Control Valve Trim Patents: Top Companies & Filing Trends 2026
Control Valve Trim and Flow Characteristic Patents
Concentrated at the top. The five leading assignees hold 51.4% of all 70 records in scope, and the leading ten hold 71.4% — a field with a short list of entrenched filers rather than a broad crowd. Annual filings rose from 3 in 2017 to a peak of 7 in 2020, then tapered. Because publication typically lags filing by around 18 months, the final one or two years understate real filing activity — 2026 shows 0 largely because those applications have not published yet, not because interest has stopped.
- 1CONTROL COMPONENTS INC11
- 2FISHER CONTROLS INT LLC8
- 3SAUDI ARABIAN OIL CO8
- 4SIEMENS BUILDING TECHNOLOGIES AG5
- 5CNOOC PETROLEUM NORTH AMERICA ULC4
See the full control valve trim and flow characteristic 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
Who holds the most patents on control valve trim and flow characteristic technology?
The dataset shows a single leading assignee with 11 of the 70 records in scope, ahead of a tighter cluster running down to 4 records at fifth place and 2 at tenth. The top five assignees combined hold 51.4% of all records, and the top ten hold 71.4%, so competitive tracking should cover that whole cluster rather than one name. The remaining share is spread across a long tail of the 42 ranked companies, most filing only once or twice.
Is filing activity in control valve trim still growing?
Filings rose from 3 in 2017 to a peak of 7 in 2020, then eased in the years that followed. Because publication lags filing by roughly 18 months, the apparent drop in the most recent years partly reflects applications that have not published yet rather than a genuine fall-off in interest. A meaningful growth rate cannot be computed from this window since fewer than four complete years remain once that lag is accounted for.
What does US20130240045A1 actually cover?
This filing describes a method for determining fluid flow rate through a control valve using a hardcoded valve flow characteristic equation, flow coefficient and rangeability combined with a measured pressure drop and actuator opening fraction. It is a computation method that sits inside a control chipset rather than a claim on trim geometry itself. Anyone building a similar flow-inference approach using known valve constants plus live pressure and position feedback should review its claim scope directly rather than assume it only covers a narrow implementation.
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 Control Valve Trim and Flow Characteristic 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.