2021 fell to 112 by 2024, a -47% change over that span. That is a genuine multi-year decline rather than a single down year. Figures for 2025 and 2026 are included in the raw trend but should not be read as confirming further decline, because publication typically lags filing by roughly 18 months and those years are still filling in.
What patent classes cover perceptual quality assessment technology?
The two largest classes are H04L (digital information transmission), covering 55.9% of the 2,731 records in scope, and H04W (wireless communication networks) at 32.8%. H04N (pictorial communication, i.e. video and TV) covers 25.7%, while classes tied more directly to perceptual modeling and AI-based estimation — G06T, G06N and G06F — each sit between 5.0% and 7.6%. Because records often carry multiple IPC codes, these percentages add to more than 100% and should each be read against the full 2,731-record total.
Disclaimer. This analysis is based on Patsnap Eureka data drawn from a limited snapshot of global patent records and is provided for general information and reference only. Patent data carries inherent limitations — recent filings are under-counted because of publication lag, counts may be on a record or family basis, classification and applicant-name data may contain errors or duplicates, and the underlying search query defines the scope shown — so the analysis may be incomplete or inaccurate and may not reflect the full technology landscape.
Nothing here is an exhaustive prior-art, novelty, freedom-to-operate or validity search, nor does it constitute legal, financial or professional advice, and it should not be relied upon as such. Verify independently and review with qualified patent and legal professionals before acting on it.
Method: Filing trend and technology composition. Derived from a Patsnap search on Perceptual Quality Assessment covering 2015–2026, data cut-off 2026-07-31. Counts reflect published records only and shift as new filings publish. Every share divides by all records in scope. Data: Patsnap Eureka. See the full landscape report.