Viscoelastic memory foam formulation patents: mapping the field's leaders and open ground
Filing is far more concentrated in medical and mobility uses than the bedding stereotype suggests. A47C (chairs, sofas & beds) leads at 29.4% of the 3,482 records in scope, but A61F implants and A61M body-fluid devices together account for over a fifth of filings. Filings peaked at 258 in 2017 and the last complete year, 2024, sits at 165 — a 16% drop from 2021's 196. Because publication lags filing by roughly 18 months, the 2025–2026 figures in the chart are still filling in and should not be read as a further fall.
- 1RESMED PTY LTD6.3%
- 2TEMPUR WORLD LLC2.7%
- 3NIKE INNOVATE CV2.6%
- 4SMITH & NEPHEW PLC2.0%
- 5DREAMWELL LTD2.0%
See the full viscoelastic memory foam formulation 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 viscoelastic memory foam patents?
The leading assignee in this dataset holds 219 of the 3,482 records in scope, with the fifth-ranked assignee at 69 and the tenth at 46. The top 5 combined account for 15.7% of all records and the top 10 for 23.0%, which means the field is led but not dominated by any single company. The remaining three-quarters of filings are spread across a long tail of companies with smaller or single-filing footprints, so a freedom-to-operate search needs to look well beyond the top names.
Is memory foam patent filing declining?
Filing peaked in 2017 at 258 records and fell to 165 by 2024, a 16% decline measured over the 2021-to-2024 span of complete years. That is a real cooling, not a collapse. Because patent publication lags filing by roughly 18 months, the lower figures shown for 2025 and 2026 in raw trend data are still filling in and should not be read as an accelerating drop.
What technology areas dominate viscoelastic foam patents?
Bedding and seating (IPC class A47C) is the largest single category at 29.4% of the 3,482 records in scope, but the field is broader than mattresses. Implants and prostheses (A61F) cover 12.7%, footwear (A43B) 11.0%, and devices for body fluids such as respiratory interfaces (A61M) 9.7%. Because records often carry multiple IPC classes, these categories overlap rather than sum to a clean total, reflecting genuine cross-application use of the same foam chemistry.
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 Viscoelastic Memory Foam Formulation 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.