Centrifugal Compressor Surge Control Patents: Leaders & Trends 2026
Centrifugal Compressor Surge Control Patents: Who Holds the Claim Space
38.5% concentration. The top 5 of 934 records in scope sit with a handful of turbine and controls majors, but the remaining ranked field of 100 companies thins out fast past tenth place. Filings ran from 43 in 2017 to a peak of 44 in 2022, and the most recent complete comparison — 2021 against 2024 — shows 34 filings in both years, a 0% change. Years after 2024 in the chart will keep rising as publications catch up; they should not be read as a slowdown.
- 1GENERAL ELECTRIC CO106
- 2ROLLS ROYCE PLC88
- 3COMPRESSOR CONTROLS CORP64
- 4PRATT & WHITNEY CANADA CORP61
- 5FORD GLOBAL TECH LLC41
See the full centrifugal compressor surge control 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 in centrifugal compressor surge control?
The ranked list of 100 companies shows one assignee well ahead with 106 records, compared with 41 at fifth place and 21 at tenth. This gap suggests the leader built broad foundational coverage early, particularly around surge margin evaluation and operating envelope methods. New entrants should expect to file around, rather than ahead of, this cluster near the top of the ranking.
Is patent filing in compressor surge control growing or slowing down?
Filings have held roughly flat rather than trending in either direction: 2021 and 2024 both recorded 34 filings, a 0% change over that span, with a peak of 44 in 2022. Figures for 2025 and 2026 look lower only because publication typically lags filing by about 18 months, so those years are still filling in. Read the trend as a mature plateau, not a decline.
What technology areas do compressor surge control patents fall under?
Most records classify under F04D, non-positive-displacement pump technology, covering 55.7% of the 934 records in scope, and F02C gas-turbine plants at 35.3%. Smaller but distinct pockets include F01D turbines at 18.0%, G05B control systems at 4.8%, and F25B refrigeration at 4.5%. Because a single record can carry several IPC codes, these shares add up to more than 100%, and they show that surge control claims are usually tied to specific hardware systems rather than filed as standalone control methods.
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 Centrifugal Compressor Surge Control 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.