Anti-Cavitation Valve Patents: Leaders, Trends & White Space 2026
Anti-Cavitation and Low-Noise Valve Design Patents
Filing peaked in 2018 at 12 records, then fell away — the field's foundational art is older than its current filing activity suggests. Filings run to zero at both the 2017 and 2026 ends of the window, with the 2018 count of 12 standing as the peak year so far. Fewer than four complete post-lag years are available, so no growth rate can be stated from this trend.
- 1BECHTEL ENERGY INC13
- 2DRESSER INC9
- 3BECHTEL OIL GAS & CHEMICALS INC1
- 4MP FILTRI1
- 5DRESSER LLC1
See the full anti cavitation and low noise valve design 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 this landscape
What makes a valve design count as anti-cavitation or low-noise in patent terms?
In this dataset, claims typically centre on tortuous-path trim, multistage pressure reduction, or geometry engineered to keep the pressure recovery factor and flow velocity within limits that avoid flashing-induced cavitation. Sound power level is the other recurring metric, since cavitation and turbulent flow both generate noise that trim designs are built to suppress. Patents in this space often combine a mechanical trim claim with a stated acoustic or velocity limit rather than claiming noise reduction as a standalone effect.
Who are the leading patent holders in anti-cavitation and low-noise valve design?
The assignee ranking returned for this dataset lists seven companies, with the leading entity holding 13 records and the fifth-place holder just 1, so it is a short, top-heavy list rather than a wide competitive field. Bechtel-affiliated entities and the Dresser lineage account for the strongest filing links, including the dataset’s only substantial co-assignee pair. Honeywell International and MP Filtri also appear in the ranking but with less filing depth in this specific art.
Why does one patent from the 1970s still dominate citation counts?
US3990475A, titled ‘Low noise valve trim’, carries 133 citations in this corpus, far ahead of any other record, which reflects how long it has been available to be cited rather than a claim that it remains the most advanced design. Citation counts inside a searched corpus structurally favour older documents because they accumulate references over more years. Newer filings building on tortuous-path or stack-disc trim concepts are still frequently drafted with reference to this foundational patent’s claim scope.
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 Anti Cavitation and Low Noise Valve Design 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.