Electromagnetic Compatibility Patents: Top Companies & Trends 2026
Electromagnetic Compatibility Patents: Filing Trends and Who Holds the Claims
11.9% concentration at the top. The five leading assignees together account for 3,816 of 32,054 records in scope, leaving a long tail of single- and few-filing entrants. Annual filings rose to a peak of 990 in 2019, held near that level through 2021 at 913, then fell to 679 by 2024 — a 26% decline across that three-year window. Counts for 2025 and 2026 are still filling in under the publication lag and should not be read as a continued drop.
- 13M INNOVATIVE PROPERTIES CO3.1%
- 2APPLE INC2.8%
- 3SAMSUNG ELECTRONICS CO LTD2.4%
- 4LAIRD TECHNOLOGIES INC1.8%
- 5INTEL CORP1.8%
See the full electromagnetic compatibility patent landscape 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 on the EMC patent landscape
Who holds the most patents in electromagnetic compatibility and EMI shielding?
The assignee ranking behind this landscape covers 100 companies, with a single leader holding 1,001 records — well ahead of the fifth-ranked firm at 572 and the tenth at 267. The field is not evenly split among a handful of giants: the top five combined account for 11.9% of the 32,054 records in scope, so most filings sit with a long tail of smaller players. Anyone doing a competitive scan should look past the leader to that tail, since a meaningful share of the claim space is held outside the largest portfolios.
Is patent filing in EMC and EMI shielding growing or slowing down?
Filings peaked at 990 in 2019 and fell to 679 by 2024, a 26% decline over that three-year span. That is a genuine pullback from the peak rather than a rounding error, but it should not be read as the field dying out: publication typically lags filing by around 18 months, so 2025 and 2026 counts are still incomplete and will rise as more records publish. 2024 is the most recent year that can be treated as a reliable data point.
Which patent classes cover the most EMC and EMI shielding filings?
H05K, covering printed circuits and assemblies, is the densest single subclass at 20.4% of the 32,054 records in scope. H01L (semiconductor devices) follows at 11.3%, and H10W at 8.0%. Connectors and current collectors (H01R) and digital data processing (G06F) also show meaningful overlap. Because a single record can carry several IPC codes, these percentages sum to more than 100% and should be read as density per subclass, not as slices of a single pie.
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 Electromagnetic Compatibility Patent Landscape covering 2015–2026, data cut-off 2026-08-31. 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.